Gil Smith wrote:
Hey Dave,
Did you know about the "toasters" mail list at mathworks? One of our customers started this mailing list for owners of netapp boxes to share information with each other.
Anyway below is a question that was on the list just recently related to clearcase. Thought you might be interrested in the list and this question.
--Gil
----- Forwarded message from Scott MacDonald -----
From scott@msi-uk.com Fri Oct 31 06:51:22 1997
Sender: scott@msi-uk.com Message-ID: 3459EC09.38A8@msi-uk.com Date: Fri, 31 Oct 1997 14:32:41 +0000 From: Scott MacDonald scott@msi-uk.com Organization: Mobile Systems International Plc, UK X-Mailer: Mozilla 3.01Gold (X11; I; SunOS 5.5 sun4m) To: toasters@mathworks.com Subject: Dumping Clearcase Storage Pools
Does anyone have any experience using NetApp filers to hold Clearcase storage pools, and if so, how did you manage the backups? We're just about to move to them, and we think we should be able to lock the VOBs, copy the db to the filer, then do a local dump (from a snapshot) to DLT. If anyone has any experience they wouldn't mind sharing, I'd love to hear it. TIA,
Scott.
Scott MacDonald Mobile Systems International Plc Tel: 0171 971 8798System Administrator Fax: 0171 971 8712 E-Mail: scott@msi-uk.com _______________________________________________________________
----- End of forwarded message from Scott MacDonald -----
Scott,
We have been doing this for 7 or 8 months now. We have approximately 50 VOBs to backup on a daily basis. Our backups have dropped from around 7 hours to 1 hour and 1/2 hours. Basically this is what we do.
Snapshots are set so that there is a snapshot at midnight. At 2357 we lock all the VOBs and wait for the snapshot. At around 0004 we copy the database files from every VOB to a backup directory on the NetApps, create links between this backup area and the source pools in the snapshot. Unlock the VOB and start copying the VOB data to tape. The tape process takes about 7-8 hours. But the most important thing is that our VOB are only locked for around 1 hour. The process has worked very well for us. Hope this helps.
Dave
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Dave Compton