toasters

toasters@lists.teaparty.net

13531 discussions

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

RE: disappearing CIFS permissions ...
by Waters, G Scott DSTI 24 Jan '03

24 Jan '03

We were running 6.2R2 since it was released and we were seeing the problem occasionally. We recently (in the last week) upgraded to 6.2.2 - it hasn't been in place long enough to say if things have changed. - Scott W. -----Original Message----- From: Nail, Larry [mailto:lnail@ti.com] Sent: Friday, January 24, 2003 11:01 AM To: 'toasters(a)mathworks.com' Subject: RE: disappearing CIFS permissions ... Scott, We had the same set of problems when we were running 5.3.7 on the filers... when we upgraded to 6.x, we stopped seeing those problems. The only problem we did resolve was we had a share name "L&I". When we renamed the share to LnI, it stopped dropping it's permissions. Larry -----Original Message----- From: Waters, G Scott DSTI [mailto:george.scott.waters@us.army.mil] Sent: Friday, January 24, 2003 9:32 AM To: 'toasters(a)mathworks.com' Subject: disappearing CIFS permissions ... Has anyone had any problems with setting CIFS share permissions and then having them disappear?? We have a series of scripts that run at night that manage our users in our NT4 domain. Our users are created and then for each user a home share is created on our filer. Every once in a while we will get a complaint that one of our new users can not access their home share. I check the share and sure enough the permissions are not there. However, when I check the output from our scripts they show that the permissions were set successfully. The user is created in the script by using the NET USER command and the shares are manipulated by the RMTSHARE program from the NT Resource Kit. After the user is created Domain Admins are granted permissions to the SHARE (and those permissions are always there) then the user is granted permissions (and that is where the problem occasionally occurs). It's an annoyance that I can't explain ... and I don't like those. If anyone has any ideas / suggestions / etc, etc ... please let me know. Thanks. - Scott W.

1 0

RE: disappearing CIFS permissions ...
by Waters, G Scott DSTI 24 Jan '03

24 Jan '03

Stacie ... The QTree is NTFS. The script runs on the domain controller and sets share permissions on the filer ... and the problem is *very* intermittent. - Scott W. -----Original Message----- From: sjmontoya [mailto:sjmontoya@micron.com] Sent: Friday, January 24, 2003 11:02 AM To: 'Waters, G Scott DSTI'; 'toasters(a)mathworks.com' Subject: RE: disappearing CIFS permissions ... Scott, What type is assigned to the qtree that is being shared out as CIFS? Where is your script granting the user permissions? On the NetApp itself? Or from NT? I have recently been setting up CIFS shares from qtrees that are "mixed". What I have noticed is that permissions changes made on the UNIX side show up in the NT ACLs and vice versa. I've also noticed that "Special permissions" are given in the case where the user might not be in the NT group that has been given permissions, but is in the UNIX group that owns the file/directory. Stacie Montoya

1 0

RE: disappearing CIFS permissions ...
by Nail, Larry 24 Jan '03

24 Jan '03

Note this was a CIFS only filer in this case. -----Original Message----- From: Nail, Larry Sent: Friday, January 24, 2003 10:01 AM To: 'toasters(a)mathworks.com' Subject: RE: disappearing CIFS permissions ... Scott, We had the same set of problems when we were running 5.3.7 on the filers... when we upgraded to 6.x, we stopped seeing those problems. The only problem we did resolve was we had a share name "L&I". When we renamed the share to LnI, it stopped dropping it's permissions. Larry -----Original Message----- From: Waters, G Scott DSTI [mailto:george.scott.waters@us.army.mil] Sent: Friday, January 24, 2003 9:32 AM To: 'toasters(a)mathworks.com' Subject: disappearing CIFS permissions ... Has anyone had any problems with setting CIFS share permissions and then having them disappear?? We have a series of scripts that run at night that manage our users in our NT4 domain. Our users are created and then for each user a home share is created on our filer. Every once in a while we will get a complaint that one of our new users can not access their home share. I check the share and sure enough the permissions are not there. However, when I check the output from our scripts they show that the permissions were set successfully. The user is created in the script by using the NET USER command and the shares are manipulated by the RMTSHARE program from the NT Resource Kit. After the user is created Domain Admins are granted permissions to the SHARE (and those permissions are always there) then the user is granted permissions (and that is where the problem occasionally occurs). It's an annoyance that I can't explain ... and I don't like those. If anyone has any ideas / suggestions / etc, etc ... please let me know. Thanks. - Scott W.

