toasters

toasters@lists.teaparty.net

1 participants
13516 discussions

Start a nNew thread

Email Address Change Notification
by newsletter＠starchefs.com 30 Jan '03

30 Jan '03

Hello, Your email address has been updated to kloranger(a)net-temps.com for the mailing list Dishrag Invites Thank you.

1 0

StarChefs Invitation
by newsletter＠starchefs.com 30 Jan '03

30 Jan '03

Dear Valued Reader, Get more flavor from your email every month! StarChefs invites you to receive our free monthly food e-zine, the Dishrag. It's informative, inspiring, -- and FREE! With each issue, you'll receive a recipe, event listings, chef profiles, and food features -- all delivered directly to your Inbox. To subscribe, simply click here http://click.email-publisher.com/maaaOf8aaVG4Xbc4BZ7b/ Then, just read and enjoy! There's no risk or obligation - you can unsubscribe at anytime. Below, we have included our Valentine's edition as a sample. ----------------------------------------- If you do not respond to this invitation within 14 days, you will no longer receive any informational emails from StarChefs. We will remove you from our mailing list. ----------------------------------------- >>The Dishrag<< StarChefs Newsletter January 30, 2003 - Issue 49 IN THIS ISSUE 1. Love Lures: Luscious Valentine's Recipes 2. Love Potions No. 4: Drink Ideas to Bewitch Your Lover 3. Chef Michael Schlow 4. Sweet Spot: Pastry Chef Jean-Francois Bonnet 5. StarChefs Culinary JobFinder's Top Five Jobs 6. StarChefs Did You Know? 7. Signature Wine Clubs 8. A Romantic Breakfast Treat ............................................................................... 1. Love Lures: Luscious Valentine's Recipes Fuel your love's passion with these aphrodisiac recipes from seven hot Miami chefs. http://click.email-publisher.com/maaaOf8aaVG4Ybc4BZ7b/ ............................................................................... 2. Love Potions No. 4: Drink Ideas to Bewitch Your Lover Liberate your inner Cupid or Aphrodite with these tempting cocktails. http://click.email-publisher.com/maaaOf8aaVG4Zbc4BZ7b/ ............................................................................... 3. Chef Michael Schlow New York flair and New England ingredients are his equation for success. StarChefs introduces Michael Schlow of Café Louis, Radius, and Via Matta in Boston. http://click.email-publisher.com/maaaOf8aaVG41bc4BZ7b/ ............................................................................... 4. Sweet Spot: Pastry Chef Jean-Francois Bonnet StarChefs' January featured Pastry Chef, Jean-Francois Bonnet of Atelier in New York, brings artistry and flavor to ice-cream sandwiches. It's ok for adults to indulge with this school-lunch favorite. http://click.email-publisher.com/maaaOf8aaVG42bc4BZ7b/ ............................................................................... 5. StarChefs Culinary JobFinder's Top Five Jobs A world of creativity awaits you. Grand Florida hotel seeks Pastry Cooks. http://click.email-publisher.com/maaaOf8aaVG43bc4BZ7b/ Conduct our house. Forthcoming NYC Asian looking for Dining Room Manager. http://click.email-publisher.com/maaaOf8aaVG44bc4BZ7b/ Our bay is your oyster. Cape Cod seafood restaurant looking for summer Line Cooks. http://click.email-publisher.com/maaaOf8aaVG45bc4BZ7b/ Our city provides daily adventures. Universal Citywalk seeks experienced Assistant Unit Manager. http://click.email-publisher.com/maaaOf8aaVG46bc4BZ7b/ Live in paradise, bake up a storm. Club Med resort needs talented Baker. http://click.email-publisher.com/maaaOf8aaVG47bc4BZ7b/ ............................................................................... 6. StarChefs Did You Know? Sun, fun, wine and food await you at the second annual South Beach Wine & Food Festival which takes place in the heart of Miami's South Beach Friday, February 28, through Sunday, March 2, 2003. Surprise your Valentine with this spectacular treat! http://click.email-publisher.com/maaaOf8aaVG48bc4BZ7b/ ............................................................................... 7. Signature Wine Clubs Join StarChefs Signature Wine Clubs and each month get two hand-selected "mystery" wines from anywhere in the world. Each featured wine selection comes with an informative dossier and recipe suggestions from celebrity chefs. Now, you can explore the global flavors of wine without leaving home. http://click.email-publisher.com/maaaOf8aaVG7ybc4BZ7b/ ............................................................................... 8. A Romantic Breakfast Treat Wake your partner with the seductive scent of this simple recipe. Ricotta-Cottage Cheese Pancakes From Breakfast in Bed by Jesse Ziff Cool, HarperCollins, 1997 Adapted by StarChefs Yield: 2-4 servings Ingredients: 1 cup unbleached white flour 1 Tablespoon sugar 1/2 teaspoon salt 1 teaspoon baking powder 4 eggs 1 cup ricotta cheese 1 cup small curd cottage cheese 3/4 cup milk 1 teaspoon vanilla extract Vegetable oil To prepare pancakes: In a medium bowl, combine the flour, sugar, salt, and baking powder. In another bowl, beat the eggs with the ricotta, cottage cheese, milk, and vanilla. Gradually add the wet ingredients to the dry, stirring just until blended. Do not overmix. Heat a griddle or heavy skillet over medium heat, and lightly grease it with vegetable oil. Preheat the oven to 250 degrees. Drop the batter onto the hot pan by heaping Tablespoonfuls. When the pancakes are bubbly on top and nicely browned on the bottom, flip them. As they cook through, transfer them to a baking sheet and keep them warm in the oven while you cook the rest of the batter. Serving suggestions: Top pancakes with fresh fruit, dried fruit, or fruit compote. ............................................................... You are receiving this newsletter because you requested it. To e-mail this to a friend, click on the link below (or cut and paste into a browser): mailto:?subject="A great newsletter from StarChefs&body=Check out http://click.email-publisher.com/maaaOf8aaVG7zbc4BZ7b/" ................................................................. StarChefs... If you like food. A lot. ==================================================================== Update your profile here: http://topica.email-publisher.com/survey/?a84IUC.bc4BZ7.dG9hc3Rl Unsubscribe here: http://topica.email-publisher.com/survey/?a84IUC.bc4BZ7.dG9hc3Rl.u Delivered by Topica Email Publisher, http://topica.email-publisher.com/

