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SCSI over IP available now
by Alvarado, Michael 22 Dec '00

22 Dec '00

It is called NDMP. www.ndmp.org

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Re: Using Network Appliance F7xx's in a WAN environment.
by Paul Wiltsey 22 Dec '00

22 Dec '00

You can use UDP or TCP and you can use Vers 2 or 3. You are going to find most of the performance affecting tuning is done via the NFS client options. Use smaller Rsize and Wsize (ie wsize=2048,rsize=2048) and try increasing your client UDP Buffer if you choose to use NFS over UDP. Also increase your NFS retries to between 3 and 5 and timeout to 10. Remember, over a possibly already fully WAN link... TCP does have slightly more overhead in total packet count transmitted ( provided UDP does not have too many retrans). Have fun with the tuning... and keep track of performance ( copy time ) with all Rsize and Wsize between 512 and 32k . Try small files and larger files. Test on both a read from server and a write to server. ----- Original Message ----- From: Matthew Stier <Matthew.Stier(a)fnc.fujitsu.com> Date: Thursday, December 21, 2000 3:24 pm Subject: Using Network Appliance F7xx's in a WAN environment. > Any known filer tweaks to improve perfomance of NFS across a Wide Area > Network? > > -- > Matthew Lee Stier * Fujitsu Network Communications > Unix Systems Administrator | Two Blue Hill Plaza > Ph: 914-731-2097 Fx: 914-731-2011 | Sixth Floor > Matthew.Stier(a)fnc.fujitsu.com * Pearl River, NY 10965 > > > >

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RE: ndmpcoy maxes the CPU on 840
by Traitel, Eyal 22 Dec '00

22 Dec '00

Which versions are the filers running ? Eyal. ---------------------------------------------------------------------- eTraitel - I'm the new eBuzzword around !!! ---------------------------------------------------------------------- Eyal Traitel - Filer Escalation Engineer CNA, MCSE, CSA, NetApp CA Network Appliance BV Holland Office Center Kruisweg 799b 2132 NG, Hoofddorp The Netherlands Office: +31 23 567 9685 Cellular: +31 6 5497 2568 Email: eyal(a)netapp.com ---------------------------------------------------------------------- Get answers NOW! - NetApp On the Web - http://now.netapp.com ---------------------------------------------------------------------- -----Original Message----- From: Premanshu Jain [mailto:PrJain@shastanets.com] Sent: Friday, December 22, 2000 3:38 AM To: toasters Subject: ndmpcoy maxes the CPU on 840 Whenever I fire an ndmpcopy from a 740 to 840, it immedietly maxes cpu (100%) on the 840. Only a reboot brings CPU activity down then.. Any clues....???? Here is the final error message thrown... bot: LOG: RESTORE: bot: LOG: Thu Dec 21 17:33:12 2000: Restoring NT ACLs. filebot: LOG: DUMP: filebot: LOG: dumping (Pass V) [ACLs] filebot: LOG: DUMP: filebot: LOG: 87029 KB filebot: LOG: DUMP: filebot: LOG: DUMP IS DONE filebot: LOG: DUMP: filebot: LOG: Deleting "/vol/sw/../snapshot_for_backup.150" snapshot. bot: HALT: The operation was successful! Waiting for filebot to halt too. The transfer was successful, but the source filer hasn't halted yet. filebot: HALT: The operation was successful! Broken Pipe mtshasta% Data server never halted, closing connection. Broken Pipe

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ndmpcoy maxes the CPU on 840
by Premanshu Jain 22 Dec '00

22 Dec '00

Whenever I fire an ndmpcopy from a 740 to 840, it immedietly maxes cpu (100%) on the 840. Only a reboot brings CPU activity down then.. Any clues....???? Here is the final error message thrown... bot: LOG: RESTORE: bot: LOG: Thu Dec 21 17:33:12 2000: Restoring NT ACLs. filebot: LOG: DUMP: filebot: LOG: dumping (Pass V) [ACLs] filebot: LOG: DUMP: filebot: LOG: 87029 KB filebot: LOG: DUMP: filebot: LOG: DUMP IS DONE filebot: LOG: DUMP: filebot: LOG: Deleting "/vol/sw/../snapshot_for_backup.150" snapshot. bot: HALT: The operation was successful! Waiting for filebot to halt too. The transfer was successful, but the source filer hasn't halted yet. filebot: HALT: The operation was successful! Broken Pipe mtshasta% Data server never halted, closing connection. Broken Pipe

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Using Network Appliance F7xx's in a WAN environment.
by Matthew Stier 21 Dec '00

21 Dec '00

Any known filer tweaks to improve perfomance of NFS across a Wide Area Network? -- Matthew Lee Stier * Fujitsu Network Communications Unix Systems Administrator | Two Blue Hill Plaza Ph: 914-731-2097 Fx: 914-731-2011 | Sixth Floor Matthew.Stier(a)fnc.fujitsu.com * Pearl River, NY 10965

