toasters

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13529 discussions

RE: NOW website down?
by La Londe, Renee 01 Aug '00

01 Aug '00

Hi All, As requested, we have modified our "downtime" statement to make it clear when the NOW site is down for scheduled downtime or due to technical difficulties . Also we posted our scheduled downtime information in a link off of the NOW home page (located at the bottom). In the near future we will be moving away from monthly releases and will move towards quarterly releases-which equates to more uptime for our users. When this happens the downtime information will be updated with this information accordingly. http://now.netapp.com/public/downtime.shtml Thanks, Renee Get Answers on NOW (Netapp on the Web)! http://now.netapp.com --- Renee.LaLonde(a)netapp.com wrote: > > > Hi Everyone, > > The planned downtime window for "routine > upgrades/maintenance" to NOW is > actually scheduled only during late hours (US PDT) > on Saturdays. > We picked Saturday nights based upon the small > amount of web traffic that occurs > during this period so that we can minimize the > impacts to our customers. > > The outage that we experienced yesterday was due to > internal networking issues > and was not a "planned" outage. However, our > standard "planned downtime" > message below was displayed. We will look at making > this message more > representative of the issue at hand. > > Thanks for your feedback. If you have any > questions/further input please feel > free to send me an email directly. > > Best Regards, > > Renee La Londe > renee(a)netapp.com > E-Service Web Manager > Get Answers on NOW (Netapp on the Web)! > http://now.netapp.com > > > > -----Original Message----- > From: Jeff Innis [mailto:figaro911@hotmail.com] > Sent: Tuesday, July 18, 2000 4:51 PM > To: toasters(a)mathworks.com > Subject: NOW website down? > > > Seems the NOW website is down for "routine" > maintenance. Seems strange to be > having routine maintenance during what is still > business hours here on the > West Coast. Ok, not trying to be US centric but I'am > sure that most of > Netapps sales are from US based businesses, so it > would seem to be sensible > to do this during "off" hours, 2:00am EDT sounds > good. Comments from Netapp > folks? > > > J > > > > The NOW website will be > inaccessible due to routine > maintenance. > We apologize for the > inconvenience. > > To download software, please go to > download.netapp.com. > > The Global Support Center can be > reached during this time > (and at > all times) by the phone numbers > below: > > 1-888-4NETAPP (toll free > within U.S.) > 1-408-822-4700 (direct dial > from elsewhere) > 00 800 44 NETAPP (for > countries with UIFN; > toll-free) > +31 23 5679605 (for all > other countries; int'l call > r > > > ________________________________________________________________________ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com ===== Yours, Eyal Traitel eTraitel(a)yahoo.com, Home: 972-3-5290415 (Tel Aviv) *** eTraitel - it's the new eBuzzword ! *** __________________________________________________ Do You Yahoo!? Get Yahoo! Mail - Free email you can access from anywhere! http://mail.yahoo.com/

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RE: What about SSH
by Mike Sphar 31 Jul '00

31 Jul '00

If you're running Data ONTAP 5.3 or later, check the man page for SecureAdmin. Just go to http://[Your_Filer_name]/na_admin/man/na_secureadmin.1.html -- Mike Sphar - Sr Systems Administrator - Engineering Support Services, BOFH, GWP, MCP, MCP+I, MCSE, BFD -----Original Message----- From: Jay Orr [mailto:orrjl@stl.nexen.com] Sent: Monday, July 31, 2000 12:44 PM To: toasters(a)mathworks.com Subject: What about SSH Is there any way to use SSH to get to a server, so the password isn't broadcast over the network? If not, is there any other authentication method, or is it just straight telnet and console connections? ----------- Jay Orr Systems Administrator Fujitsu Nexion Inc. St. Louis, MO

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Virtual Interfaces and direct connections to servers
by David Lockwood 31 Jul '00

31 Jul '00

Has anybody had any experience of connecting UNIX servers directly to a NetApp filer and using Virtual Interfaces to get a broader bandwidth. I want to be able to bypass a network switch and use software on the UNIX box that will 'trunk' the UNIX servers network ports together? ---------------------------------------------------------------------- For further information on Benetton Formula 1 visit our web site at www.benettonf1.com. This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please destroy and notify Benetton Formula on +44 1608678000. ----------------------------------------------------------------------

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RE: Visio Stencils for NetApp filers
by Smart, Steve 31 Jul '00