1 0

RE: Problem with using ndmpcopy with a filer
by Michael Schipp 30 Jan '03

30 Jan '03

Hi Kyle, Below is the documentation from Ontap 6.3.1 - I would check you authentication {md5|text) - see below Copying data with ndmpcopy What ndmpcopy is The ndmpcopy command calls a filer-resident data migration tool that controls the transfer of file system data between filers that support NDMP v3 or v4 and the UFS dump format. The ndmpcopy command supports both full and incremental data transfers; however, incremental transfers are limited to a maximum of two levels (one full and up to two incremental). The ndmpcopy command can transfer full or partial volumes, qtrees, or directories, but cannot be used to copy individual files. ndmpcopy functions as a simple NDMP data management application (DMA) that performs data transfers by initiating a backup operation on the source filer and recovery operation on the destination filer. It establishes separate NDMP control connections with the source and destination filers, creates a single NDMP data connection between the filers, and initiates backup and recovery operations that result in the desired data transfer between the source and destination. Because ndmpcopy is an NDMP application rather than an NDMP server, it can be executed at the command line of the source filer, the destination filer, or a filer that is neither the source nor the destination of the data transfer. It is also possible to execute ndmpcopy on a single filer that is both the source and the destination of the data transfer. See the ndmpcopy examples, next, for more information on supported data transfer topologies. How to copy data using ndmpcopy To copy data within a filer or between filers using ndmpcopy, complete this step. Note The command can also be entered from a filer that is not the source or the destination. Step Action 1 Enter the following command: ndmpcopy [options][source_filer:]source_path [destination_filer:]destination_path options can be one or more of the following: -sa username:[password]--Source authorization specifies the user name and password to be used when connecting to the source filer. -da username:[password]--Destination authorization specifies the user name and password to be used when connecting to the destination filer. -st {md5|text}--Sets the source authentication type to be used when connecting to the source filer. -dt {md5|text}--Sets the destination authentication type to be used when connecting to the destination filer. By default, md5 is the authentication type used. The text authentication type exchanges the user name and password over the network in clear text. The md5 authentication type exchanges the user name and password over the network in encrypted form. -l level--Sets the dump level used for the transfer to the specified value of level. Valid values for level are 0, 1, and 2, where 0 indicates a full transfer and 1 or 2 an incremental transfer. The default level is 0. -d--Enables generation of ndmpcopy debug log messages. ndmpcopy debug log files appear in the root volume /etc/log directory. The ndmpcopy debug log file names are in the form ndmpcopy.yyyymmdd. -f -- Enables forced mode. This mode enables overwriting system files in the /etc directory on the root volume. See Example 5 for details. -h--Prints the help message. source_filer and destination_filer can be host names or IP addresses. Examples of the ndmpcopy command In these examples, network host names are used for the filers. ("myhost" is used for a local filer and "remotehost1" and "remotehost2" are used for remote filers.) If you specify host names when you use the ndmpcopy command, the filer running the ndmpcopy command should be able to resolve these names to their IP addresses. In UNIX, you can use the ping command to make sure that host name resolution works. Example 1: This command migrates data from a source path (source_path) to a different destination path (destination_path) on the same filer (myhost). myhost> ndmpcopy -sa username:password -da username:password myhost:/vol/vol0/source_path myhost:/vol/vol0/destination_path This shorter form of the command achieves the same purpose: myhost> ndmpcopy /vol/vol0/source_path /vol/vol0/destination_path Because you are running the ndmpcopy command on myhost and the source and destination filer are the same as myhost, you can omit the source and destination filer names on the ndmpcopy command line. When your ndmpcopy command is running on the same filer as the source filer or destination filer, you can also omit the -sa or -da options. Example 2: This command migrates data from a source path (source_path) to a different destination path (destination_path) on remotehost1. myhost> ndmpcopy -da username:password /vol/vol0/source_path remotehost1:/vol/vol0/destination_path The destination filer must be specified in this case, because it is a remote filer. The destination authorization is needed, but not the source authorization. Example 3: This command migrates data from a source path (source_path) on remotehost2 to a destination path (destination_path) on myhost. myhost> ndmpcopy -sa username:password -st text remotehost2:/vol/vol0/source_path /vol/vol0/destination_path The source authentication type specified by -st is text. The ndmpcopy command tool running on myhost will authenticate with the source filer using text authentication. Example 4: This command migrates data from a source path (source_path) on remotehost1 to a destination path (destination_path) on remotehost2. myhost> ndmpcopy -sa username:password -da username:password -l 1 remotehost1:/vol/vol0/source_path remotehost2:/vol/vol0/destination_path The -l 1 option is used to do a level 1 transfer. Example 5: Without the -f option, the /etc directory and its contents on the root volume of remotehost1 are protected from being overwritten with the /etc directory from myhost, preventing unintentional changing of the system characteristics after the root volume migration is completed. myhost> ndmpcopy -da username:password /vol/rootvol remotehost1:/vol/rootvol To overwrite intentionally the /etc directory during the root volume migration, use the -f flag as in the following copy. myhost> ndmpopy -da username:password -f /vol/rootvol remotehost1:/vol/rootvol -----Original Message----- From: kyle [mailto:kyle@source.intac.net] Sent: Thursday, 30 January 2003 5:29 AM To: toasters(a)mathworks.com Subject: Problem with using ndmpcopy with a filer I know that this isnt the correct forum to ask about ndmpcopy, but I do know that some use ndmpcopy with their filers. What I am trying to do is use ndmpcopy to copy a volume from a filer to a linux server running a ndmp server(ndmpsdk). Info: Linux 2.4.18smp kernel, ndmpcopy 1.2 NetApp filer Release 6.1R1 I run the ndmpcopy command correctly(I believe; usage is below), but on my filer console I get: Wed Jan 29 13:33:22 EST [Java Thread:warning]: Ndmpd27: Top level IOException Wed Jan 29 13:33:22 EST [Java Thread:warning]: Ndmpd27: IO exception: Socket closed. My usage: ndmpcopy $filer:/vol/vol0 -sport 10000 $linux_server:/$path -dport 10000 -v -dpass Has anyone use ndmpcopy successfully? Is my usage incorrect? Thanks, K. **** ASI Solutions Disclaimer **** The material transmitted may contain confidential and/or privileged material and is intended only for the addressee. If you receive this in error, please notify the sender and destroy any copies of the material immediately. ASI will protect your Privacy according to the 10 Privacy Principles outlined under the new Privacy Act, Dec 2001. This email is also subject to copyright. Any use of or reliance upon this material by persons or entities other than the addressee is prohibited. E-mails may be interfered with, may contain computer viruses or other defects. Under no circumstances do we accept liability for any loss or damage which may result from your receipt of this message or any attachments. **** END OF MESSAGE ****

1 0

RE: wafl scan
by Art Hebert 30 Jan '03

30 Jan '03

I just ran a wafl scan measure layout. How bad is a ratio of 5.86? wafl_filesystem_sca:info]: WAFL layout ratio for volume vol0 is 5.86. (A ratio of 1 is optimal) Thanks art hebert

1 0

Problem with using ndmpcopy with a filer
by kyle 29 Jan '03

29 Jan '03

I know that this isnt the correct forum to ask about ndmpcopy, but I do know that some use ndmpcopy with their filers. What I am trying to do is use ndmpcopy to copy a volume from a filer to a linux server running a ndmp server(ndmpsdk). Info: Linux 2.4.18smp kernel, ndmpcopy 1.2 NetApp filer Release 6.1R1 I run the ndmpcopy command correctly(I believe; usage is below), but on my filer console I get: Wed Jan 29 13:33:22 EST [Java Thread:warning]: Ndmpd27: Top level IOException Wed Jan 29 13:33:22 EST [Java Thread:warning]: Ndmpd27: IO exception: Socket closed. My usage: ndmpcopy $filer:/vol/vol0 -sport 10000 $linux_server:/$path -dport 10000 -v -dpass Has anyone use ndmpcopy successfully? Is my usage incorrect? Thanks, K.