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Re: Toaster newbie questions
by Paul Wiltsey 21 Dec '00

21 Dec '00

I agree with the preference of Jamey ----- Original Message ----- From: Jamey Maze <jmaze(a)netapp.com> Date: Thursday, December 21, 2000 1:00 pm Subject: Re: Toaster newbie questions > Qtrees are the preferred way to organize things for any application > where > you can't justify a separate volume. With one shelf, I'd recommend > you have > a single 6-drive volume and one hot spare. You can delete qtrees > like any > other folder/directory. > > > At 11:44 AM 12/21/00 -0500, lgkloft(a)usgs.gov wrote: > >I am setting up my first toaster - an F720 with one shelf (seven 36GB > >drives). I'm seeking some "real-life" experiences and > recommendations based > >on what I am trying to do. > > > >I work in a small office with approximately 50 employees and > utilize UNIX > >and NT operating systems. I currently have several $HOME, > $PROJECT, and > >GIS-related filesystems residing on my UNIX system. I plan to move > these>filesystems to the filer, but will be unable to create a > separate volume > >for each filesystem. I considered creating two raid-groups, one > for $HOME > >and one for $PROJECT, but I think there will be a performance hit > (only 1-2 > >data disks per volume) and it will cost me two drives for parity, > not to > >mention the spare disk drive. I am now looking at employing one large > >volume (the root volume) and establishing Qtrees to establish and > manage>HOME, PROJECT, and GIS areas within this volume, which would > require NFS > >and CIFS access. I am also considering the idea of creating an > additional>Qtree to maintain user's roaming profiles for the NT > environment - which > >would require CIFs access only. I don't like the idea of doing > this all in > >one volume (especially /vol/vol0), but it looks as if this is the > route I > >will be taking unless someone has a better recommendation. > Finally, how > >difficult, or is it even possible, to remove a Qtree? I didn't find > >anything in the SA Guide to do this. > > > >Thanks, > >Loren > > > -- > James N. (Jamey) Maze Phone: 615-496-4799 > Network Appliance SE www.netapp.com > >

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RE: Toaster newbie questions
by Sam Schorr 21 Dec '00

21 Dec '00

I would highly recommend going with 1 volume and 1 RAID group given your initial buy. With one shelf, you are going to get 1 parity and 6 data without leaving any disks as a spare - not a good idea. So, if use 1 disk for spare, then you have 5 data and 1 parity. Even with only one volume, you can easily setup NFS mount points and CIFS shares that either mix or do not by creating sub-directories or folders that reside on the 1 volume. Remember that you also give up space to NTAP, the O/S, and to snapshots which are volume specific (default is 20% of total volume size). That will leave you with about 4 drives of live file space. So, 4*32gig=128 gig size of volume. -----Original Message----- From: lgkloft(a)usgs.gov [mailto:lgkloft@usgs.gov] Sent: Thursday, December 21, 2000 8:44 AM To: toasters(a)mathworks.com Cc: lgkloft(a)usgs.gov Subject: Toaster newbie questions I am setting up my first toaster - an F720 with one shelf (seven 36GB drives). I'm seeking some "real-life" experiences and recommendations based on what I am trying to do. I work in a small office with approximately 50 employees and utilize UNIX and NT operating systems. I currently have several $HOME, $PROJECT, and GIS-related filesystems residing on my UNIX system. I plan to move these filesystems to the filer, but will be unable to create a separate volume for each filesystem. I considered creating two raid-groups, one for $HOME and one for $PROJECT, but I think there will be a performance hit (only 1-2 data disks per volume) and it will cost me two drives for parity, not to mention the spare disk drive. I am now looking at employing one large volume (the root volume) and establishing Qtrees to establish and manage HOME, PROJECT, and GIS areas within this volume, which would require NFS and CIFS access. I am also considering the idea of creating an additional Qtree to maintain user's roaming profiles for the NT environment - which would require CIFs access only. I don't like the idea of doing this all in one volume (especially /vol/vol0), but it looks as if this is the route I will be taking unless someone has a better recommendation. Finally, how difficult, or is it even possible, to remove a Qtree? I didn't find anything in the SA Guide to do this. Thanks, Loren

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Re: Filers and Extreme switches
by Paul Wiltsey 21 Dec '00

21 Dec '00

We have had excellent results with Filers and Extreme switches, specifically Black Diamonds, Summit 48s, 7is. Can you be more specific about what you are trying to do? ----- Original Message ----- From: Peter Ellett <p_ellett(a)yahoo.com> Date: Wednesday, December 20, 2000 9:22 pm Subject: Filers and Extreme switches > Hi all > > Has anyone experienced poor performance with Filers and Extreme > Alpine or Black Diamond switches? > If yes, any fixes or workarounds known? > > Pete Ellett > > __________________________________________________ > Do You Yahoo!? > Yahoo! Shopping - Thousands of Stores. Millions of Products. > http://shopping.yahoo.com/ >