1 0

RE: disappearing CIFS permissions ...
by sjmontoya 24 Jan '03

24 Jan '03

Scott, What type is assigned to the qtree that is being shared out as CIFS? Where is your script granting the user permissions? On the NetApp itself? Or from NT? I have recently been setting up CIFS shares from qtrees that are "mixed". What I have noticed is that permissions changes made on the UNIX side show up in the NT ACLs and vice versa. I've also noticed that "Special permissions" are given in the case where the user might not be in the NT group that has been given permissions, but is in the UNIX group that owns the file/directory. Stacie Montoya -----Original Message----- From: Waters, G Scott DSTI [mailto:george.scott.waters@us.army.mil] Sent: Friday, January 24, 2003 8:32 AM To: 'toasters(a)mathworks.com' Subject: disappearing CIFS permissions ... Has anyone had any problems with setting CIFS share permissions and then having them disappear?? We have a series of scripts that run at night that manage our users in our NT4 domain. Our users are created and then for each user a home share is created on our filer. Every once in a while we will get a complaint that one of our new users can not access their home share. I check the share and sure enough the permissions are not there. However, when I check the output from our scripts they show that the permissions were set successfully. The user is created in the script by using the NET USER command and the shares are manipulated by the RMTSHARE program from the NT Resource Kit. After the user is created Domain Admins are granted permissions to the SHARE (and those permissions are always there) then the user is granted permissions (and that is where the problem occasionally occurs). It's an annoyance that I can't explain ... and I don't like those. If anyone has any ideas / suggestions / etc, etc ... please let me know. Thanks. - Scott W.

1 0

RE: disappearing CIFS permissions ...
by Nail, Larry 24 Jan '03

24 Jan '03

Scott, We had the same set of problems when we were running 5.3.7 on the filers... when we upgraded to 6.x, we stopped seeing those problems. The only problem we did resolve was we had a share name "L&I". When we renamed the share to LnI, it stopped dropping it's permissions. Larry -----Original Message----- From: Waters, G Scott DSTI [mailto:george.scott.waters@us.army.mil] Sent: Friday, January 24, 2003 9:32 AM To: 'toasters(a)mathworks.com' Subject: disappearing CIFS permissions ... Has anyone had any problems with setting CIFS share permissions and then having them disappear?? We have a series of scripts that run at night that manage our users in our NT4 domain. Our users are created and then for each user a home share is created on our filer. Every once in a while we will get a complaint that one of our new users can not access their home share. I check the share and sure enough the permissions are not there. However, when I check the output from our scripts they show that the permissions were set successfully. The user is created in the script by using the NET USER command and the shares are manipulated by the RMTSHARE program from the NT Resource Kit. After the user is created Domain Admins are granted permissions to the SHARE (and those permissions are always there) then the user is granted permissions (and that is where the problem occasionally occurs). It's an annoyance that I can't explain ... and I don't like those. If anyone has any ideas / suggestions / etc, etc ... please let me know. Thanks. - Scott W.

1 0

disappearing CIFS permissions ...
by Waters, G Scott DSTI 24 Jan '03

24 Jan '03

Has anyone had any problems with setting CIFS share permissions and then having them disappear?? We have a series of scripts that run at night that manage our users in our NT4 domain. Our users are created and then for each user a home share is created on our filer. Every once in a while we will get a complaint that one of our new users can not access their home share. I check the share and sure enough the permissions are not there. However, when I check the output from our scripts they show that the permissions were set successfully. The user is created in the script by using the NET USER command and the shares are manipulated by the RMTSHARE program from the NT Resource Kit. After the user is created Domain Admins are granted permissions to the SHARE (and those permissions are always there) then the user is granted permissions (and that is where the problem occasionally occurs). It's an annoyance that I can't explain ... and I don't like those. If anyone has any ideas / suggestions / etc, etc ... please let me know. Thanks. - Scott W.

