* Steve Harris <[EMAIL PROTECTED]> [2004:03:02:16:18:51+1000] scribed: > Weird requirement.
Yes. > Not something that I'd recommend. And I don't see the logic for having > only part of the data, but, its an intellectual challenge as to how > this can be done. Their design is a bit more complex than I originally posted. They have a second data center (DC), and there, a second TSM using a second disk array. TSM#1 in the main DC#1 is supposed to replicate itself in TSM#2 at DC#2. DC#2 is supposed to house failover servers for all critical servers at DC#1. In the event of catastrophic failure at DC#1, TSM#2 (and DRM#2?) are supposed to recover to these failover servers at DC#2, and all will be back online in a few hours. I am not yet privy to the reality of this setup, and I do not believe that this is fully functional as I write this; but, that is their idea. Also, they have already spent alot of money, and a parade of consultants precede me. They need to minimize cost to whatever they do that they are not already doing. I hope to demonstrate my value by implementing a sound, and simple, and inexpensive tape solution -- then, I may have opportunity to get them to question their overall strategy. > Try this > > Set up a random diskpool big enough to hold one nights backup. Point backup at > this. > Set up a main sequential file diskpool. Make this the nextstg of the nightly pool > with manually controlled migration between the two. > Each day, run a backup stg from the nightly pool to the tape pool and send the tapes > off site. Then migrate the nightly pool to the main pool. > Script a tape return process keyed on the state and update date of the drmedia table. > When the tapes come back, run a delete vol discardd=yes on them. <snip /> OK. Thank you, for your ideas. But, what about my idea to _archive_ from the disk array to tape? Is that not doable? What are the flaws in this idea? Comments? > >>> [EMAIL PROTECTED] 02/03/2004 13:05:26 >>> <snip /> > The client says that they want to copy daily to tape only the most > recent version of files that have changed since previous day. > > They will accept copy daily to tape all most recent file versions. > > Each morning, those tapes last written will be taken offsite, and tapes > from seven (7) days ago brought back onsite and available. > > Furthermore, there are two (2) offsite locations, one for Windows > platforms, and one for *NIX platforms. > > > I am thinking that this can be accomplished by _archiving_ from the > arrays to tape. I am not clear how to specify policy. Any ideas? <snip /> -- Best Regards, mds mds resource 877.596.8237 - Dare to fix things before they break . . . - Our capacity for understanding is inversely proportional to how much we think we know. The more I know, the more I know I don't know . . . --
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