. Thank you for your cooperation.
-Original Message-
From: Duerbusch, Tom [mailto:duerbus...@stlouis-mo.gov]
Sent: Wednesday, October 10, 2012 11:37 AM
Subject: Re: HyperPAV and LVM striping
So that might have been my problem (but not necessarily limited to that
one).
I was on Suse 10
application.
Tom Duerbusch
THD Consulting
On Tue, Oct 9, 2012 at 5:50 PM, Brad Hinson bhin...@redhat.com wrote:
Hi folks,
What are the best practices for HyperPAV and LVM striping? I assumed that
if you have HyperPAV enabled, you don't need to stripe the data. Is this
true, or if not, what
On 10/10/2012 at 11:35 AM, Duerbusch, Tom duerbus...@stlouis-mo.gov
wrote:
Just speaking to LVM...
Striping the data across multiple volumes (which in modern dasd is already
stripped in the Raid array), would give you the best performance.
Especially if you can strip across multiple
PM, Brad Hinson bhin...@redhat.com wrote:
Hi folks,
What are the best practices for HyperPAV and LVM striping? I assumed
that
if you have HyperPAV enabled, you don't need to stripe the data. Is this
true, or if not, what is the best practice for optimum performance?
I have lots
On Wed, Oct 10, 2012 at 12:53 PM, Mark Post mp...@suse.com wrote:
On 10/10/2012 at 11:35 AM, Duerbusch, Tom duerbus...@stlouis-mo.gov
wrote:
Just speaking to LVM...
Striping the data across multiple volumes (which in modern dasd is already
stripped in the Raid array), would give you
On Wed, Oct 10, 2012 at 12:53 PM, Mark Post mp...@suse.com wrote:
On 10/10/2012 at 11:35 AM, Duerbusch, Tom duerbus...@stlouis-mo.gov
wrote:
Just speaking to LVM...
Striping the data across multiple volumes (which in modern dasd is already
stripped in the Raid array), would give you
So that might have been my problem (but not necessarily limited to that
one).
I was on Suse 10 system. I initially stripped the LVM. When it got nearly
full, I tried to add a pack. Couldn't do it. So I went back and recreated
the LVM without striping and I could add a pack. I want to say
Hi folks,
What are the best practices for HyperPAV and LVM striping? I assumed that if
you have HyperPAV enabled, you don't need to stripe the data. Is this true, or
if not, what is the best practice for optimum performance?
I have lots of mod-9 ECKD with HyperPAV enabled, so I want to use
practices for HyperPAV and LVM striping? I assumed that
if you have HyperPAV enabled, you don't need to stripe the data. Is this
true, or if not, what is the best practice for optimum performance?
I have lots of mod-9 ECKD with HyperPAV enabled, so I want to use LVM. So
my two choices
will spread the I/O to both
PVs, and HyperPAV will assign 2 aliases to each PV since I'm banging on them
both.
- #2, for the case without LVM striping, HyperPAV will assign 4 aliases to
the first PV since that's the only one in use.
In either case, it seems I'm using all 4 aliases, so seems like I
, for the case with LVM striping enabled, LVM will spread the I/O to both
PVs, and HyperPAV will assign 2 aliases to each PV since I'm banging on them
both.
- #2, for the case without LVM striping, HyperPAV will assign 4 aliases to
the first PV since that's the only one in use.
In either case
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