1 0

RE: trunking questions
by Alan McLachlan 29 Jan '03

29 Jan '03

Hi Patricia, The versions of Ontap you are running only support FEC ("fast ether channel") and GEC ("gigabit ether channel") - that's really all your switch guy should need to know. The filer maintains a seperate static MAC for each interface, rotating MAC's etc is a switch feature and has nothing to do with what happens on the filer (or any other server with FEC). In the case of CIFS connections (which bind to a MAC address) for your quad 100BaseT cards this means that each connection can still only acheive a theoretical maximum of 100Mbit/sec - your trunked "400Mbit" connection is the theoretical maximum aggregate throughput for 4 or more connections. So to make the most use of the trunk you need to have many concurrent client connections. What the forum message you were looking at was getting at is that several connected clients may end up bound to the same interface based on the timing of their connections and the ARP responses they get - this is why some switches with FEC support "spoof" the target MAC's to round-robin the packets evenly across the ports (since the FEC enabled server or filer won't care about which interface it receives data on. Also the author of that comment made a good point about routing - you need a FEC enabled switch between the router and the filer trunk to prevent all packets from that router hitting the same NIC. Data OnTap 6.2 and above support 802.3ad "dynamic link aggregation". If your switch supports 802.3ad you should upgrade the filers (providing your software support is paid up!) and use that method. Note that from the filer's perspective setting up an active/active trunk on 802.3ad is identical to FEC/GEC, however the switch configuration will be different. Hope this helps. regards, Alan McLachlan Senior Systems Engineer Storage Management Solutions ASI Solutions www.asi.com.au Ph +61 2 6230 1566 Fax +61 2 6230 5343 Mobile +61 428 655644 e-mail amclachlan(a)asi.com.au -----Original Message----- From: pdunkin(a)lucent.com [mailto:pdunkin@lucent.com] Sent: Wednesday, 29 January 2003 12:48 PM To: toasters(a)mathworks.com Subject: trunking questions First, thanks again to all who responded to my questions about migration to a new switch. The next question concerns NetApp support for trunking. Our F760 has two quad Ethernet cards, and our F740 has one. Each group of four is currently trunked together, and we would like to keep them that way. The guy in charge of the new switch wants to know how NetApps support groupings: port based, address based, or round robin? This <http://forums.netapp.com/conversation.asp?tid=1&vid=9553&thd=1&cid=51> says trunking is done on a per MAC address level, but in the archives of this list I saw references to round robin and didn't know if that may also be an option. So, what should I tell the switch manager? And, if it's something that can be administered on the NetApp, what command or commands do you use, with what parameters? I think I understand the vif command, but the versions I have (Release 5.3.4R3 on the F740; Release 5.3.6R2 on the F760) don't seem to have a parameter that selects a trunking algorithm. Thanks! -- Patricia Dunkin Lucent Technologies pdunkin(a)lucent.com 600 Mountain Avenue 2F-213 Phone: 908-582-5843 Murray Hill, NJ 07974-0636 Fax: 908-582-3662 **** ASI Solutions Disclaimer **** The material transmitted may contain confidential and/or privileged material and is intended only for the addressee. If you receive this in error, please notify the sender and destroy any copies of the material immediately. ASI will protect your Privacy according to the 10 Privacy Principles outlined under the new Privacy Act, Dec 2001. This email is also subject to copyright. Any use of or reliance upon this material by persons or entities other than the addressee is prohibited. E-mails may be interfered with, may contain computer viruses or other defects. Under no circumstances do we accept liability for any loss or damage which may result from your receipt of this message or any attachments. **** END OF MESSAGE ****

1 0

trunking questions
by pdunkin＠lucent.com 29 Jan '03

29 Jan '03

First, thanks again to all who responded to my questions about migration to a new switch. The next question concerns NetApp support for trunking. Our F760 has two quad Ethernet cards, and our F740 has one. Each group of four is currently trunked together, and we would like to keep them that way. The guy in charge of the new switch wants to know how NetApps support groupings: port based, address based, or round robin? This <http://forums.netapp.com/conversation.asp?tid=1&vid=9553&thd=1&cid=51> says trunking is done on a per MAC address level, but in the archives of this list I saw references to round robin and didn't know if that may also be an option. So, what should I tell the switch manager? And, if it's something that can be administered on the NetApp, what command or commands do you use, with what parameters? I think I understand the vif command, but the versions I have (Release 5.3.4R3 on the F740; Release 5.3.6R2 on the F760) don't seem to have a parameter that selects a trunking algorithm. Thanks! -- Patricia Dunkin Lucent Technologies pdunkin(a)lucent.com 600 Mountain Avenue 2F-213 Phone: 908-582-5843 Murray Hill, NJ 07974-0636 Fax: 908-582-3662

1 0

RE: wafl scan
by jwitham＠takedapharm.com 28 Jan '03

28 Jan '03

We use 'wafl scan reallocate' weekly to reorder our Exchange 5.5 databases. They keep growing, and are over 100GB apiece. The wafl scan reallocate helps our use of SnapManager verifications greatly. We have been known to run it in the middle of the day, but with a big performance hit (as you have seen). Haven't tried it in conjunction with SnapMirror. Just for grins, we also use 'wafl scan measure_layout' before and after the reallocate to ensure that we've accomplished something. We affectionately refer to the process as 'reshuffling the wafl house'. HTH, -john -----Original Message----- From: Ambrose_Earle(a)shamrockfoods.com [mailto:Ambrose_Earle@shamrockfoods.com] Sent: Thursday, January 23, 2003 7:28 PM To: toasters(a)mathworks.com Subject: wafl scan Does anyone have any (good) experience with the wafl scan commands? I am testing Snapmirror and used it to mirror 7x34's to 10x34's. Of course, the data was only written to the first seven drives, so I used 'wafl scan reallocate <volume>' and it seemed to improve the layout quite dramatically. Is this a good use of the command? Other than affecting performance, I'm assuming everything is accessible during the run of this command? Thanks in advance, This message is for the designated recipient only and may contain privileged or confidential information. If you have received it in error, please notify the sender immediately and delete the original. Any other use of the email by you is prohibited.

