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13520 discussions

RE: supported Tape Drives
by Grant.Melvin＠netapp.com 25 May '00

25 May '00

Hi Jason, We are working in engineering with other tape technologies and have plans to support some of them later this year, when we do we'll update TIP 99. Until then if you need information on what's coming you should talk to your sales rep. Cheers, Grant -----Original Message----- From: jmiddlebrooks(a)datalink.com [mailto:jmiddlebrooks@datalink.com] Sent: Thursday, May 25, 2000 12:32 PM To: Melvin, Grant Cc: toasters(a)mathworks.com Subject: RE: supported Tape Drives The date on TIP_99 is November 23, 1998. You mean that Netapp has not qualified any more tape drives since then? Tape Technology has changed quite a bit since then..... Jason Middlebrooks Systems Engineer Datalink Corp. 888-933-9327 x2970

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RE: Migrating from NetApp to new NetApp
by Francett, Robert D (SAIC) 25 May '00

25 May '00

Definately check out ndmpcopy. We've had very good luck with it. 0-9 dump levels supported so bulk of transfers can happen without affecting production, then downtime/no access time for final level dump of data thus keeping downtime to a minumum. Also supports additional comms card (real handy if both filers have Gig enet). Example: ndmpcopy oldfiler:/vol/datapath newfiler:/vol/datapath -sa root:password -da root:password -dhost gige_address -level 4 Administered from the adminhost; only real shortcoming is that password is advertised, so take precautions there. (If your password has special characters in it they'll have to be preceded with "\" in command line.) Bob Francett BP Exploration (Alaska) > ---------- > From: Kelsey Cummings[SMTP:kgc@sonic.net] > Reply To: kgc(a)sonic.net > Sent: Wednesday, May 24, 2000 1:50 PM > To: toasters(a)mathworks.com > Subject: Migrating from NetApp to new NetApp > > I've got a f230 with 4 shelves of 4GB disks and its replacement, an > f740. I talked to netapp support and they recommended that the best > method to move the data from the f230 to the f740 would be to tapes with > dump and restore. I can't believe that there isn't a more efficient way > to do this. We are an ISP and all mail/ftp/http is served off of the > netapp, any downtime will be painfull so we'd like to minimize it as > best we can. > > What choices to migrate the data do we have? We've considered tar/cpio > over nfs but that's going to take some time even if we migrate one > service at a time. dump/restore seems clumsy. and plain ole 'cp' would > take forever. Apparently there are issues with volcopy going from SCSI > to FCAL, is that true? > > -- > Kelsey Cummings - kgc(a)sonic.net sonic.net > System Administrator 300 B Street, Ste 101 > 707.522.1000 (Voice) Santa Rosa, CA 95404 > 707.547.2199 (Fax) http://www.sonic.net/ > Fingerprint = 7F 59 43 1B 44 8A 0D 57 91 08 73 73 7A 48 90 C5 >

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RE: supported Tape Drives
by jmiddlebrooks＠datalink.com 25 May '00

25 May '00

The date on TIP_99 is November 23, 1998. You mean that Netapp has not qualified any more tape drives since then? Tape Technology has changed quite a bit since then..... Jason Middlebrooks Systems Engineer Datalink Corp. 888-933-9327 x2970

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RE: supported Tape Drives
by Grant.Melvin＠netapp.com 25 May '00

25 May '00

Hi Jason, TIP 99 at: http://now.netapp.com/NOW/knowledge/contents/TIP/TIP_99.shtml Cheers, Grant -----Original Message----- From: jmiddlebrooks(a)datalink.com [mailto:jmiddlebrooks@datalink.com] Sent: Thursday, May 25, 2000 9:19 AM To: toasters(a)mathworks.com Subject: supported Tape Drives Where could I find a list of qualified tape drives that can be attached to the F700 series filer? Thanks in Advance Jason Middlebrooks Systems Engineer Datalink Corp. 888-933-9327 x2970

