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RE: Splitting large volumes
by Mike Sphar 29 Aug '00

29 Aug '00

For the record, I used ndmpcopy to migrate from a F230 to an F740, and had zero problems with it. -- Mike Sphar - Sr Systems Administrator - Engineering Support Services, BOFH, GWP, MCP, MCP+I, MCSE, BFD -----Original Message----- From: John Stoffel [mailto:john@casc.com] Sent: Tuesday, August 29, 2000 7:02 AM To: Cliff.Dobbs(a)arm.com Cc: Premanshu Jain; toasters(a)mathworks.com Subject: Re: Splitting large volumes Cliff> I've decided not to use ndmpcopy as a colleague of mine had an Cliff> absolute nightmare with it when he moved from SCSI to FC-AL. Can you go into this in more detail, since this is exactly what I'll be doing when I migrate from an F520 to an F740 sometime in september/october timeframe. From the looks of things, nmdpcopy should do a great job, but the more details of people's problems that I get, the happier I am. Thanks, John x27548

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Backup Solutions for NetApps
by Premanshu Jain 29 Aug '00

29 Aug '00

Present Backup scheme : Spectra Logic Tree frog's attached directly to 740's running dump scripts. I am looking for a solution which can smartly backup 3 TB of data split into several 300 GB volumes on two 760's / 840's (Proposed) . Would welcome suggestions/Comments on the following: Backup library supporting SCSI/Fibre Channel. Better options compared to Spectra logic . (AIT ones) Backup management software - Netbackup/Legato/Workstation Backup server Hardware - SUN box optimum configuration. Premanshu Jain IS Engineering Support Lead Nortel Networks, Carrier Packet Solutions IP Services Division 2305, Mission College Blvd, Santa Clara, CA 95054 Direct: (408) 565-3573 ESN: 655-3573 eMail: prjain(a)shastanets.com Web: http://www.nortelnetworks.com/ipservices

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Netapp snapshots & reserved disk space
by Richard 29 Aug '00

29 Aug '00

I was having trouble setting the snap reserve to 0% on our mirror, it keeps on giving dumb df output, as it has used over 100% of the disk? snap reserve: volume vol0 is snapmirrored, operation not permitted Any idea how to do this? Richard

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RE: Splitting large volumes
by Mohler, Jeff 29 Aug '00

29 Aug '00

I heard Premanshu Jain (Mon, Aug 28, 2000 at 05:13:11PM -0700) say > I had a 550 GB volume on my 740 Filer and need to split into two during my > plan to migrate the stuff on a new 760 Filer. Can somebody suggest a nice > way out...? > prem Depending on the nature of your system, consider 'soft' solutions. If your data is in great big lumps then a vol copy is probably your fastest solution. --- This will not work as vol copy requires an equal or larger sized volume to copy to.

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Completely shut off snapshots & reserved disk space
by Pesce, Nicholas (FUSA) 29 Aug '00

29 Aug '00

Many people replied to my question about turning off snapshots. I guess it comes down to it, which method not only turns off the snapshot, but also turns off the systems reserving of disk space. (I know if I manually set it I will be ok) but does the command snap sched vol0 0 0 0 do it or does vol options <volume name> nosnap on I just don't want to have turned off snapshots, but still have the filer reserving space for them (I know this sounds kooky but I don't know if the microkernel will automatically save the space reguardless.) -----Original Message----- From: Summers, John [mailto:John.Summers@netapp.com] Sent: Tuesday, August 29, 2000 6:36 AM To: 'Pesce, Nicholas (FUSA)' Subject: RE: Completely shut off snapshots Hi, From the filer type snap sched vol0 0 0 0 Repeat for each volume. This is permanent until the next snap sched is issued. It can also be place in the /etc/rc file on vol0. John Summers NetWork Appliance -----Original Message----- From: Pesce, Nicholas (FUSA) [mailto:Nicholaspesce@firstusa.com] Sent: Monday, August 28, 2000 4:51 PM To: toasters(a)mathworks.com Subject: Completely shut off snapshots I'm setting no snapshots to be running and my disk usage to 0% (The machine is used as a cache server only, and the data is not critical in any way shape or form. Is there an alternative method to shutting off snapshots? (i.e a snapshot off command, or something like that)

