We've just moved to a new HDS 9900 storage device and now we are
planning to
use PPRCopy to replicate volumes for backup. We want to be able to
run the
backups on the same lpar that the primary volumes are online to using
DFDSS.
I was told that in order to do this the secondary volume labels' must be
clipped before I can bring them online but by clipping them I also
loose the
primary-secondary volume relationships. Besides using another lpar or
other
3rd party utilities to run the backups, how does one handle this
situation?
You don't need to lose the relationship to do the backup. You probably
want to backup a point-in-time copy of the volumes, so you can just
SUSPEND the PPRC relationship. This freezes the copy and makes it
read/write so you can relabel (CLIP) it. After the backup, you can
RESYNC the PPRC copy, which just copies tracks updated since the SUSPEND.
You didn't mention if you are going to use HDS ShadowImage ("PPRC"
within a subsystem) or real PPRC (HRC) between two subsystems. In
either case HDS has manuals on this, I am most familiar with the
ShadowImage manual.
Having said that, you might want to check out our FDRINSTANT (see our
web site below). It supports ShadowImage and HRC and allows you to do
the backup of the point-in-time copy without relabling it or any
tomfollery like that.
--
Bruce A. Black
Senior Software Developer for FDR
Innovation Data Processing 973-890-7300
personal: [EMAIL PROTECTED]
sales info: [EMAIL PROTECTED]
tech support: [EMAIL PROTECTED]
web: www.innovationdp.fdr.com
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