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RE: Migrating from NetApp to new NetApp
by jeff.mohler＠netapp.com 25 May '00

25 May '00

Or even 'vol vopy' as well..its free, and will work at max possible performance between your two. Mind you..that any changes in the data as you copy..may not migrate across as well unless you do schedule a downtime. If you were my customer and I had to do this..I would use vol copy. -----Original Message----- From: Harechmak, John Sent: Wednesday, May 24, 2000 3:31 PM To: kgc(a)sonic.net; toasters(a)mathworks.com Subject: RE: Migrating from NetApp to new NetApp Hi, There is a whitepaper that might be interest on the netapp website: "Migrating Data Between NetApp Filers" http://www.netapp.com/tech_library/3018.html. Have you considered NDMPcopy? -- johnrh -----Original Message----- From: Kelsey Cummings [mailto:kgc@sonic.net] Sent: Wednesday, May 24, 2000 2:50 PM To: toasters(a)mathworks.com Subject: Migrating from NetApp to new NetApp I've got a f230 with 4 shelves of 4GB disks and its replacement, an f740. I talked to netapp support and they recommended that the best method to move the data from the f230 to the f740 would be to tapes with dump and restore. I can't believe that there isn't a more efficient way to do this. We are an ISP and all mail/ftp/http is served off of the netapp, any downtime will be painfull so we'd like to minimize it as best we can. What choices to migrate the data do we have? We've considered tar/cpio over nfs but that's going to take some time even if we migrate one service at a time. dump/restore seems clumsy. and plain ole 'cp' would take forever. Apparently there are issues with volcopy going from SCSI to FCAL, is that true? -- Kelsey Cummings - kgc(a)sonic.net sonic.net System Administrator 300 B Street, Ste 101 707.522.1000 (Voice) Santa Rosa, CA 95404 707.547.2199 (Fax) http://www.sonic.net/ Fingerprint = 7F 59 43 1B 44 8A 0D 57 91 08 73 73 7A 48 90 C5

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Migrating from NetApp to new NetApp
by Kelsey Cummings 25 May '00

25 May '00

I've got a f230 with 4 shelves of 4GB disks and its replacement, an f740. I talked to netapp support and they recommended that the best method to move the data from the f230 to the f740 would be to tapes with dump and restore. I can't believe that there isn't a more efficient way to do this. We are an ISP and all mail/ftp/http is served off of the netapp, any downtime will be painfull so we'd like to minimize it as best we can. What choices to migrate the data do we have? We've considered tar/cpio over nfs but that's going to take some time even if we migrate one service at a time. dump/restore seems clumsy. and plain ole 'cp' would take forever. Apparently there are issues with volcopy going from SCSI to FCAL, is that true? -- Kelsey Cummings - kgc(a)sonic.net sonic.net System Administrator 300 B Street, Ste 101 707.522.1000 (Voice) Santa Rosa, CA 95404 707.547.2199 (Fax) http://www.sonic.net/ Fingerprint = 7F 59 43 1B 44 8A 0D 57 91 08 73 73 7A 48 90 C5

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Re: NIS problem with netgroup file
by Jagan Bearelly 25 May '00

