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List:       adsm-l
Subject:    AW: [ADSM-L] AW: VStore Restore vmdk UPDATE
From:       Andreas Kaiser <Andreas.Kaiser () SUEDKURIER ! DE>
Date:       2011-04-19 12:23:52
Message-ID: 5849FFE28A6B244DBB1D42E41433FD8DF07EE9 () EXCH10MBX ! suedkurier ! de
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Received the same response from IBM.

Having a disk pool for the control files removed the gaps, so I no longer have to \
wait hours for a restore. However at least the backups still weren't really \
streaming. The chunks were still visible in the data rate graphs, so I downgraded to \
compare the versions. There still is big difference, with 6.2.2.2 being roughly twice \
as fast, both in backup and restore.

Hello 6.2.2.2, I'm back. Without TDP I can see no advantage using 6.2.3.0 for this \
particular function.

Gruss, Andreas

-----Ursprüngliche Nachricht-----
Von: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] Im Auftrag von Howard \
                Coles
Gesendet: Montag, 18. April 2011 22:30
An: ADSM-L@VM.MARIST.EDU
Betreff: Re: [ADSM-L] AW: VStore Restore vmdk UPDATE


Gents, got a message back from IBM regarding the 6.2.3 client.

Here's the doc they pointed me to:
"It looks like the issue might be related to not keeping the TSM metadata (control \
files) on disk while allowing the actual virtual machine backup data to reside on \
tape, as documented under the "Tape configuration guidelines Backup to tape" heading \
in the following DCF:

'Tivoli Storage Manager for Virtual Environments - Data Protection for VMware Tape \
Support Statement': http://www-01.ibm.com/support/docview.wss?uid=swg27021081
"

According to the "Tape Config" section referred to, you have to setup a Disk pool \
that DOES NOT migrate to onsite tape.  (of course you should backup to tape for \
offsite, but you'll need to restore the disk pool at DR time).  Then setup a special \
Management Class that points the data to that disk pool, and add an entry to the \
dsm.opt file like so: VMCTLMC "VMDKCTLBACKUP_MC"
(or whatever you call your "MC").

I still can't restore directly to the SAN volume for some reason, but the restores \
are MUCH faster.  (16MB/s over a GB connection, and I don't need the NBD setting \
explicitly any longer it fails back to that automatically as it should).  NOTE: this \
is only needed with the 6.2.3 client, and newer I would assume.


See Ya'
Howard Coles Jr., RHCE, CNE, CDE
John 3:16!


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> Mehr Infos: http://www.suedkurier.de/relaunch

Die Auftragsabwicklung erfolgt auf Grundlage der jeweils gültigen AGB der \
beauftragten Unternehmen im SÜDKURIER Medienhaus (http://www.suedkurier.de/agb ).


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