ADSM-L

ADSM/6000 Logical Volumes or Files?

1994-07-05 16:32:39
Subject: ADSM/6000 Logical Volumes or Files?
From: "Michael W. Kearney" <MICHAEL AT PENNDRLS.UPENN DOT EDU>
Date: Tue, 5 Jul 1994 15:32:39 EST
 We're getting ready to configure a test ADSM/6000 configuration and we've got
 a couple of questions.

 ADSM/6000 allows you to define the various disk resources (log,database,
 repositories) either as a complete AIX logical volume or as an AIX file.
 Is there any reason to prefer one over the other - performance,
 maintainability,
 flexibility, reliability, etc?

 We plan to use disk mirroring on separate physical devices. Is there any reason
 to place the mirror volumes on a different SCSI channel from the primaries?
 The ADSM planning documentation recommended separate channels for our VM
 configuration as it allows database updates to keep going on even if we have
 a channel failure. However, it's not clear to me if this recommendation
 migrates to the RS/6000 platform as well. Anyone have any insight? Thanks.

 MK
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