1 0

On Board Fiber Channel performance
by Walter Ellinthorpe 28 Jan '03

28 Jan '03

I have Filers in several locations. My newest installation has a noticeable DECREASE in performance. Of all the possible factors (OS version, network hardware/software etc..) the only common denominator is that all of my previous installations have filers with two PCI Fiber Channel Cards and the filers in the new location use One PCI Fiber Channel card and one On-Board Fiber Channel adapter. Are there any known issues with using the on-board Fiber Channel adapter vs. PCI Fiber Channel adapters ?? Thanks in advance, --Walter Ellinthorpe -- =============================================================== | Walter Ellinthorpe United Messaging Field Engineer | | Walter.Ellinthorpe(a)UnitedMessaging.com (W) 703-234-5305 | | 13800 Coppermine Road Suite 279 Herndon, VA 20171 |

3 2

RE: Backup performances
by matej.moskon＠ourspace.si 28 Jan '03

28 Jan '03

Yes, I do backups on DLT 4500 drive and I use DLT IV media (40/80 GB). When I produce some aditionaly load thrue NFS, I can write on DLT as much fast as you are (5MB/s), but with no load (except backup), I get 500kB/s. Isn't that wierd? -----Original Message----- From: Jeff Burton [mailto:burtonj@pprd.abbott.com] Sent: Monday, January 27, 2003 3:54 PM To: toasters(a)mathworks.com Subject: Re: Backup performances Assuming you are backing up to tape, how many and what type of tape drives are you writing to? We are mostly backing up to DLT's and they max out around 5555kB/s. I have never used OmniBak Disk Agent, but in NetBackup we increased the number of data streams to 4 so we can get about 80GB an hour. -------------------------------------------------------------- Jeff Burton UNIX Administrator Dept. GB34/Bldg. AP9A-LL EMAIL: burtonj(a)pprd.abbott.com Abbott Laboratories PHONE: 847-935-5778 100 Abbott Park Rd. FAX: 847-935-0142 Abbott Park, IL 60064-6115 On Mon, Jan 27, 2003 at 09:51:22AM +0100, matej.moskon(a)ourspace.si wrote: > Hi toasters! > > I'm facing with very odd performance issue during the backup of snapshots. I have OmniBak Disk Agent instaled on HP-UX 11.0 and F740 DOT 6.0.1R3 when I start with backup procedure, the performances are as follow (sysstat 2): > > CPU NFS CIFS HTTP Net kB/s Disk kB/s Tape kB/s Cache > 21% 179 12 0 113 1061 2205 0 0 0 1 > 19% 207 8 0 167 1153 1132 0 0 0 1 > 21% 127 8 0 114 555 1473 868 0 0 1 > 17% 128 51 0 118 514 525 0 0 0 1 > 16% 114 15 0 124 319 353 0 0 0 1 > 16% 109 11 0 116 347 656 0 0 0 1 > 16% 123 5 0 127 308 369 0 0 0 1 > 20% 168 10 0 117 894 878 844 0 0 1 > 16% 115 5 0 143 331 543 0 0 0 1 > 16% 123 12 0 138 283 241 0 0 0 2 > 18% 147 9 0 131 623 1370 0 0 0 2 > 29% 364 7 0 183 2970 6333 0 0 0 2 > > As you can see, there is practicaly no network traffic. When I perform more load on Filer thrue HP server (such as tar or copy data on filer), the speed of writing on LTO is about 10 times faster: > > CPU NFS CIFS HTTP Net kB/s Disk kB/s Tape kB/s Cache > 76% 1093 41 0 388 23459 22188 1114 0 0 0 > 69% 1065 8 0 296 23111 22049 0 0 0 0 > 65% 735 6 0 342 20897 20332 0 0 0 0 > 58% 673 14 0 270 17603 17106 0 0 0 0 > 68% 869 48 0 257 22127 21323 0 0 0 0 > 82% 1020 50 0 7776 14957 13749 1315 0 0 0 > 77% 925 15 0 3213 13063 13185 8583 0 0 0 > 76% 1163 10 0 350 25681 24400 0 0 0 0 > 67% 986 63 0 389 19134 19058 0 0 0 0 > 68% 922 288 0 315 19461 18464 0 0 0 0 > 66% 943 101 0 248 20260 18998 0 0 0 0 > 75% 1067 9 0 277 23741 23182 458 0 0 0 > 79% 1025 14 0 270 22664 22671 4621 0 0 0 > 76% 891 24 0 236 26903 25523 0 0 0 0 > 80% 1064 164 0 314 26847 25485 0 0 0 0 > > > Do you have any idea what is going on? > > > Matej > > > > > > ---------------------------------------- > Matej Moškon > Our Space Appliances d.o.o. > Tbilisijska 59, 1111 Ljubljana > email: matej.moskon(a)ourspace.si > tel: + 386 01 24 25 392 > faks: + 386 01 24 25 382 > http://www.ourspace.si > ---------------------------------------- >

