There's two ways to do this, one is dependable, the other is less so. The undependable way, and I don't recommend it, is to configure media sharing and then time all the times to occur at different times. With luck, they'd all grab the shared tape, mount it locally, and write all the backups sequentially on the tape. Fat chance and darn near impossible. The other ways is to force the backups across the network to a single media server and multplex them onto one tape. Tapes will multiplex multiple servers but only through one media server at a time. I do this with my log file backups, gathering all the security related logs for long-term storage onto a single tape nightly. Create a policy with your filelist in it. Choose what storage unit (& media server) you want to use. & populate your client list. Create your schedule(s) as usual and set your multiplexing factor on them to whatever you want. Don't exceed the max-multiplexing factor for your storage units you chose above. Go back to your attributes page and set the "max jobs per policy" to whatever your multiplexing factor was that you used on your schedule. So - when the job kicks off, it'll start a backup job on every client in the client list. Only the "max jobs per policy" will go active, though, and the rest will queue. One tape will mount on your media server and it'll start to multiplex that many client backups to that one tape. As each client completes in turn, a queued client will go active and continue to that tape. HTH - M
________________________________ From: veritas-bu-boun...@mailman.eng.auburn.edu [mailto:veritas-bu-boun...@mailman.eng.auburn.edu] On Behalf Of Mark .. Sent: Wednesday, May 20, 2009 10:08 AM To: veritas-bu@mailman.eng.auburn.edu Subject: [Veritas-bu] How to configure multiplexing? Hi, I'm currently using NBU 6.5 MP3, the environment is consisted of 54 media servers and 24 LTO4 tape drives. Each of the media servers have 2 policy each. I would like to configure 20 out of 54 media servers to write data to a single tape using one single drive only (assuming that the data is small enough to be written to a single media). How do i achieve that? What's happening currently is that these 20 media servers will use 20 tape drives to write to 20 tapes or these 20 media servers will write using a single tape drive but still to 20 different tapes. Both of the scenarios mentioned is not acceptable. Thanks ------There are 10 types of people in this world; those that understand binary and those that don't.------- Abid <http://us.i1.yimg.com/us.yimg.com/i/mesg/tsmileys2/14.gif>
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