1 0

RE: Spare disks and SnapRestore
by Alan McLachlan 24 Jan '03

24 Jan '03

Actually, spares don't count as far as the software limits are concerned. Data Ontap will prevent you adding disks to a live volume if you are hitting the volume or total filer storage limits, but the number of hot spares is only limited by the available id's on the FCAL loop. Tested on Data OnTap 6.2.2 and Data Ontap 6.3 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: Jacek Nogala [mailto:jacek.nogala@solidex.com.pl] Sent: Thursday, 23 January 2003 9:16 PM To: toasters(a)mathworks.com Cc: Charles Bartels Subject: ODP: Spare disks and SnapRestore > The first is regarding spare disks. I'm going to have a fully loaded F810 soon; > 2 shelves with a total of twenty-one 72GB drives. Since I will have spare slots > in the shelves I was wondering if I can setup the netapp with a 22nd drive as a > hot-spare instead of "wasting" one out of my 21 disk pool. The specs on the F810 > say it maxes out at 1.5 TB raw which I will be hitting with the 21 drives. AFAIK 1.5 TB storage limit includes all installed disks. It means that 22 disk configuration for F810 is definitely not supported by NetApp and it is probably not working (some limits are enforced with Data ONTAP - I am not sure if this as well). > And a much more general question; what does SnapRestore do? > I believe this is a separately licensed option and I haven't > really been able to glean too much from the Netapp website. SnapRestore enables you instant reversion to the selected snapshot state of the whole volume (all Data ONTAPs) or single file (Data ONTAP 6.2 or later). "Instant" means without copying data. Actually only necessary pointers are copied. You have to be aware of the following drawbacks: - It is one-way trip (you are loosing all SnapShot copies that were collected after the SnapShot that you selected for reversion). - SnapRestoring of single file has negative performance impact (this operation causes fragmentation of WAFL file system). I hope this helps. Best regards, Jacek Nogala --------------------------------------------------------------------------- Jacek Nogala __________ Inzynier Konsultant /______/__/ Al. Jerozolimskie 65/79 NetApp Certified Professional (Filer) _\____\___/ 00-697 Warszawa, Poland jacek.nogala(a)solidex.com.pl /______/__/ Tel: +48 (22) 630 66 11 http://www.solidex.com.pl SOLIDEX S.A. Fax: +48 (22) 630 66 13 --------------------------------------------------------------------------- **** 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

Spare disks and SnapRestore
by Charles Bartels 23 Jan '03

23 Jan '03

Hi, I have a couple of questions. The first is regarding spare disks. I'm going to have a fully loaded F810 soon; 2 shelves with a total of twenty-one 72GB drives. Since I will have spare slots in the shelves I was wondering if I can setup the netapp with a 22nd drive as a hot-spare instead of "wasting" one out of my 21 disk pool. The specs on the F810 say it maxes out at 1.5 TB raw which I will be hitting with the 21 drives. And a much more general question; what does SnapRestore do? I believe this is a separately licensed option and I haven't really been able to glean too much from the Netapp website. Thanks. -Charles Bartels