1 0

RE: Can Autosupport use multiple MailHosts?
by Mohler, Jeff 28 Jan '03

28 Jan '03

RR is half correct, use MX. Will ASUP honor MX tables???/ -----Original Message----- From: Alan McLachlan [mailto:amclachlan@asi.com.au] Sent: Monday, January 27, 2003 5:14 PM To: Borders, Rich Cc: toasters(a)mathworks.com Subject: RE: Can Autosupport use multiple MailHosts? Hi Rich, 10 Points for quick thinking, but Round Robin DNS is BAD BAD BAD - for nearly everything. Why? Because it doesn't do health checks or test responses. (just ask your own NetCache guys, Brian or Kurt or someone, about why they recommend L4-7 switches rather than RRDNS for load balancing web servers). If you have only one mailhost listed on the filer, it will only make one attempt to send the autosupport email. If that hostname is rotated via RRDNS to multiple real servers, then if one of those real servers fails 1/N autosupport emails (where N is the number of real servers) will fail to go anywhere. If that happens to be a critical message (i.e. major component failure or overheating), you don't want to be responsible for the message not getting through. Using multiple mailhosts in the list on the filer itself is much safer. regards, Alan McLachlan Senior Systems Engineer Storage Management Solutions NetAppCA#0000019, FCNE ASI Solutions www.asi.com.au Ph +61 2 6230 1566 Fax +61 2 6230 5343 Mobile +61 428 655644 e-mail amclachlan(a)asi.com.au -----Original Message----- From: Borders, Rich [mailto:Rich.Borders@netapp.com] Sent: Tuesday, 28 January 2003 5:48 AM To: 'Walter Ellinthorpe'; Chris Thompson Cc: toasters(a)mathworks.com; david.lugo(a)unitedmessaging.com Subject: RE: Can Autosupport use multiple MailHosts? Round robin dns would work also. Network Appliance Technical Support Engineer rborders(a)netapp.com Telephone: 1-919-993-5866 Hotline: 1-888-4-NETAPP Working Hrs.: SUNDAY - WEDNESDAY 7:00 AM to 6:00 PM EDT Get answers NOW! - Netapp On the Web - http://now.netapp.com <http://now.netapp.com/> Everyone at Network Appliance is committed to the highest level of customer satisfaction. If at any time you feel that you're less than very satisfied with our support please contact my manager Richard Bondranko at 919-993-5837 or rbond(a)netapp.com. -----Original Message----- From: Walter Ellinthorpe [mailto:walter.ellinthorpe@unitedmessaging.com] Sent: Monday, January 27, 2003 12:33 PM To: Chris Thompson Cc: toasters(a)mathworks.com; david.lugo(a)unitedmessaging.com Subject: Re: Can Autosupport use multiple MailHosts? Thanks, One more Question: the only way I was able to get autosupport to work when I set these filers up was to have an entry in the /etc/hosts file looking something like this.... 192.168.1.16 SMTP-A mailhost So, to use multiple smtp hosts, would I need to have entries like.... 192.168.1.16 SMTP-A mailhost 192.168.1.17 SMTP-B mailhost 192.168.1.18 SMTP-C mailhost 192.168.1.19 SMTP-D mailhost Thanks again, --Walter Chris Thompson wrote: walter.ellinthorpe(a)unitedmessaging.com <mailto:walter.ellinthorpe@unitedmessaging.com> (Walter Ellinthorpe) writes: I have NetApp Filers from Chicago to South Carolina and I use Autosupport to keep track of the health and happiness of each one. They all have multiple SMTP servers on their local LAN. 1. Can I configure the Filers to use multiple SMTP gateways (e.g. if SMTP-A fails, try SMTP-B. If SMTP-B fails try SMTP-C... etc.)? 2. If this CAN be done, how do I configure the Filers to do this? options autosupport.mailhost SMTP-A,SMTP-B,SMTP-C The na_options(1) man page says there can be up to five hosts in the comma-separated list. I have used it successfully with three. Chris Thompson Email: cet1(a)cam.ac.uk <mailto:cet1@cam.ac.uk> -- =============================================================== | Walter Ellinthorpe United Messaging Field Engineer | | Walter.Ellinthorpe(a)UnitedMessaging.com <mailto:Walter.Ellinthorpe@UnitedMessaging.com> (W) 703-234-5305 | | 13800 Coppermine Road Suite 279 Herndon, VA 20171 | **** ASI Solutions Disclaimer **** The material transmitted may contain confidential and/or privileged material and is intended only for the addressee. If you receive this in error, please notify the sender and destroy any copies of the material immediately. ASI will protect your Privacy according to the 10 Privacy Principles outlined under the new Privacy Act, Dec 2001. This email is also subject to copyright. Any use of or reliance upon this material by persons or entities other than the addressee is prohibited. E-mails may be interfered with, may contain computer viruses or other defects. Under no circumstances do we accept liability for any loss or damage which may result from your receipt of this message or any attachments. **** END OF MESSAGE ****

1 0

Re: On Board Fiber Channel performance
by Walter Ellinthorpe 28 Jan '03

28 Jan '03

Art, Do you know of any documentation that I can refer to for precise comparisons? Thanks for everything, --Walter Art Hebert wrote: >It is my understanding that you should stay away from the onboard fiber >port. You can buy cards pretty cheap on ebay > >art > > >-----Original Message----- >From: Walter Ellinthorpe [mailto:walter.ellinthorpe@unitedmessaging.com] >Sent: Monday, January 27, 2003 1:13 PM >To: toasters(a)mathworks.com >Cc: David Lugo >Subject: On Board Fiber Channel performance > > >I have Filers in several locations. My newest installation has a >noticeable DECREASE in performance. > >Of all the possible factors (OS version, network hardware/software >etc..) the only common denominator is that all of my previous >installations have filers with two PCI Fiber Channel Cards and the >filers in the new location use One PCI Fiber Channel card and one >On-Board Fiber Channel adapter. > >Are there any known issues with using the on-board Fiber Channel adapter >vs. PCI Fiber Channel adapters ?? > >Thanks in advance, > >--Walter Ellinthorpe > > > -- =============================================================== | Walter Ellinthorpe United Messaging Field Engineer | | Walter.Ellinthorpe(a)UnitedMessaging.com (W) 703-234-5305 | | 13800 Coppermine Road Suite 279 Herndon, VA 20171 |

1 0

RE: Can Autosupport use multiple MailHosts?
by Alan McLachlan 28 Jan '03

28 Jan '03

Hi Rich, 10 Points for quick thinking, but Round Robin DNS is BAD BAD BAD - for nearly everything. Why? Because it doesn't do health checks or test responses. (just ask your own NetCache guys, Brian or Kurt or someone, about why they recommend L4-7 switches rather than RRDNS for load balancing web servers). If you have only one mailhost listed on the filer, it will only make one attempt to send the autosupport email. If that hostname is rotated via RRDNS to multiple real servers, then if one of those real servers fails 1/N autosupport emails (where N is the number of real servers) will fail to go anywhere. If that happens to be a critical message (i.e. major component failure or overheating), you don't want to be responsible for the message not getting through. Using multiple mailhosts in the list on the filer itself is much safer. regards, Alan McLachlan Senior Systems Engineer Storage Management Solutions NetAppCA#0000019, FCNE ASI Solutions www.asi.com.au Ph +61 2 6230 1566 Fax +61 2 6230 5343 Mobile +61 428 655644 e-mail amclachlan(a)asi.com.au -----Original Message----- From: Borders, Rich [mailto:Rich.Borders@netapp.com] Sent: Tuesday, 28 January 2003 5:48 AM To: 'Walter Ellinthorpe'; Chris Thompson Cc: toasters(a)mathworks.com; david.lugo(a)unitedmessaging.com Subject: RE: Can Autosupport use multiple MailHosts? Round robin dns would work also. Network Appliance Technical Support Engineer rborders(a)netapp.com Telephone: 1-919-993-5866 Hotline: 1-888-4-NETAPP Working Hrs.: SUNDAY - WEDNESDAY 7:00 AM to 6:00 PM EDT Get answers NOW! - Netapp On the Web - http://now.netapp.com <http://now.netapp.com/> Everyone at Network Appliance is committed to the highest level of customer satisfaction. If at any time you feel that you're less than very satisfied with our support please contact my manager Richard Bondranko at 919-993-5837 or rbond(a)netapp.com. -----Original Message----- From: Walter Ellinthorpe [mailto:walter.ellinthorpe@unitedmessaging.com] Sent: Monday, January 27, 2003 12:33 PM To: Chris Thompson Cc: toasters(a)mathworks.com; david.lugo(a)unitedmessaging.com Subject: Re: Can Autosupport use multiple MailHosts? Thanks, One more Question: the only way I was able to get autosupport to work when I set these filers up was to have an entry in the /etc/hosts file looking something like this.... 192.168.1.16 SMTP-A mailhost So, to use multiple smtp hosts, would I need to have entries like.... 192.168.1.16 SMTP-A mailhost 192.168.1.17 SMTP-B mailhost 192.168.1.18 SMTP-C mailhost 192.168.1.19 SMTP-D mailhost Thanks again, --Walter Chris Thompson wrote: walter.ellinthorpe(a)unitedmessaging.com <mailto:walter.ellinthorpe@unitedmessaging.com> (Walter Ellinthorpe) writes: I have NetApp Filers from Chicago to South Carolina and I use Autosupport to keep track of the health and happiness of each one. They all have multiple SMTP servers on their local LAN. 1. Can I configure the Filers to use multiple SMTP gateways (e.g. if SMTP-A fails, try SMTP-B. If SMTP-B fails try SMTP-C... etc.)? 2. If this CAN be done, how do I configure the Filers to do this? options autosupport.mailhost SMTP-A,SMTP-B,SMTP-C The na_options(1) man page says there can be up to five hosts in the comma-separated list. I have used it successfully with three. Chris Thompson Email: cet1(a)cam.ac.uk <mailto:cet1@cam.ac.uk> -- =============================================================== | Walter Ellinthorpe United Messaging Field Engineer | | Walter.Ellinthorpe(a)UnitedMessaging.com <mailto:Walter.Ellinthorpe@UnitedMessaging.com> (W) 703-234-5305 | | 13800 Coppermine Road Suite 279 Herndon, VA 20171 | **** ASI Solutions Disclaimer **** The material transmitted may contain confidential and/or privileged material and is intended only for the addressee. If you receive this in error, please notify the sender and destroy any copies of the material immediately. ASI will protect your Privacy according to the 10 Privacy Principles outlined under the new Privacy Act, Dec 2001. This email is also subject to copyright. Any use of or reliance upon this material by persons or entities other than the addressee is prohibited. E-mails may be interfered with, may contain computer viruses or other defects. Under no circumstances do we accept liability for any loss or damage which may result from your receipt of this message or any attachments. **** END OF MESSAGE ****

