On 09/18/2009 02:09 AM, Martin K. Petersen wrote:
"Ric" == Ric Wheeler<rwheeler@xxxxxxxxxx> 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
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