Date: Wed, 8 Jan 2014 20:36:13 -0000 From: "Steven Hartland" <killing@multiplay.co.uk> To: "Garrett Wollman" <wollman@csail.mit.edu>, <freebsd-scsi@freebsd.org> Subject: Re: Attempting ATA TRIM on SAS devices? Message-ID: <430F34AB88D44C4BAF31DDC7AD214137@multiplay.co.uk> References: <21197.39676.138433.937002@khavrinen.csail.mit.edu>
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It should only do this if your drive reports it supports
ATA_TRIM by setting the ATA_SUPPORT_DSM_TRIM bit in the
response to an ATA_IDENTIFY command sent to it using ATA
passthrough.
What does the following report:
camcontrol identify da12
Regards
Steve
----- Original Message -----
From: "Garrett Wollman" <wollman@csail.mit.edu>
To: <freebsd-scsi@freebsd.org>
Sent: Wednesday, January 08, 2014 6:37 PM
Subject: Attempting ATA TRIM on SAS devices?
> On a freshly-installed 9.2 system, I see the following:
>
> (da12:mps0:0:59:0): ATA TRIM failed, switching to UNMAP BIO_DELETE
> (da12:mps0:0:59:0): ATA COMMAND PASS THROUGH(16). CDB: 85 0d 06 00 01 00 01 00 00 00 00 00 00 40 06 00
> (da12:mps0:0:59:0): CAM status: SCSI Status Error
> (da12:mps0:0:59:0): SCSI status: Check Condition
> (da12:mps0:0:59:0): SCSI sense: ILLEGAL REQUEST asc:24,0 (Invalid field in CDB)
> (da12:mps0:0:59:0): Error 22, Unretryable error
> (da35:mps0:0:82:0): ATA TRIM failed, switching to UNMAP BIO_DELETE
> (da35:mps0:0:82:0): ATA COMMAND PASS THROUGH(16). CDB: 85 0d 06 00 01 00 01 00 00 00 00 00 00 40 06 00
> (da35:mps0:0:82:0): CAM status: SCSI Status Error
> (da35:mps0:0:82:0): SCSI status: Check Condition
> (da35:mps0:0:82:0): SCSI sense: ILLEGAL REQUEST asc:24,0 (Invalid field in CDB)
> (da35:mps0:0:82:0): Error 22, Unretryable error
>
> da12 and da35 are identified as follows:
>
> [root@nfs-prod-3 /export]# camcontrol inquiry da12
> pass13: <OCZ TALOS2 2.25> Fixed Direct Access SCSI-5 device
> pass13: Serial Number A179E011337000251
> pass13: 600.000MB/s transfers, Command Queueing Enabled
> [root@nfs-prod-3 /export]# camcontrol inquiry da35
> pass36: <OCZ TALOS2 2.25> Fixed Direct Access SCSI-5 device
> pass36: Serial Number A179E011337000234
> pass36: 600.000MB/s transfers, Command Queueing Enabled
>
> Why would it be trying ATA commands here? These are SAS devices.
>
> -GAWollman
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