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RE: Toaster newbie questions
by Mike Sphar 21 Dec '00

21 Dec '00

We run several hundred gigs on each of our filers all as one volume. There's a downside in terms of restoring data in case of a failure, but since we paid a lot of money for these netapps in the first place so as to not *have* failures, we consider that an acceptable risk. Our disk space requirements change constantly, so for us trying to maintain separate volumes would be a nightmare and would inevitably create more downtime in the long run. -- Mike Sphar - Sr Systems Administrator - Engineering Support Services, BOFH, GWP, MCP, MCP+I, MCSE, BFD -----Original Message----- From: lgkloft(a)usgs.gov [mailto:lgkloft@usgs.gov] Sent: Thursday, December 21, 2000 8:44 AM To: toasters(a)mathworks.com Cc: lgkloft(a)usgs.gov Subject: Toaster newbie questions I am setting up my first toaster - an F720 with one shelf (seven 36GB drives). I'm seeking some "real-life" experiences and recommendations based on what I am trying to do. I work in a small office with approximately 50 employees and utilize UNIX and NT operating systems. I currently have several $HOME, $PROJECT, and GIS-related filesystems residing on my UNIX system. I plan to move these filesystems to the filer, but will be unable to create a separate volume for each filesystem. I considered creating two raid-groups, one for $HOME and one for $PROJECT, but I think there will be a performance hit (only 1-2 data disks per volume) and it will cost me two drives for parity, not to mention the spare disk drive. I am now looking at employing one large volume (the root volume) and establishing Qtrees to establish and manage HOME, PROJECT, and GIS areas within this volume, which would require NFS and CIFS access. I am also considering the idea of creating an additional Qtree to maintain user's roaming profiles for the NT environment - which would require CIFs access only. I don't like the idea of doing this all in one volume (especially /vol/vol0), but it looks as if this is the route I will be taking unless someone has a better recommendation. Finally, how difficult, or is it even possible, to remove a Qtree? I didn't find anything in the SA Guide to do this. Thanks, Loren

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RE: Qualstar AIT-2 and Veritas
by Joe Luchtenberg 21 Dec '00

21 Dec '00

Apologize for the delayed reply to this. Am a strong supporter of AIT-2 and Spectra Logic, but aren't you getting ahead of yourself? According to SL's web page, GbE interfaces are currently under development, but not yet available. If you want to implement GbE with Spectra Logic and NetApp today, you still require a backup server to which you would SCSI- or Fibre-attach your Spectra Logic tape library (I would recommend setting up a private network to take the traffic off your production network, though). Joe Joe Luchtenberg Dataline, Inc. New number and email, please update: 757.858.0600 858.0606 fax joe.luchtenberg(a)data-line.com > -----Original Message----- > From: Alvarado, Michael [SMTP:michael.alvarado@netapp.com] > Sent: Sunday, December 10, 2000 8:52 PM > To: 'Moshe Linzer'; toasters(a)mathworks.com > Subject: RE: Qualstar AIT-2 and Veritas > > Have you considered the GbE AIT 2 library from SpectraLogic? > > -----Original Message----- > From: Moshe Linzer [mailto:Moshe.Linzer@nsc.com] > Sent: Sunday, December 10, 2000 4:00 AM > To: toasters(a)mathworks.com > Subject: Qualstar AIT-2 and Veritas > > > In our quest for a Budtool + tape library replacement, we are currently > looking at Veritas NetBackup and a Qualstar AIT-2 tape library for our 2 > NetApp F760's. Does anyone have experience with this combination? > Qualstar makes a good argument for AIT technology. Is AIT-2 fully > supported on the 760? From looking on NOW, I noticed a few things: > > 1. The F760 SCSI port is HVD, Qualstar library is LVD-SE, so I need a > converter. Can the Filer port be changed to LVD-SE? > 2. Tape drive matrix on > NOW > (http://now.netapp.com/NOW/knowledge/docs/olio/cert_matrices/tape_drives.s > ht > ml) > says that versions below OnTap 6.0 require a PVR. What exactly is a > PVR? Will I still get full performance from the drive? > > Is anyone using Veritas with a Qualstar library? > > Thanks, > > Moshe > > > -- > -------------------------------------------------------------------------- > -- > - > Moshe Linzer | On the Internet, > Unix Systems Manager | > National Semiconductor, Israel | nobody knows you're a moron. > Phone: 972-9-970-2247 | > Fax: 972-9-970-2001 | - Network Magazine > Email: moshel(a)nsc.com | > -------------------------------------------------------------------------- > -- > - >

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