1 0

RE: Permissions on Folder are incorrectly ordered error
by Kevin Skelly 27 Jan '03

27 Jan '03

I experienced this same issue with XCACLS when I was planning our file migration to our filers (from NetWare) about a year ago. XCACLS just doesn't do the job, so I used a utility called REACL.EXE to set the permissions instead. Highly recommended! -----Original Message----- From: Hight, Steve - Perot [mailto:SHight@chw.edu] Sent: Monday, January 27, 2003 11:35 AM To: 'toasters(a)mathworks.com' Subject: Permissions on Folder are incorrectly ordered error After migrating a lot of data I used xcacls.exe on a CIFS only filer to recursively set the permissions on a huge volume of home directories. I am now having the symptoms described in MS article http://support.microsoft.com/default.aspx?scid=kb;en-us;296865 <http://support.microsoft.com/default.aspx?scid=kb;en-us;296865> . When I view the permissions, I get the following error: The permissions on xxxx are incorrectly ordered, which may cause some entries to be ineffective. Click OK to continue and sort the permission correctly, or press CANCEL to reset the permissions. Microsoft Says: This problem can occur because Windows 2000 has introduced a new inheritance model in which directly applied access control entries (ACEs) have precedence over inherited ACEs. The computer implements this precedence by placing directly applied ACEs ahead of inherited ACEs in a discretionary access control list (DACL). Earlier versions of Microsoft Windows NT did not distinguish between inherited and directly applied ACEs. When you use Subinacl to set the permission to grant full permission, the ACE is put at the end of the access control list (ACL). Because the ACE is directly applied, when you view the permission in Registry Editor, you can receive an error message as the ACE must be placed ahead of the other inherited ACEs. Subinacl does not arrange the ACEs properly. Any ideas? Thank you, Steve Hight perotsystems

1 0

RE: Adding Disk to Volume
by Michael Schipp 27 Jan '03

27 Jan '03

Hi Steve, You can use these two commands the first will check to see if you need to reallocate and second will do the job :) wafl scan measure_layout <vol | file> wafl scan reallocate <vol | file> Thank you Michael A Schipp ASI Solutions IT LAN/WAN Administrator E-Mail : mschipp(a)asi.com.au Visit us at http://www.asi.com.au -----Original Message----- From: Steve Evans [mailto:sevans@foundation.sdsu.edu] Sent: Tuesday, 28 January 2003 4:59 AM To: toasters(a)mathworks.com Subject: Adding Disk to Volume Okay I know this has been brought up lately, but I'm not sure what the outcome of it was. I need to add a disk to my root volume. What should I do (or should I do anything) to spread the data across the new disk evenly? Steve Evans SDSU Foundation (619) 594-0653 **** ASI Solutions Disclaimer **** The material transmitted may contain confidential and/or privileged material and is intended only for the addressee. If you receive this in error, please notify the sender and destroy any copies of the material immediately. ASI will protect your Privacy according to the 10 Privacy Principles outlined under the new Privacy Act, Dec 2001. This email is also subject to copyright. Any use of or reliance upon this material by persons or entities other than the addressee is prohibited. E-mails may be interfered with, may contain computer viruses or other defects. Under no circumstances do we accept liability for any loss or damage which may result from your receipt of this message or any attachments. **** END OF MESSAGE ****

1 0

Permissions on Folder are incorrectly ordered error
by Hight, Steve - Perot 27 Jan '03

27 Jan '03

After migrating a lot of data I used xcacls.exe on a CIFS only filer to recursively set the permissions on a huge volume of home directories. I am now having the symptoms described in MS article http://support.microsoft.com/default.aspx?scid=kb;en-us;296865 <http://support.microsoft.com/default.aspx?scid=kb;en-us;296865> . When I view the permissions, I get the following error: The permissions on xxxx are incorrectly ordered, which may cause some entries to be ineffective. Click OK to continue and sort the permission correctly, or press CANCEL to reset the permissions. Microsoft Says: This problem can occur because Windows 2000 has introduced a new inheritance model in which directly applied access control entries (ACEs) have precedence over inherited ACEs. The computer implements this precedence by placing directly applied ACEs ahead of inherited ACEs in a discretionary access control list (DACL). Earlier versions of Microsoft Windows NT did not distinguish between inherited and directly applied ACEs. When you use Subinacl to set the permission to grant full permission, the ACE is put at the end of the access control list (ACL). Because the ACE is directly applied, when you view the permission in Registry Editor, you can receive an error message as the ACE must be placed ahead of the other inherited ACEs. Subinacl does not arrange the ACEs properly. Any ideas? Thank you, Steve Hight perotsystems

