Displaying 5 results from an estimated 5 matches for "varyio".
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2004 Nov 29
0
Re: Mode context extremely poor performance and varyio
...m, igaste@ares.fr, a.brunel@ilius.net, ocfs-users@oss.oracle.com, ocfs-devel@oss.oracle.com, Stephen Tweedie <sct@redhat.com>
Hi,
On Wed, 2004-11-24 at 22:08, Michael Aubertin wrote:
> Hello, i write to you to having your opinion and may be a little help.
> It seem you write a patch on varyio stack in errata special kernel for
> Itanium. We currently have an issue using OCFS, Secure Path and Qlogic
> driver. According to the source i read, varyio is very close to this
> two driver especialy qlogic. Do you believe, like i begin to do
> regarding the source, that our performan...
2004 Nov 29
0
Re: Mode context extremely poor performance and varyio
...m, igaste@ares.fr, a.brunel@ilius.net, ocfs-users@oss.oracle.com, ocfs-devel@oss.oracle.com, Stephen Tweedie <sct@redhat.com>
Hi,
On Wed, 2004-11-24 at 22:08, Michael Aubertin wrote:
> Hello, i write to you to having your opinion and may be a little help.
> It seem you write a patch on varyio stack in errata special kernel for
> Itanium. We currently have an issue using OCFS, Secure Path and Qlogic
> driver. According to the source i read, varyio is very close to this
> two driver especialy qlogic. Do you believe, like i begin to do
> regarding the source, that our performan...
2004 Jun 21
0
performance when using securepath or powerpath
...If you have performance issues, and you use those products, at the very
least, run the same tests WITHOUT them loaded. and go from there. it
will save you a lot of time and fingerpointing.
One other potential problem is using badly compiled device drivers, if
an FCdriver does not use HIGHMEMIO or Varyio, then the performance will
be very bad, so another suggestion would be to at least give the
distribution shipped (rhat or suse) fc driver a chance as well. even if
it's not certified or supported at least give it a try to compare.
this is just a word of advice. We get too many such questions t...
2003 Nov 11
5
ocfs issues with 9.2.0.3
I am starting to see a few issues with OCFS and 9.2.0.3 RAC on
redHat Linux AS 2.1. Wondering if there is anyone out there
experiencing similar issues...
a few pointers to the issues..
1. OCFS read/write performance is way lower than a read/write to a raw
device.. i can give you some comparison numbers..
2. Writes to shared disk with ocfs would get locked up by one server..
it doesnt have to
2003 Nov 11
5
ocfs issues with 9.2.0.3
I am starting to see a few issues with OCFS and 9.2.0.3 RAC on
redHat Linux AS 2.1. Wondering if there is anyone out there
experiencing similar issues...
a few pointers to the issues..
1. OCFS read/write performance is way lower than a read/write to a raw
device.. i can give you some comparison numbers..
2. Writes to shared disk with ocfs would get locked up by one server..
it doesnt have to