Hello Luke,
Tuesday, August 8, 2006, 4:48:38 PM, you wrote:
LL> Does snv44 have the ZFS fixes to the I/O scheduler, the ARC and the
prefetch logic?
LL> These are great results for random I/O, I wonder how the sequential I/O
looks?
LL> Of course you'll not get great results for sequential I/O on the 3510 :-)
filebench/singlestreamread v440
1. UFS, noatime, HW RAID5 6 disks, S10U2
70MB/s
2. ZFS, atime=off, HW RAID5 6 disks, S10U2 (the same lun as in #1)
87MB/s
3. ZFS, atime=off, SW RAID-Z 6 disks, S10U2
130MB/s
4. ZFS, atime=off, SW RAID-Z 6 disks, snv_44
133MB/s
ps.
With software RAID-Z I got about 940ms/s :)))) well, after files were
created they were all cached and ZFS almost didn't touch a disks :)
ok, I changed filesize to be well over memory size of the server and
above results are with that larger filesize.
filebench/singlestreamwrite v440
1. UFS, noatime, HW RAID-5 6 disks, S10U2
70MB/s
2. ZFS, atime=off, HW RAID-5 6 disks, S10U2 (the same lun as in #1)
52MB/s
3. ZFS, atime=off, SW RAID-Z 6 disks, S10U2
148MB/s
4. ZFS, atime=off, SW RAID-Z 6 disks, snv_44
147MB/s
So sequential writing in ZFS on HWR5 is actually worse than UFS.
--
Best regards,
Robert mailto:[EMAIL PROTECTED]
http://milek.blogspot.com
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