1 0

RE: Can Autosupport use multiple MailHosts?
by Borders, Rich 27 Jan '03

27 Jan '03

Round robin dns would work also. Network Appliance Technical Support Engineer rborders(a)netapp.com Telephone: 1-919-993-5866 Hotline: 1-888-4-NETAPP Working Hrs.: SUNDAY - WEDNESDAY 7:00 AM to 6:00 PM EDT Get answers NOW! - Netapp On the Web - http://now.netapp.com <http://now.netapp.com/> Everyone at Network Appliance is committed to the highest level of customer satisfaction. If at any time you feel that you're less than very satisfied with our support please contact my manager Richard Bondranko at 919-993-5837 or rbond(a)netapp.com. -----Original Message----- From: Walter Ellinthorpe [mailto:walter.ellinthorpe@unitedmessaging.com] Sent: Monday, January 27, 2003 12:33 PM To: Chris Thompson Cc: toasters(a)mathworks.com; david.lugo(a)unitedmessaging.com Subject: Re: Can Autosupport use multiple MailHosts? Thanks, One more Question: the only way I was able to get autosupport to work when I set these filers up was to have an entry in the /etc/hosts file looking something like this.... 192.168.1.16 SMTP-A mailhost So, to use multiple smtp hosts, would I need to have entries like.... 192.168.1.16 SMTP-A mailhost 192.168.1.17 SMTP-B mailhost 192.168.1.18 SMTP-C mailhost 192.168.1.19 SMTP-D mailhost Thanks again, --Walter Chris Thompson wrote: walter.ellinthorpe(a)unitedmessaging.com <mailto:walter.ellinthorpe@unitedmessaging.com> (Walter Ellinthorpe) writes: I have NetApp Filers from Chicago to South Carolina and I use Autosupport to keep track of the health and happiness of each one. They all have multiple SMTP servers on their local LAN. 1. Can I configure the Filers to use multiple SMTP gateways (e.g. if SMTP-A fails, try SMTP-B. If SMTP-B fails try SMTP-C... etc.)? 2. If this CAN be done, how do I configure the Filers to do this? options autosupport.mailhost SMTP-A,SMTP-B,SMTP-C The na_options(1) man page says there can be up to five hosts in the comma-separated list. I have used it successfully with three. Chris Thompson Email: cet1(a)cam.ac.uk <mailto:cet1@cam.ac.uk> -- =============================================================== | Walter Ellinthorpe United Messaging Field Engineer | | Walter.Ellinthorpe(a)UnitedMessaging.com <mailto:Walter.Ellinthorpe@UnitedMessaging.com> (W) 703-234-5305 | | 13800 Coppermine Road Suite 279 Herndon, VA 20171 |

1 0

Can Autosupport use multiple MailHosts?
by Walter Ellinthorpe 27 Jan '03

27 Jan '03

Dear Toasters, I have NetApp Filers from Chicago to South Carolina and I use Autosupport to keep track of the health and happiness of each one. They all have multiple SMTP servers on their local LAN. 1. Can I configure the Filers to use multiple SMTP gateways (e.g. if SMTP-A fails, try SMTP-B. If SMTP-B fails try SMTP-C... etc.)? 2. If this CAN be done, how do I configure the Filers to do this? Thanks, --Walter Ellinthorpe -- =============================================================== | Walter Ellinthorpe United Messaging Field Engineer | | Walter.Ellinthorpe(a)UnitedMessaging.com (W) 703-234-5305 | | 13800 Coppermine Road Suite 279 Herndon, VA 20171 |

2 3

Adding Disk to Volume
by Steve Evans 27 Jan '03

27 Jan '03

Okay I know this has been brought up lately, but I'm not sure what the outcome of it was. I need to add a disk to my root volume. What should I do (or should I do anything) to spread the data across the new disk evenly? Steve Evans SDSU Foundation (619) 594-0653

1 0

Re: Can Autosupport use multiple MailHosts?
by courier＠telica.com 27 Jan '03

27 Jan '03

Hello Walter, According to auto_support man page saying that yes it is. " autosupport.mailhost: Default is mailhost. Enter the list of mailhosts separated by "," and no spaces. Up to 5 hosts will be accepted. The autosupport mechanism will try to contact each listed host in turn until it gets a successful SMTP connection. The default mailhost address is set to the adminhost address in /etc/hosts with a command such as options autosupport.mailhost mercury,venus,mars " DO you know howto access your filer via http? here is how I accessing to it: http://toaster\na_admin, click on filer_view: Then put in username and password (Admin username and it password,) then click on Configure AutoSupport in there it has 5 slot for mailhost to be add on. Mine is only one, because we have only one SMTP mail server to go out. Your http web access might be different, because of the OS you have. I am still using DataOntap OS version: 6.1R1 Hopes that help. Vinh- > Dear Toasters, > I have NetApp Filers from Chicago to South Carolina and I use > Autosupport to keep track of the health and happiness of each one. They all have multiple SMTP servers on their local LAN. > > 1. Can I configure the Filers to use multiple SMTP gateways (e.g. if SMTP-A fails, try SMTP-B. If SMTP-B fails try SMTP-C... etc.)? 2. If this CAN be done, how do I configure the Filers to do this? > > Thanks, > > --Walter Ellinthorpe > -- > > =============================================================== > > | Walter Ellinthorpe United Messaging Field Engineer | > > | Walter.Ellinthorpe(a)UnitedMessaging.com > <mailto:Walter.Ellinthorpe@UnitedMessaging.com> (W) 703-234-5305 | > > | 13800 Coppermine Road Suite 279 Herndon, VA 20171 |

1 0

Backup performances
by matej.moskon＠ourspace.si 27 Jan '03

27 Jan '03

Hi toasters! I'm facing with very odd performance issue during the backup of snapshots. I have OmniBak Disk Agent instaled on HP-UX 11.0 and F740 DOT 6.0.1R3 when I start with backup procedure, the performances are as follow (sysstat 2): CPU NFS CIFS HTTP Net kB/s Disk kB/s Tape kB/s Cache 21% 179 12 0 113 1061 2205 0 0 0 1 19% 207 8 0 167 1153 1132 0 0 0 1 21% 127 8 0 114 555 1473 868 0 0 1 17% 128 51 0 118 514 525 0 0 0 1 16% 114 15 0 124 319 353 0 0 0 1 16% 109 11 0 116 347 656 0 0 0 1 16% 123 5 0 127 308 369 0 0 0 1 20% 168 10 0 117 894 878 844 0 0 1 16% 115 5 0 143 331 543 0 0 0 1 16% 123 12 0 138 283 241 0 0 0 2 18% 147 9 0 131 623 1370 0 0 0 2 29% 364 7 0 183 2970 6333 0 0 0 2 As you can see, there is practicaly no network traffic. When I perform more load on Filer thrue HP server (such as tar or copy data on filer), the speed of writing on LTO is about 10 times faster: CPU NFS CIFS HTTP Net kB/s Disk kB/s Tape kB/s Cache 76% 1093 41 0 388 23459 22188 1114 0 0 0 69% 1065 8 0 296 23111 22049 0 0 0 0 65% 735 6 0 342 20897 20332 0 0 0 0 58% 673 14 0 270 17603 17106 0 0 0 0 68% 869 48 0 257 22127 21323 0 0 0 0 82% 1020 50 0 7776 14957 13749 1315 0 0 0 77% 925 15 0 3213 13063 13185 8583 0 0 0 76% 1163 10 0 350 25681 24400 0 0 0 0 67% 986 63 0 389 19134 19058 0 0 0 0 68% 922 288 0 315 19461 18464 0 0 0 0 66% 943 101 0 248 20260 18998 0 0 0 0 75% 1067 9 0 277 23741 23182 458 0 0 0 79% 1025 14 0 270 22664 22671 4621 0 0 0 76% 891 24 0 236 26903 25523 0 0 0 0 80% 1064 164 0 314 26847 25485 0 0 0 0 Do you have any idea what is going on? Matej ---------------------------------------- Matej Moškon Our Space Appliances d.o.o. Tbilisijska 59, 1111 Ljubljana email: matej.moskon(a)ourspace.si tel: + 386 01 24 25 392 faks: + 386 01 24 25 382 http://www.ourspace.si ----------------------------------------