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Re: Splitting large volumes
by Cliff.Dobbs＠arm.com 29 Aug '00

29 Aug '00

This is very interesting to me, as I am about to do almost exactly the same thing. We have (don't laugh, please) a single 700GB volume which I want to split in to smaller volumes. To do this we have purchased a new 760 with 8 shelves ( we need more capacity anyway). What I plan to do is use rdist or rsync to copy the data from the old volume to the new volumes. Once the initial (level 0 ) copy is done I will keep up with daily incrementals until such a time as we can arrange a short down time to do a final copy and then re-rack the shelves to split them across the two heads. Hey presto. I've decided not to use ndmpcopy as a colleague of mine had an absolute nightmare with it when he moved from SCSI to FC-AL. Cliff Dobbs Systems Administrator ARM Ltd Tel: +44 1223 400430 Fax: +44 1223 400410 e-mail: Cliff.Dobbs(a)arm.com I had a 550 GB volume on my 740 Filer and need to split into two during my plan to migrate the stuff on a new 760 Filer. Can somebody suggest a nice way out...? prem -----Original Message----- From: Aaron Sherman [mailto:ajs@ajs.com] Sent: Monday, August 28, 2000 2:25 PM To: Bruce Sterling Woodcock Cc: Sam Schorr; toasters(a)mathworks.com Subject: Re: Console "Servers" On Mon, Aug 28, 2000 at 12:09:41PM -0700, Bruce Sterling Woodcock wrote: > From: "Sam Schorr" <sschorr(a)homestead-inc.com> > Sent: Monday, August 28, 2000 11:37 AM > > Does anyone have a recommendation for a console connection server? > > We have 14 filers and growing and I'm looking for some > > centralized, easy serial connection box. I have used Annex in the > > past for UNIX, but thought maybe some folks out there in > > toasterland might have some ideas to share. > Livingston^H^H^H^H^H^H^H^H^Hucent Portmasters (2e) also > work well and might be a little cheaper than an Annex. On the pricy side, we have a Cisco 2511, and it does a very nice job. -- Aaron Sherman Systems Architect HighWired.com -- The global high school community http://www.highwired.com 300 North Beacon Street Watertown, MA 02472 (617) 926-1850 x238 (617) 926-1861 fax asherman(a)highwired-inc.com / ICQ#43677395 / Y!ajstrader "We had some good machines, but they don't work no more." -"Faded Flowers" / Shriekback

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RE: Completely shut off snapshots
by Mohler, Jeff 29 Aug '00

29 Aug '00

vol options <volume name> nosnap on -----Original Message----- From: Pesce, Nicholas (FUSA) [mailto:Nicholaspesce@firstusa.com] Sent: Monday, August 28, 2000 1:51 PM To: toasters(a)mathworks.com Subject: Completely shut off snapshots I'm setting no snapshots to be running and my disk usage to 0% (The machine is used as a cache server only, and the data is not critical in any way shape or form. Is there an alternative method to shutting off snapshots? (i.e a snapshot off command, or something like that)

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RE: Removing disks from a volume
by Mike Sphar 29 Aug '00

29 Aug '00

I agree, I think this is a really good idea for an enhancement request. Especially useful for inexperienced admins (or those muddle-headed from their 4th 18-hour day this week). -- Mike Sphar - Sr Systems Administrator - Engineering Support Services, BOFH, GWP, MCP, MCP+I, MCSE, BFD -----Original Message----- From: Jeffrey Krueger [mailto:jkrueger@qualcomm.com] Sent: Monday, August 28, 2000 10:37 AM To: Brian Tao Cc: Mike Sphar; toasters(a)mathworks.com Subject: Re: Removing disks from a volume On Sat, Aug 26, 2000 at 11:12:14AM -0400, Brian Tao wrote: > > Indeed... recovery could be costly and/or awkward. Perhaps Netapp > would consider a "safety feature" enhancement for "vol add/create" > command where by default it will not allow a situation in which a > volume/raidgroup is left with no hot spares. Add a "-f" switch (or > whatever) to force an override. Warm fuzzy feature. :) This is a great idea. And should be only a couple line of intern-level code to implement too. -- Jeff -- ---------------------------------------------------------------------------- Jeff Krueger E-Mail: jeff(a)qualcomm.com Senior Engineer Phone: 858-651-6709 NetApp Filers / UNIX Infrastructure Fax: 858-651-6627 QUALCOMM, Inc. IT Engineering Web: www.qualcomm.com

