* Re: [Qemu-devel] RBD trim / unmap support?
[not found] ` <50938DA0.6090205@profihost.ag>
@ 2012-11-02 14:18 ` Stefan Priebe - Profihost AG
0 siblings, 0 replies; only message in thread
From: Stefan Priebe - Profihost AG @ 2012-11-02 14:18 UTC (permalink / raw)
To: Josh Durgin; +Cc: ceph-devel@vger.kernel.org, qemu-devel
Hello qemu list,
i cc you as i'm not sure where the problem is.
When i use scsi-hd with discard_granularity the discard works fine on
target size but the client print these - immediatly after sending
discard / trim commands with mkfs.btrfs.
> [ 75.076895] sd 2:0:0:4: [sdc]
> [ 75.078353] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
> [ 75.079377] sd 2:0:0:4: [sdc]
> [ 75.080410] Sense Key : Aborted Command [current]
> [ 75.081446] sd 2:0:0:4: [sdc]
> [ 75.082459] Add. Sense: I/O process terminated
> [ 75.083466] sd 2:0:0:4: [sdc] CDB:
> [ 75.084473] Write same(16): 93 08 00 00 00 00 00 00 00 00 00 7f ff ff
> 00 00
> [ 75.085535] end_request: I/O error, dev sdc, sector 0
> [ 75.086567] sd 2:0:0:4: [sdc]
> [ 75.087569] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
> [ 75.088605] sd 2:0:0:4: [sdc]
> [ 75.089610] Sense Key : Aborted Command [current]
> [ 75.090630] sd 2:0:0:4: [sdc]
> [ 75.091631] Add. Sense: I/O process terminated
> [ 75.092621] sd 2:0:0:4: [sdc] CDB:
> [ 75.093579] Write same(16): 93 08 00 00 00 00 00 7f ff ff 00 7f ff ff
> 00 00
> [ 75.094581] end_request: I/O error, dev sdc, sector 8388607
> [ 75.095558] sd 2:0:0:4: [sdc]
> [ 75.096561] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
> [ 75.097553] sd 2:0:0:4: [sdc]
> [ 75.098520] Sense Key : Aborted Command [current]
> [ 75.099484] sd 2:0:0:4: [sdc]
> [ 75.100471] Add. Sense: I/O process terminated
> [ 75.101439] sd 2:0:0:4: [sdc] CDB:
> [ 75.102432] Write same(16): 93 08 00 00 00 00 00 ff ff fe 00 7f ff ff
> 00 00
> [ 75.103464] end_request: I/O error, dev sdc, sector 16777214
> [ 75.104503] sd 2:0:0:4: [sdc]
> [ 75.105507] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
> [ 75.106514] sd 2:0:0:4: [sdc]
> [ 75.107525] Sense Key : Aborted Command [current]
> [ 75.108545] sd 2:0:0:4: [sdc]
> [ 75.109525] Add. Sense: I/O process terminated
> [ 75.110487] sd 2:0:0:4: [sdc] CDB:
> [ 75.111418] Write same(16): 93 08 00 00 00 00 01 7f ff fd 00 7f ff ff
> 00 00
> [ 75.112419] end_request: I/O error, dev sdc, sector 25165821
> [ 75.238627] sd 2:0:0:4: [sdc]
> [ 75.239946] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
> [ 75.241197] sd 2:0:0:4: [sdc]
> [ 75.242097] Sense Key : Aborted Command [current]
> [ 75.242627] sd 2:0:0:4: [sdc]
> [ 75.242627] Add. Sense: I/O process terminated
> [ 75.242627] sd 2:0:0:4: [sdc] CDB:
> [ 75.242627] Write same(16): 93 08 00 00 00 00 01 ff ff fc 00 7f ff ff
> 00 00
> [ 75.242627] end_request: I/O error, dev sdc, sector 33554428
> [ 75.447311] sd 2:0:0:4: [sdc]
> [ 75.448505] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
> [ 75.449392] sd 2:0:0:4: [sdc]
> [ 75.450262] Sense Key : Aborted Command [current]
> [ 75.451134] sd 2:0:0:4: [sdc]
> [ 75.451312] Add. Sense: I/O process terminated
> [ 75.451312] sd 2:0:0:4: [sdc] CDB:
> [ 75.451312] Write same(16): 93 08 00 00 00 00 02 7f ff fb 00 7f ff ff
> 00 00
> [ 75.451312] end_request: I/O error, dev sdc, sector 41943035
> [ 75.476364] sd 2:0:0:4: [sdc]
> [ 75.477252] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
> [ 75.478135] sd 2:0:0:4: [sdc]
> [ 75.479004] Sense Key : Aborted Command [current]
> [ 75.479891] sd 2:0:0:4: [sdc]
> [ 75.480358] Add. Sense: I/O process terminated
> [ 75.480358] sd 2:0:0:4: [sdc] CDB:
> [ 75.480358] Write same(16): 93 08 00 00 00 00 02 ff ff fa 00 7f ff ff
> 00 00
> [ 75.480358] end_request: I/O error, dev sdc, sector 50331642
> [ 75.496374] sd 2:0:0:4: [sdc]
> [ 75.497202] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
> [ 75.498077] sd 2:0:0:4: [sdc]
> [ 75.498948] Sense Key : Aborted Command [current]
> [ 75.499818] sd 2:0:0:4: [sdc]
> [ 75.500374] Add. Sense: I/O process terminated
> [ 75.500374] sd 2:0:0:4: [sdc] CDB:
> [ 75.500374] Write same(16): 93 08 00 00 00 00 03 7f ff f9 00 7f ff ff
> 00 00
> [ 75.500374] end_request: I/O error, dev sdc, sector 58720249
>
> Stefan
>
> Am 02.11.2012 09:20, schrieb Stefan Priebe - Profihost AG:
>> Am 02.11.2012 00:36, schrieb Josh Durgin:
>>> On 11/01/2012 04:33 PM, Stefan Priebe wrote:
>>>> Hello list,
>>>>
>>>> does rbd support trim / unmap? Or is it planned to support it?
>>>>
>>>> Greets,
>>>> Stefan
>>>
>>> librbd (and thus qemu) support it. The rbd kernel module does not yet.
>>> See http://ceph.com/docs/master/rbd/qemu-rbd/#enabling-discard-trim
>>
>> Thanks! Is there any recommanded value for discard_granularity? With
>> fstrim and iscsi i use 128kb.
>>
>> Stefan
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