RE: Device mapper multipathing
- From: D'Hooge Freek <Freek.DHooge@xxxxxxxxx>
- To: "zhuchao@xxxxxxxxx" <zhuchao@xxxxxxxxx>, "Luca.Canali@xxxxxxx" <Luca.Canali@xxxxxxx>
- Date: Tue, 11 Jan 2011 09:45:09 +0100
Hi,
Can you post the contents of your /etc/multipath.conf file or the output of
multipath -ll
Possibly this is just a configuration setting.
Regards,
Freek D'Hooge
Uptime
Oracle Database Administrator
email: freek.dhooge@xxxxxxxxx
tel +32(0)3 451 23 82
http://www.uptime.be
disclaimer: www.uptime.be/disclaimer
---
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Zhu,Chao
Sent: dinsdag 11 januari 2011 6:59
To: Luca.Canali@xxxxxxx
Cc: oracle-l
Subject: Re: Device mapper multipathing
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@xxxxxxx> 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.
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Regards
Zhu Chao
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