If your target server storage pool is a backup pool, then the reclaim on
the virtual volumes will be built from the primary pool on the source server
and sent over the network in only one direction (although sometimes, 1% of
the time, it does pull some data across the network in both directions.)
>From: "Norback, Jan" <[EMAIL PROTECTED]>
>Reply-To: "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: Re: Server to Server reclamaiton vs move data
>Date: Tue, 1 Aug 2000 16:54:34 +0200
>
>Jack,
>I you work server-to-server all your reclaims will go from the remote to
>the
>local and back to the remote again thus passing your network twice! Same
>thing for move data.
>
>This, hopefully, should be nicer in a SAN environment but I have not seen
>that yet.
>Regards,
>Jan Norback
>
>Origin-IT (MS/DS/OSS Unix)
>VA-173, PO-box 218, 5600 MD Eindhoven, The Netherlands
>Groenewoudseweg 1 5621 BA Eindhoven, The Netherlands
>Email: [EMAIL PROTECTED]
>Tel: +31 (0)40-2780289
>Mobile: +31 (0)6-25233507
>Fax : +31 40 2783962
>
>
>-----Original Message-----
>From: Palmadesso Jack [mailto:[EMAIL PROTECTED]]
>Sent: Tuesday, August 01, 2000 4:29 PM
>To: [EMAIL PROTECTED]
>Subject: Server to Server reclamaiton vs move data
>
>
>Boy sure is quiet in here lately. Maybe this can stir things up a bit ;)
>
>Correct me if I am wrong:
>
>I have 2 servers at remote sites that perform server to server db backups
>and copy storage pools over our WAN. Reclamation usually takes a really
>long time to complete. Especailly as I approach lower reclamation values.
>If I set reclamation for the server to server pool at 80 then I have to
>send
>at most 20% of each tape down over the WAN. DLT 4000s have 20/40
>compression so I could send up to 5/10 gigs of data down the pipe for just
>for one volume!! That could take all day over the WAN!
>
>I am considering using "move data" instead. Again correct me if I am wrong
>please.
>
>When I issue a move data on a server to server volume that volume should be
>mounted in the remote library as well as another filling volume from that
>storage pool or just use a new scratch volume. Since these two volumes are
>mounted in the same library the amount of data that needs to be sent over
>the WAN is now minimal (I'm not sure about this) In this case the data
>would be moved much quicker freeing up my scratch volumes. Also
>communication over the WAN is now minimized because no files are being sent
>only ADSM DB communication is going on. I know I would need at least 2
>mount points available to the storage pool. Can anybody enlighten me on
>this.
>
>Thanks for any help as always,
>
>Jack
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