zfs discuss - Aug 2011 - zfs-discuss Digest, Vol 70, Issue 37

Please check whether you have latest '' MPT '' patch installed
on your server
? If not , please install MPT patch . It will fix the issue .

Regards,
Gowrisankar .

On Thu, Aug 18, 2011 at 5:30 PM, <zfs-discuss-request at
opensolaris.org>wrote:
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>   1. Re: solaris 10u8 hangs with message Disconnected  command
>      timeout for Target 0 (Richard Elling)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 17 Aug 2011 17:20:23 -0700
> From: Richard Elling <richard.elling at gmail.com>
> To: Ding Honghui <hhding.gnu at gmail.com>
> Cc: zfs-discuss at opensolaris.org
> Subject: Re: [zfs-discuss] solaris 10u8 hangs with message
>        Disconnected    command timeout for Target 0
> Message-ID: <F4778486-39E8-4B0E-A543-DDA2D851C968 at gmail.com>
> Content-Type: text/plain; charset=iso-8859-1
>
> On Aug 15, 2011, at 11:17 PM, Ding Honghui wrote:
> > My solaris storage hangs. I login to the console and there is
messages[1]
> display on the console.
> > I can''t login into the console and seems the IO is totally
blocked.
> >
> > The system is solaris 10u8 on Dell R710 with disk array Dell MD3000. 2
> HBA cable connect the server and MD3000.
> > The symptom is random.
>
> This symptom is consistent with a broken SATA disk behind a SAS expander.
>
> Unfortunately, the mpt driver is closed source, so we can only infer what
> the
> code does by using the open source mpt_sas driver as (hopefully) a
> derivative.
>
> >
> > It is very appreciated if any one can help me out.
> >
> > Regards,
> > Ding
> >
> > [1]
> > Aug 16 13:14:16 nas-hz-02 scsi: WARNING: /pci at 0,0/pci8086,3410 at 9
> /pci8086,32c at 0/pci1028,1f04 at 8 (mpt1):
> > Aug 16 13:14:16 nas-hz-02       Disconnected command timeout for
Target 0
>
> A command did not complete and the mpt driver reset the target.
> If that target is an expander, then everything behind the expander can
> reset, resulting in the aborts of any in-flight commands, as follows...
>
> > Aug 16 13:14:16 nas-hz-02 scsi: WARNING:
> /scsi_vhci/disk at g60026b900053aa18000002a44b8f0ded (sd47):
> > Aug 16 13:14:16 nas-hz-02       Error for Command: write(10)
>   Error Level: Retryable
> > Aug 16 13:14:16 nas-hz-02 scsi:         Requested Block: 1380679073
>          Error Block: 1380679073
> > Aug 16 13:14:16 nas-hz-02 scsi:         Vendor: DELL
>           Serial Number:
> > Aug 16 13:14:16 nas-hz-02 scsi:         Sense Key: Unit Attention
> > Aug 16 13:14:16 nas-hz-02 scsi:         ASC: 0x29 (device internal
> reset), ASCQ: 0x4, FRU: 0x0
> > Aug 16 13:14:16 nas-hz-02 scsi: WARNING:
> /scsi_vhci/disk at g60026b900053aa180000029e4b8f0d61 (sd41):
> > Aug 16 13:14:16 nas-hz-02       Error for Command: write(10)
>   Error Level: Retryable
> > Aug 16 13:14:16 nas-hz-02 scsi:         Requested Block: 1380679072
>          Error Block: 1380679072
> > Aug 16 13:14:16 nas-hz-02 scsi:         Vendor: DELL
>           Serial Number:
> > Aug 16 13:14:16 nas-hz-02 scsi:         Sense Key: Unit Attention
> > Aug 16 13:14:16 nas-hz-02 scsi:         ASC: 0x29 (device internal
> reset), ASCQ: 0x4, FRU: 0x0
> > Aug 16 13:14:16 nas-hz-02 scsi: WARNING:
> /scsi_vhci/disk at g60026b900053aa18000002a24b8f0dc5 (sd45):
> > Aug 16 13:14:16 nas-hz-02       Error for Command: write(10)
>   Error Level: Retryable
> > Aug 16 13:14:16 nas-hz-02 scsi:         Requested Block: 1380679073
>          Error Block: 1380679073
> > Aug 16 13:14:16 nas-hz-02 scsi:         Vendor: DELL
>           Serial Number:
> > Aug 16 13:14:16 nas-hz-02 scsi:         Sense Key: Unit Attention
> > Aug 16 13:14:16 nas-hz-02 scsi:         ASC: 0x29 (device internal
> reset), ASCQ: 0x4, FRU: 0x0
> > Aug 16 13:14:16 nas-hz-02 scsi: WARNING:
> /scsi_vhci/disk at g60026b900053aa180000029c4b8f0d35 (sd39):
> > Aug 16 13:14:16 nas-hz-02       Error for Command: write(10)
>   Error Level: Retryable
> > Aug 16 13:14:16 nas-hz-02 scsi:         Requested Block: 1380679072
>          Error Block: 1380679072
> > Aug 16 13:14:16 nas-hz-02 scsi:         Vendor: DELL
>           Serial Number:
> > Aug 16 13:14:16 nas-hz-02 scsi:         Sense Key: Unit Attention
> > Aug 16 13:14:16 nas-hz-02 scsi:         ASC: 0x29 (device internal
> reset), ASCQ: 0x4, FRU: 0x0
> > Aug 16 13:14:16 nas-hz-02 scsi: WARNING:
> /scsi_vhci/disk at g60026b900053aa18000002984b8f0cd2 (sd35):
> > Aug 16 13:14:16 nas-hz-02       Error for Command: write(10)
>   Error Level: Retryable
> > Aug 16 13:14:16 nas-hz-02 scsi:         Requested Block: 1380679072
>          Error Block: 1380679072
> > Aug 16 13:14:16 nas-hz-02 scsi:         Vendor: DELL
>           Serial Number:
> > Aug 16 13:14:16 nas-hz-02 scsi:         Sense Key: Unit Attention
> > Aug 16 13:14:16 nas-hz-02 scsi:         ASC: 0x29 (device internal
> reset), ASCQ: 0x4, FRU: 0x0
>
> You will be happiest if you do not use SATA disks directly connected to SAS
> expanders.
>  -- richard
>
>
>
> ------------------------------
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> End of zfs-discuss Digest, Vol 70, Issue 37
> *******************************************
>
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