Hmm it could be worth checking the fc switch log also if you get stuck.
Per
Sent from my iPhone
On 8 Jan 2010, at 15:37, Paras pradhan <[email protected]> wrote:
Per,
Yes I have a device mapper out of my detected LUNS. My storage is
Hitachi OpenV . My multipath.conf files looks like below. Do I need
to add anything to it since failover is not working. When I unplugg
the cable in the 1st port of my HBA... my server reboots and I don't
know what is causing this reboot. And after reboot when I plug the
cable back, no recovery is done and to make it work I have to reboot
the server once again with cable plugged.
--
blacklist {
devnode "^sda"
}
defaults {
user_friendly_names yes
failback immediate
}
-------
Thanks
Paras
On Fri, Jan 8, 2010 at 4:42 AM, Per Qvindesland <[email protected]>
wrote:
Hi
For sure no problems, I see this about everyday, the major reason is
that the rh driver is not certified for use with Dell,HP or IBM for
that matter, if we get a support request where I work and the RH
driver is used for the qlogic card then customer must install the
certified driver from the vendor, this has a lot to do with
compabillity with the bios etc, I am not saying that the RH driver
is bad it is just unsupported by most vendors.
Regards
Per
At Fredag, 08-01-2010 on 11:06 "Alexander Dalloz" <ad+li...@uni-
x.org> wrote:
> Hi
>
> Not sure if you have done this already but install multipath as
the os
> sees multiple presented luns which needs to be tied up to one by
> multipath also do not use the rh drivers for you qlogic it's not
> recommended at all for any storage solutions.
>
> Per
Dear Per,
can you please elaborate why the QLogic kernel module shipping with
CentOS
5 / RHEL 5 is not recommended? It for sure is documented to be used at
least in the NetApp host utilities guide, without any warning to
prefer
the driver package provided on the QLogic site. And I do not see any
problem using it with CentOS / RHEL 5 device-mapper-multipath on a
lot of
systems.
Regards
Alexander
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