31 Jul '00

http://now.netapp.com/NOW/cgi-bin/software/ The the link on bottom right of thep age will get you to the Visio stencil area. S -----Original Message----- From: David Lockwood [mailto:David.Lockwood@benettonformula.com] Sent: 31 July 2000 11:57 To: toasters(a)mathworks.com Subject: Visio Stencils for NetApp filers Does anyone know where I can get some Visio stencils for NetApp filers. I am particularly interested in a Stencil for the front and rear of an F740. ---------------------------------------------------------------------- For further information on Benetton Formula 1 visit our web site at www.benettonf1.com. This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please destroy and notify Benetton Formula on +44 1608678000. ----------------------------------------------------------------------

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Visio Stencils for NetApp filers
by David Lockwood 31 Jul '00

31 Jul '00

Does anyone know where I can get some Visio stencils for NetApp filers. I am particularly interested in a Stencil for the front and rear of an F740. ---------------------------------------------------------------------- For further information on Benetton Formula 1 visit our web site at www.benettonf1.com. This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please destroy and notify Benetton Formula on +44 1608678000. ----------------------------------------------------------------------

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RE: Netapp filesystem failure rate
by Mohler, Jeff 31 Jul '00

31 Jul '00

Lets add in 'environmentals' too. Ive been on site and seen: 120d ambient temp machine rooms. Racks with running filers being moved across a room by hammering a pipe at the base of the rack. Shelves dropped. Drives dropped. Heads dropped. A & B power supplies all on the same curcuit (causes FCAL brown out badness in a lot of cases) Leaky styrofoam cups placed on the filer head. Drives SLAMMED home when replaced/installed by customer. Stripped screws securing a shelf having the heads hammered off with a chisel..with the shelf/drives still spinning ..and the winner... ...a serial cable in place of a FCAL jumper cable. -----Original Message----- From: Bruce Sterling Woodcock [mailto:sirbruce@ix.netcom.com] Sent: Monday, July 31, 2000 1:18 AM To: Mohler,Anissa; 'Brian Tao' Cc: toasters(a)mathworks.com Subject: Re: Netapp filesystem failure rate > As far as actual field numbers... I really don't know ;( Actual field numbers would no doubt be greater, since you are dealing with a wider variety of drives over history (presumably some less reliable than the current ones) and you also have some rare software / firmware bugs that probably necessitated a restore once or twice. Bruce

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Netapp filesystem failure rate
by Brian Tao 30 Jul '00

30 Jul '00

Does Netapp have any numbers that they could share publically on how often they see filesystem failures in the field (i.e., double disk failure, spare drive bug, etc.) that would require restoring all the data from tape? I did a quick count in my head and figured we have roughly 21 filer-years of operation (1 filer running for 3 years, 2 for 2.5 years, etc.) without a catastrophic failure yet. Is the actual observed number more like 50 filer-years? 100? 200? -- Brian Tao (BT300, taob(a)risc.org) "Though this be madness, yet there is method in't"

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Remove me from this alias please
by meadsoft＠infonet.ca 30 Jul '00

30 Jul '00

Remove me from this alias please.

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RE: Performance probs with UDP NFSv3. (and other pertinent questions)
by mds＠gbnet.net 29 Jul '00

29 Jul '00

I'd put money on the client-side options in /etc/system (or ndd equivs in scripts) not being raised high enough. We've discussed these Solaris tunables to death before now. A good document on them can be found here: http://www.rvs.uni-hannover.de/people/voeckler/tune/EN/tune.html I also have a question stemming from this discussion; first, some background: Oracle, and other db's I presume, keep a lot of data in memory. They arrange to have parts of tables in memory according to their use patterns, if at all possible. Solaris, as with most modern Unixen, has a filesystem buffer-cache that keeps small writes (and probably also large writes) and reads in memory that's not part of the user-process space, and isn't AFAIK shared with the user-process space. It's possible in Sol2.6-7 to use priority-paging to alleviate the buffer- cache competition for process memory. Solaris 8 has a different memory model. Either way the problem doesn't go away, it just bites less hard and fast. Now (I'm getting there!) VxFS, UFS (since Sol2.6), and raw-disk devices (or Disksuite metadevices or VxVM volumes) all allow for DirectIO or raw IO. The goal being *not* to double-cache database files. The DBMS is better at cacheing database data and more system RAM can be used constructively by the DBMS if there's less buffer-cache competing. It also saves lots of double-copies between the buffer-cache and user process space. As an aside VxFS allows 'discovered' DirectIO which means Oracle's small writes can still cause a problem. What I want to know, and what I have yet to have clarified for me, is: 1) are NFS files buffer-cached? (I believe they are) and, 2) is there anything that can be done to moderate the buffer-cache competition (other than priority-paging), and/or alleviate the double-copying that this implies. Also, given that on Solaris I'm informed that nothing short of an obscure fcntl() call can ensure data is flushed from a file back to the server, just how do databases maintain their ACID transaction semantics? Do you need log sections on local disk regardless? I feel I should know this stuff, being an old hand now on the list, but it occurred to me that I still don't have all the answers. Sorry if this was a little incoherent, not entirely sober and alert right now, I might have missed something obvious. -- -Mark ... an Englishman in London ...

