Re: FAStT 600 and AIX
From: Peter McKay (Peter.McKay_at_INFINITY.CO.NZ)
Date: 07/31/03
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Date: Fri, 1 Aug 2003 09:30:47 +1200 To: aix-l@Princeton.EDU
Thanks Michael.
You are the guy!
Kind Regards,
Peter McKay
Technical Consultant
Infinity Solutions
Unit 3, 1 Show Place
Addington, Christchurch
Ph: (03) 9637965, Mob: (027) 2301884
Fx: (03) 9637941
www.infinitysolutions.co.nz <http://www.infinitysolutions.co.nz/>
_____
From: Wheelock, Michael D
[mailto:Michael.Wheelock@INTEGRIS-HEALTH.COM]
Sent: Friday, August 01, 2003 2:15 AM
To: aix-l@Princeton.EDU
Hi,
We have a fastt 700 (basically same software and design, but
certainly the same limitations on your question). Here is the skinny.
What we are actually talking about are two different and separate
phases.
Phase 1
Dynamic array expansion. This is the phase where you add a new
physical unit to an existing array (which may contain multiple logical
arrays). This creates "unused space" in the array which can be used to
create logical arrays or expand existing ones.
Phase 2
Dynamic volume expansion. This is the phase where the
volume/logical array/lun/hdisk gets expanded. We actually tested this
with AIX 5.1 and 5.2. According to the manuals I have read, dynamic
volume expansion is possible on AIX 5.1 and 5.2. This is, however, a
lie. AIX 5.2 is the only revision that is capable of DVE. The extra
capacity is seen by running cfgmgr, but the second step is to adjust the
logical volume to include more pp's. This involves the chvg -g command
(which is only in 5.2). I actually placed a support call about this
that was escalated to "engineering". They basically stated that the
manual is wrong. On the other hand, in AIX 5.2 it works like a charm.
Michael
-----Original Message-----
From: Peter McKay [mailto:Peter.McKay@INFINITY.CO.NZ]
Sent: Wednesday, July 30, 2003 9:10 PM
To: aix-l@Princeton.EDU
Subject: FAStT 600 and AIX
Good people,
I'm trying to understand some of the technology in the
FAStT storage management in regards to AIX. The marketing from IBM
suggests that only Netware, Linux, Win2K Dynamic Disks, and Winnt4
logical disks on a FAStT array can be capacity expanded.
If I expand a logical volume (on the FAStT) can I then
utilize the extra capacity with AIX 5? My assumption is yes, because
the Logical Volume Manager will see the extra capacity (may have to run
cfgmgr) and will then be able to be expanded.
Kind Regards,
Peter McKay
Technical Consultant
Infinity Solutions
Unit 3, 1 Show Place
Addington, Christchurch
Ph: (03) 9637965, Mob: (027) 2301884
Fx: (03) 9637941
www.infinitysolutions.co.nz
<http://www.infinitysolutions.co.nz/>
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