2 1

[Fwd: CORR PROC ERR 86]
by Dan OBrien 27 Jan '03

27 Jan '03

Resend due to list errors last week. -- Dan O'Brien, dmobrien(a)lcsi.net Cell: 614-783-4859 Work: 614-476-8473 Home: 740-927-2178 Pataskala, OH

2 1

RE: Filer setting tcp.wsize to 0 -> NFS timeouts
by Aldrich David S 24 Jan '03

24 Jan '03

Here's the description and workaround from NOW for Bug ID 29146. It might help with your problem. Description: In Data ONTAP 5.3.4 and earlier releases the default UDP transfer size is 8192. In 5.3.5 and later releases the default is 32768. This larger value improves performance in some situations, but may cause problems in others. Problem 1 - 100-Mbit client is reading from Gigabit interface With the larger default, problems may result when the Gigabit interface on the filer is sending to a 100-Mbit client. Switches can drop packets on the outbound 100-Mbit port because too many packets become queued due to the difference in line speeds and the larger transfer size. Few complete 32K UDP datagrams are received by the client, and the client assumes the filer has gone away and increases its delay between retries. Poor performance may be seen. If a client does not specify the rsize and wsize parameters in the mount command, the filer's default UDP transfer size is used. If a client does specify rsize and wsize, and the values are larger than the default, then the default is used. This means that you may see problems after you upgrade from 5.3.4 (or earlier release) to 5.3.5 (or later release) if the resulting transfer size is 32768. Problem 2 - Multiple clients are reading from 100-Mbit interface When the UDP transfer size is 32768 and multiple clients are reading from a 100-Mbit interface, the driver transmit queue on the filer can overflow more readily and packets may be discarded. This can lead to erratic or poor performance on the clients. Workaround: If you have only 100-Mbit clients, the easiest workaround is to change the default UDP transfer size on the filer. First, display the current value: options nfs.udp.xfersize If the value displayed is greater than 8192, then change the value: options nfs.udp.xfersize 8192 If you have both Gigabit and 100-Mbit clients, instead of doing the above you may just want to insert "rsize=8192,wsize=8192" into the mount commands on your 100-Mbit clients and set the filer's default transfer size to 32768. By doing this, the Gigabit clients can benefit from the larger transfer size. If you have only Gigabit interfaces on the filer and the clients, the default UDP transfer size can be set to 32768 to improve performance. Regardless of the transfer size, if you have Sun clients with Sun Gigabit/2.0 NICs, you should enable transmit flow control on the Sun NIC and ensure that receive flow control is enabled on the switch port. The Sun Gigabit/2.0 NIC drops packets because it can't keep up with the filer. In such situations, enabling flow control can substantially improve performance. If you are using an FDDI interface in the filer and a UDP transfer size of 32768, you might want to make sure that all FDDI clients attached to the ring can handle the larger burst in traffic due to the increased transfer size. Dave -----Original Message----- From: Jeff Bryer [mailto:bryer@sfu.ca] Sent: Friday, January 24, 2003 12:47 PM To: Pawel Rogocz Cc: toasters(a)mathworks.com Subject: Re: Filer setting tcp.wsize to 0 -> NFS timeouts We've experienced the same behaviour. On two separate systems. An F740 running 6.1.2R3 connected to a 420R running Sol 8 using a SUN GigE card. And on an F810 running 6.2.1R2 connected to a V880 running Sol 8 using the onboard GigE port. We've switched to running NFS v3 over UDP on the F740 (which is the only GigE we have in production on our NetApps). We haven't had any performance issues since. This filer is housing DB/2. We do have a co-locate F740 connected via GigE to a Linux RedHat machine, but it has only ever been configured to use NFS v2 over UDP with an 8K window size. There is some interest to switch it over to TCP to see if the problems with reducing window size happen there. On Thu, Jan 23, 2003 at 10:49:49PM -0800, Pawel Rogocz wrote: > I have been having NFS performance problems with our F820 / 6.2.1R2 > for quite some time now. The filer has a GigE card, but when we start > pushing about 10MB/sec ( 50 % CPU load ) we get numerous NFS timeouts from solaris > clients mounting the filer via tcp. None of the filer stats (statit et all) > show any bottleneck on any of the disks. > Looking at network traces from a mirrored port, I see the filer > at some point reducing tcp window size to 0, down from its normal > value - 26280. Looks like it is running out of juice. > Any ideas what might be causing this ? > > > Pawel > > > - -- Jeff Bryer bryer(a)sfu.ca Systems Administrator (604) 291-4935 Academic Computing, Simon Fraser University

1 0

UDP vs. TCP
by Charles Bartels 24 Jan '03

24 Jan '03

> We've switched to running NFS v3 over UDP on the F740 (which is the > only GigE we have in production on our NetApps). We haven't had > any performance issues since. This filer is housing DB/2. What are the pros/cons of running UDP as opposed to TCP ? UDP doesn't have the same error correction, ja? Isn't that inherently unstable or dangerous? -Charles Bartels

1 0

Filer setting tcp.wsize to 0 -> NFS timeouts
by Pawel Rogocz 24 Jan '03

24 Jan '03

I have been having NFS performance problems with our F820 / 6.2.1R2 for quite some time now. The filer has a GigE card, but when we start pushing about 10MB/sec ( 50 % CPU load ) we get numerous NFS timeouts from solaris clients mounting the filer via tcp. None of the filer stats (statit et all) show any bottleneck on any of the disks. Looking at network traces from a mirrored port, I see the filer at some point reducing tcp window size to 0, down from its normal value - 26280. Looks like it is running out of juice. Any ideas what might be causing this ? Pawel -

2 1

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

toasters