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RE: Performance probs with UDP NFSv3.
by jeff.mohler＠netapp.com 28 Jul '00

28 Jul '00

If I had to GUESS here..I would say that the GigE to FastE conversion -might- be the issue with large transmit windows (v3). UDP has no throttle methodology built in like TCP does...and you could be overrunning the conversion process. More stats would help..but im only guessing. The Gig to FastE issue isnt perhaps the best way to do this at all, but will work given you dont overrun the switching mechanism. Now if this were a <xxx> to FDDI, I would be concerned, because the packet fragmentation and reconstruction will easily override most switches. -----Original Message----- From: Krishnan Prabhakar [mailto:kpkar@netapp.com] Sent: Friday, July 28, 2000 12:55 PM To: foo+netapp(a)eek.org Cc: toasters(a)mathworks.com Subject: Re: Performance probs with UDP NFSv3. > The network at the moment is like this: > > [760] flow-control need to be turned ON > | > Gig-e > | > | > [Foundry FastIron] flow-control need to be turned ON on the port > | > | > 100Mb/s Ethernet > | > | > [Foundry FastIron] flow-control need to be turned ON > | > | > Gig-e > | flow-control need to be turned ON > [Sun e4500] i guess the bottle-neck is the 100bt inbetween 10x faster Gig-e links on both-sides. ( FastIron cant forward the packets through 100Mb/s port as fast as it receives packets through 1000Mb/s port ie. from filer/e4500) Usually its done the otherway ( 100bt -- 1000sx pipe - 100bt ) the above network topology is not 'appropriate' for a server network! i guess there should be lots of 'dropped'/retransmits at the both ends ( 'netstat -s' ) Note : this is my first guess based on the info. in this thread. > > > The reason for the 100Mb in between is that for the moment the 4500 and > the filer are in different parts of a building (power issues prevent > having them in the same place) which is connected via 100Mb. > > That said, I spent a lot of time looking at the switches and network to > see if it was causing the problems. The fast ethernet interface has never > gone above around 30Mb or so, there are no errors of any kind of any of > the ints (no collisions, no align/fcs/giant/short, nothing *at all*). > Everything is full-duplex, flowcontrol is off on everything (any thoughts > about that?), all of the cabling was tested before installation... in > short, the network looks right. > > Eventually the filer and DB will be connected directly to each other, but > I have trouble believing that this will solve the current problems > considering there is currently no congestion in the network. > > The DB has all of the recent patches, but no optimization has been done. > > What am I missing? > > -Brian > > foo wrote: > > Has anyone else experienced performance problems using UDP NFSv3 between > > Solaris 2.7 and an F760 (running 5.3.5R2)? > > > > Using v3 I get the following errors intermittently: > > > > Jul 27 20:41:07 bullwinkle unix: NFS server 10.20.10.10 not responding still trying > > Jul 27 20:41:07 bullwinkle unix: NFS server 10.20.10.10 ok > > Jul 27 20:42:06 bullwinkle unix: NFS server 10.20.10.10 not responding still trying > > Jul 27 20:42:06 bullwinkle unix: NFS server 10.20.10.10 ok > > Jul 27 20:43:30 bullwinkle unix: NFS server 10.20.10.10 not responding still trying > > Jul 27 20:43:30 bullwinkle unix: NFS server 10.20.10.10 ok > > Jul 27 20:45:40 bullwinkle unix: NFS server 10.20.10.10 not responding still trying > > Jul 27 20:45:40 bullwinkle unix: NFS server 10.20.10.10 ok > > > > When I switched the mount to v2 (udp), these errors went away, and > > performance seemed to increase. Netapp documentation recommends v3, but it > > doesnt seem to work very well in my environment. > > > > Since this filer is used for a DB, this is causing huge problems. Should I > > just leave it at v2, or is worth trying to determine why v3 is performing > > poorly? > > > > -Brian

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toasters