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Splitting large volumes
by Premanshu Jain 29 Aug '00

29 Aug '00

I had a 550 GB volume on my 740 Filer and need to split into two during my plan to migrate the stuff on a new 760 Filer. Can somebody suggest a nice way out...? prem -----Original Message----- From: Aaron Sherman [mailto:ajs@ajs.com] Sent: Monday, August 28, 2000 2:25 PM To: Bruce Sterling Woodcock Cc: Sam Schorr; toasters(a)mathworks.com Subject: Re: Console "Servers" On Mon, Aug 28, 2000 at 12:09:41PM -0700, Bruce Sterling Woodcock wrote: > From: "Sam Schorr" <sschorr(a)homestead-inc.com> > Sent: Monday, August 28, 2000 11:37 AM > > Does anyone have a recommendation for a console connection server? > > We have 14 filers and growing and I'm looking for some > > centralized, easy serial connection box. I have used Annex in the > > past for UNIX, but thought maybe some folks out there in > > toasterland might have some ideas to share. > Livingston^H^H^H^H^H^H^H^H^Hucent Portmasters (2e) also > work well and might be a little cheaper than an Annex. On the pricy side, we have a Cisco 2511, and it does a very nice job. -- Aaron Sherman Systems Architect HighWired.com -- The global high school community http://www.highwired.com 300 North Beacon Street Watertown, MA 02472 (617) 926-1850 x238 (617) 926-1861 fax asherman(a)highwired-inc.com / ICQ#43677395 / Y!ajstrader "We had some good machines, but they don't work no more." -"Faded Flowers" / Shriekback

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RE: Splitting large volumes
by Brookes, Matt 29 Aug '00

29 Aug '00

Hi Jain, Take a look at "Migrating Data Between NetApp Filers" http://www.netapp.com/tech_library/3018.html It doesn't cover all the possibilities, (such as connecting the source drives to the destination filer, which has a number of issues you need to be comfortable with), but it will give you a good overview of most of the options available to you. Also some, such as volcopy & SnapMirror, wont apply in this case where you're splitting the volume. Regards, Matt. > -----Original Message----- > From: Premanshu Jain [mailto:PrJain@shastanets.com] > Sent: 29 August 2000 01:13 > To: toasters(a)mathworks.com > Subject: Splitting large volumes > > > I had a 550 GB volume on my 740 Filer and need to split into > two during my > plan to migrate the stuff on a new 760 Filer. Can somebody > suggest a nice > way out...? > prem > > -----Original Message----- > From: Aaron Sherman [mailto:ajs@ajs.com] > Sent: Monday, August 28, 2000 2:25 PM > To: Bruce Sterling Woodcock > Cc: Sam Schorr; toasters(a)mathworks.com > Subject: Re: Console "Servers" > > > On Mon, Aug 28, 2000 at 12:09:41PM -0700, Bruce Sterling > Woodcock wrote: > > > From: "Sam Schorr" <sschorr(a)homestead-inc.com> > > Sent: Monday, August 28, 2000 11:37 AM > > > > Does anyone have a recommendation for a console connection server? > > > We have 14 filers and growing and I'm looking for some > > > centralized, easy serial connection box. I have used Annex in the > > > past for UNIX, but thought maybe some folks out there in > > > toasterland might have some ideas to share. > > > Livingston^H^H^H^H^H^H^H^H^Hucent Portmasters (2e) also > > work well and might be a little cheaper than an Annex. > > On the pricy side, we have a Cisco 2511, and it does a very nice job. > > -- > Aaron Sherman > Systems Architect > HighWired.com -- The global high school community > http://www.highwired.com > > 300 North Beacon Street > Watertown, MA 02472 > (617) 926-1850 x238 > (617) 926-1861 fax > asherman(a)highwired-inc.com / ICQ#43677395 / Y!ajstrader > > "We had some good machines, but they don't work no more." > -"Faded Flowers" / Shriekback >

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