Re: Device mapper multipathing

From: Zhu,Chao <zhuchao_at_gmail.com>
Date: Tue, 11 Jan 2011 13:58:35 +0800
Message-ID: <AANLkTikWbn=AnEs52+Cv=JgPMtCLJumWvVtn-rox7C27_at_mail.gmail.com>

not sure if anyone else has updated this thread since it was posted; We ran into issue of delayed path failover (when one path dies/disabled, all IO hang for 30sec-2 min);
it wasn't that optimal to have that time IO totally freezed;

We were using redhat 5.4 and also tried oracle enterprise kernel;

Would be great to hear more inputs;

Thx

On Wed, Nov 29, 2006 at 7:08 PM, Luca Canali <Luca.Canali_at_cern.ch> wrote:

> Hi,
>
> Is anybody who has used device mapper for Linux willing to share their
> experience?
>
> I have been using Qlogic multipathing so far with the qla2300_conf
> module on RHEL3. No problem with it, but I am moving to RHEL4 and the
> needed qla2xxx_conf module is missing from their rmps distribution. So
> instead I have done a few tests with device mapper multipathing, seems
> to work fine so far, but nothing can beat real world experience.
>
> Thanks,
> L.
> --
> http://www.freelists.org/webpage/oracle-l
>
>
>

-- 
Regards
Zhu Chao

--
http://www.freelists.org/webpage/oracle-l

Received on Mon Jan 10 2011 - 23:58:35 CST