* Re: scsi timeout on multipath
@ 2017-03-03 9:17 Muneendra Kumar M
0 siblings, 0 replies; 2+ messages in thread
From: Muneendra Kumar M @ 2017-03-03 9:17 UTC (permalink / raw)
To: dm-devel
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Any input here will help me a lot.
Regards,
Muneendra.
From: Muneendra Kumar M
Sent: Tuesday, February 21, 2017 6:58 PM
To: 'dm-devel@redhat.com' <dm-devel@redhat.com>
Subject: scsi timeout on multipath
Hi ,
On a multipath network if we see a scsi timeout on a particular path at what instance we will mark the path as failed.
Whether we will mark the path as failed when SCSI mid level failed to attempts error recovery by doing the below steps.
* the SCSI command that has timed out is aborted
* a SCSI device reset is attempted
* a SCSI bus reset is attempted. Note this may have an adverse effect on other devices sharing that SCSI bus.
* a SCSI host (bus adapter) reset is attempted. This is an attempt to re-initialize the adapter card associated with the SCSI device that has the timed out command.
Any info here will help me a lot.
Regards,
Muneendra.
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* scsi timeout on multipath
@ 2017-02-21 13:27 Muneendra Kumar M
0 siblings, 0 replies; 2+ messages in thread
From: Muneendra Kumar M @ 2017-02-21 13:27 UTC (permalink / raw)
To: dm-devel
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Hi ,
On a multipath network if we see a scsi timeout on a particular path at what instance we will mark the path as failed.
Whether we will mark the path as failed when SCSI mid level failed to attempts error recovery by doing the below steps.
* the SCSI command that has timed out is aborted
* a SCSI device reset is attempted
* a SCSI bus reset is attempted. Note this may have an adverse effect on other devices sharing that SCSI bus.
* a SCSI host (bus adapter) reset is attempted. This is an attempt to re-initialize the adapter card associated with the SCSI device that has the timed out command.
Any info here will help me a lot.
Regards,
Muneendra.
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^ permalink raw reply [flat|nested] 2+ messages in thread
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