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)

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From: Kelsey Cummings[SMTP:kgc@sonic.net] Reply To: kgc@sonic.net Sent: Wednesday, May 24, 2000 1:50 PM To: toasters@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@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