From: Taylor, David (DTaylor@WBMI.COM)
Date: Tue Apr 08 2003 - 11:59:22 EDT
I've noticed some slowness when working with the LVM commands with big VGs.
David
-----Original Message-----
From: pSeries AIX Geek [mailto:aixgeek@YAHOO.COM]
Sent: Tuesday, April 08, 2003 10:30 AM
To: aix-l@Princeton.EDU
Subject: Big VGs
I inherited a system that has a volume group with
thirty two 8GB Shark LUNs. Obviously, we're maxed
out. The current plan is to move to a "big" VG.
There's some 150 free PPS on one disk, so I do have
the option of using lmigratepp to move the first {x}
partitions from each disk to the free section in the
VG.
[Rebuilding a new VG or using another VG is also an
option, but for various reasons, the DBAs are leaning
toward this one.]
My questions:
1. AIX 4.3.3 ML 10. Any known problems with big VGs?
I couldn't see any APARs.
2. Exactly how many free PPs do I need at the start
of each disk?
Other than that, I assume that there aren't any issues
with just shutting everything down and running "chvg
-B VGname" (after running a database backup, of
course).
- pAG
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