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Re: [dm-devel] do Symmetrix multipath-tools defaults need update ? or scsi-to-blk errors management ?

From: Mike Christie <michaelc cs wisc edu>
To: christophe varoqui free fr
Cc: device-mapper development <dm-devel redhat com>, Levy Jerome <Levy_Jerome emc com>, linux-scsi vger kernel org
Subject: Re: [dm-devel] do Symmetrix multipath-tools defaults need update ? or scsi-to-blk errors management ?
Date: Thu, 11 Jun 2009 00:11:02 -0500

On 06/10/2009 11:58 PM, christophe varoqui free fr wrote:

::: error log on a 2.6.9 (rhel 4.7) kernel :::

For RH 4.9 I did the attached patch. So this error is not fastfailed
(upstream does not fastfail this type of error when using dm-multipath
now). So now the scsi layer will retry its normal 5 times, then fail.

Thank you for the information. This is very good news.
Can you also advise about the rhel 5 minimum kernel version ?

It should be fixed in rhel 5.3 and the change was merged in upstream2.6.28 kernel.

References:
- Re: [dm-devel] do Symmetrix multipath-tools defaults need update ? or scsi-to-blk errors management ?
  - From: christophe . varoqui

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