Hello Bob,
Wednesday, October 15, 2008, 9:45:52 PM, you wrote:
BF> On Wed, 15 Oct 2008, Tomas Ögren wrote:
>>> ZFS does not support RAID0 (simple striping).
>>
>> zpool create mypool disk1 disk2 disk3
>>
>> Sure it does.
BF> This is load-share, not RAID0. Also, to answer the other fellow,
BF> since ZFS does not support RAID0, it also does not support RAID 1+0
BF> (10). :-)
BF> With RAID0 and 8 drives in a stripe, if you send a 128K block of data,
BF> it gets split up into eight chunks, with a chunk written to each
BF> drive. With ZFS's load share, that 128K block of data only gets
Well, it depends on your stripe width - generally it would be true
only if your strip with would be of 16KB, If you set-up 128KB stripe
width you would end-up with one or two IO/s to one or two disk drives
depending if your write was stripe aligned or not.
ZFS will make sure that every fs block is stripe aligned when doing
raid-0 like configuration (aka zfs dynamic striping). However it's not
true for raid-z{1|2}
--
Best regards,
Robert Milkowski mailto:[EMAIL PROTECTED]
http://milek.blogspot.com
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