2 1

ASSIST ME PLEASE
by victor nnadi 23 Jan '03

23 Jan '03

VICTOR NNADI & CO BLOCK 804-LAW HOUSE BUILDING, LEGAL PRACTITIONERS/NOTARY PUBLIC) LAGOS-NIGERIA E-mail-victor.nnadi(a)caramail.com DEAR SIR, IT IS MY PLEASURE TO WRITE YOU THIS LETTER IRRESPECTIVE OF THE FACT THAT YOU DO NOT KNOW ME. HOWEVER, I GOT YOUR NAME THROUGH YOUR COUNTRY BUSSINESS ATTACHEE HERE IN MY SEARCH FOR A RELIABLE AND TRUST WORTHY PERSON THAT CAN HANDLE SUCH A CONFIDENTIAL TRANSACTION OF THIS NAURE. I AM BARRISTER VICTOR NNADI , A FAMILY LAWYER TO OUR LATE MILITARY RULER, GENERAL SANI ABACHA WHO DIED SUDDENLY IN POWER ON THE 8TH OF JUNE 1998. SINCE HIS UNTIMELY DEMISE THE FAMILY HAS SUFFERED A LOT OF HARRASSMENT FROM THE REGIME THAT SUCCEEDED HIM.THE REGIME AND THE CIVILIAN. RECENTLY, THE WIFE WAS BANNED FROM TRAVELLING OUTSIDE NIGERIA BEING A FALL OUT FROM THE SEIZURE OF 38 SUIT CASES CONTAINING CASH MONEY (800 eight hundred million USD) FROM HER AT THE MURTALA MOHAMMED INTERNATIONAL AIRPORT ON HER WAY TO SAUDI ARABIA. ALSO HUGE AMOUNT OF MONEY HAS BEEN RECOVERED FROM HER SON WHO IS IN INCARCERATION NOW. THERE ARE STILL LARGE AMOUNT OF MONEY IN HARD CURRENCY SAVED WITH SOME SECURITY COMPANIES OUTSIDE NIGERIA AND MRS ABACHA HAS SHOW ME DOCUMENTS OF WHERE THEY DEPOSITED USD 35.5MILLION IN A SECURITY VAULT FOR SAFE KEEPING. HOWEVER, THE FAMILY IS NOW BANKRUP FOLLOWING THE INCARCRATION OF MOHAMMED HER SON WHO WAS CHARGED FOR THE MURDER OF KUDIRAT ABIOLA THE WIFE OF LATE CHIEF MOSHOOD ABIOLA, RECENTLY THE FAMILY APPROACHED ME TO GET A RELIIABLE PERSON WHO WILL CLAIM THE MONEY ON OUR BEHALF IN THE SECURITY COMPANNY. THIS MONEY IS ALREADY IN (EUROPE) AND IT IS DEPOSITED IN DIPLOATIC BOXES, AS ARTIFACTS AND PERSONAL EFFECTS.IT IS ONLY BOTH OF US THAT KNOW IT CONTAINS CASH MONEY. IF YOUR CONDITIONS ARE ACCEPTABLE, WE WILL PREPARE YOU AS THE BENEFICIARY OF THE BOXES. WE HAVE ALL THE DOCUMENTSWITHS US.THE SECURITY COMPANY IN EUROPE HAVE CALLED US TO DO SOMETHING ABOUT CLAIMING THESE BOXES WHICH WE HAVE EXPLAINED TO THEM THAT WE SHALL GET IN TOUCH WITH THEM AS SOON AS POSSIBLES.REMEMBER THAT WE ARE MAKING THIS CONTACT BECAUSE WE CANNOT LEAVE THE COUNTRY UNTILL AFTER THE COURT CASES. NOTE: THERE IS NO RISK INVOLVED BECAUSE I AM ALSO INVOLED AS THE ABACHAS ATTORNEY. THEREFORE, CONTACT ME ON MY DIRECT EMAIL ADDRESS AS STATED ABOVE. PLEASE, IF YOU ARE NOT INTERESTED JUST DESTROY THIS INFORMATION, AS THIS IS A TOP SECRET.WE SHALL BE PREPARED TO DO MORE BUSINESS WITH YOU AT THE END OF THIS TRANSACTION. I AWAIT YOUR URGENT RESPONSE. BEST REGARDS, BARR.VICTOR NNADI. _________________________________________________________ Gagne une PS2 ! Envoie un SMS avec le code PS au 61166 (0,35 Hors coût du SMS)

1 0

snapmirror priority?
by Joseph Bishop 22 Jan '03

22 Jan '03

Morning folks, Does anyone know how to set the priority of a snapmirror build? I am looking for an option like the RAID Reconstruct priority. Any ideas? Joe Joseph Bishop ICIS Data Access Services (DTA) joseph.bishop(a)jpl.nasa.gov voice (818) 354-9539 pager 8864354(a)skytel.com The personal and professional opinions expressed are mine alone, and do not represent JPL in any way.

1 0

Jump to page:

2026

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