25 May '00

Hi Cheryl, I am assuming you are using DNS. There should be case sensitive FQDN entry that matches the "nslookup" output for a given client and please see that dns.domainname is set with the same case sensitive value because "ypmatch" on NIS server is case sensitive. Also, ONTAP version 5.3.4R3 doesn't have a fix for netgroup related issue (19922 netgroup lookups can fail with fully qualified domain name). This fix is available in 5.3.5, 5.3.5R1 and 5.3.5R2 which are the latest releases. I hope that helps. Thank you. Regards, Jagan Bearelly http://now.netapp.com Escalations Engineer >From cruddace(a)feather.llnl.gov Thu May 25 09:40:29 2000 Date: Thu, 25 May 2000 09:25:26 -0700 (PDT) From: Cheryl Cruddace <cruddace(a)feather.llnl.gov> Subject: NIS problem with netgroup file To: toasters(a)mathworks.com MIME-Version: 1.0 Content-MD5: 9hsyoedGCI60E8f24Pk+rw== I have developed a problem using the netgroup map on our NIS server that resulted in having to copy the netgroup file to the filer and changing the nsswitch.conf file to point to the local file. This first occurred our F740 running OnTap 5.2.3 and continued after I upgraded to 5.3.4R3. The netgroup file used to have a mixture of systems with and without FQDN. Right before this occurred all were set to FQDN. I know there was a bug with using fully qualified names but that was supposedly fixed in later OnTap OS's. Example: Netgroup with FQDN feather.llnl.gov Without FQDN feather The interesting thing is that I can use a file with FQDN on the filer but not on the NIS server. As an experiment, I modified the netgroup file on the NIS server and took out FQDN, pushed out the maps, set the filer to use the maps and I could again mount the home directories on clients. If I changed back to FQDN, it will not let me mount from clients unless I use the netgroup file local to the filer. Any ideas? P.S. I want my mail to go to my alias instead of to a specific machine. How do I change that, unsubscribe and subscribe won't work, will it? Need to be cruddace1(a)llnl.gov instead of cruddace(a)feather.llnl.gov.

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NIS problem with netgroup file
by Cheryl Cruddace 25 May '00

25 May '00

I have developed a problem using the netgroup map on our NIS server that resulted in having to copy the netgroup file to the filer and changing the nsswitch.conf file to point to the local file. This first occurred our F740 running OnTap 5.2.3 and continued after I upgraded to 5.3.4R3. The netgroup file used to have a mixture of systems with and without FQDN. Right before this occurred all were set to FQDN. I know there was a bug with using fully qualified names but that was supposedly fixed in later OnTap OS's. Example: Netgroup with FQDN feather.llnl.gov Without FQDN feather The interesting thing is that I can use a file with FQDN on the filer but not on the NIS server. As an experiment, I modified the netgroup file on the NIS server and took out FQDN, pushed out the maps, set the filer to use the maps and I could again mount the home directories on clients. If I changed back to FQDN, it will not let me mount from clients unless I use the netgroup file local to the filer. Any ideas? P.S. I want my mail to go to my alias instead of to a specific machine. How do I change that, unsubscribe and subscribe won't work, will it? Need to be cruddace1(a)llnl.gov instead of cruddace(a)feather.llnl.gov.

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supported Tape Drives
by jmiddlebrooks＠datalink.com 25 May '00

25 May '00

Where could I find a list of qualified tape drives that can be attached to the F700 series filer? Thanks in Advance Jason Middlebrooks Systems Engineer Datalink Corp. 888-933-9327 x2970

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Re: Migrating from NetApp to new NetApp
by Jay Sekora 25 May '00

25 May '00

I second other people's recommendations of rsync. rsync is great. There's another possibility, though, that has some of the same advantages. With rsync, you can do a preliminary copy that does everything while the system is live, and then schedule a hopefully short downtime to update just those things that have changed. Dump/restore should be able to do the same thing. While your filer is up and serving, dump/restore everything at level 0. (You can do this by rsh'ing the dump to the old filer and the restore to the new server, of course.) Then, when you have downtime scheduled, dump/restore at level 1 (making sure there were no intervening level 0 dumps). That way, you're only copying the changes, and the dump/restore will be much quicker. (Obviously, because you're going over the net, this is going to be slower than something like "vol copy". However, you can do the level 0 dump without interrupting service, so probably you only care about the time taken by the level 1 dump.) Basically, that amounts to doing by hand what rsync does automatically. Probably a bit more efficient than rsync (because less general). -j. Jay Sekora <jay(a)ccs.neu.edu> Unix Systems Administrator Northeastern University College of Computer Science

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