From: Ric Wheeler <rwheeler@redhat.com>
To: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Will Drewry <redpig@dataspill.org>,
Andreas Dilger <adilger@sun.com>,
linux-ext4@vger.kernel.org
Subject: Re: [PATCH][RFC] resize2fs and uninit_bg questions
Date: Fri, 18 Sep 2009 07:43:04 -0400 [thread overview]
Message-ID: <4AB37248.4050309@redhat.com> (raw)
In-Reply-To: <yq1ocp8943k.fsf@sermon.lab.mkp.net>
On 09/18/2009 02:09 AM, Martin K. Petersen wrote:
>>>>>> "Ric" == Ric Wheeler<rwheeler@redhat.com> writes:
>>>>>>
> Ric> One note - the WRITE_SAME command in SCSI has long been used by
> Ric> array vendors to do relatively high performance zero fills.
>
> I've been working on WRITE SAME and UNMAP support recently (layering on
> top of Christoph's patch kit). It might be worthwhile to expose the
> WRITE SAME functionality further up the stack. It could also be helpful
> for initializing RAID disks, for instance...
>
>
Using it to initialize RAID disks is exactly what it is there for - that
sounds quite useful...
ric
next prev parent reply other threads:[~2009-09-18 11:42 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-16 16:24 [PATCH][RFC] resize2fs and uninit_bg questions Will Drewry
2009-09-16 19:08 ` Andreas Dilger
2009-09-16 20:42 ` Will Drewry
2009-09-16 21:22 ` Andreas Dilger
2009-09-16 23:11 ` Will Drewry
2009-09-17 19:28 ` Ric Wheeler
2009-09-18 6:09 ` Martin K. Petersen
2009-09-18 11:43 ` Ric Wheeler [this message]
2009-09-18 13:56 ` Andreas Dilger
2009-09-19 12:19 ` Will Drewry
2009-09-23 9:34 ` Andreas Dilger
2009-09-23 19:28 ` Will Drewry
2009-09-25 6:21 ` Andreas Dilger
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