Displaying 2 results from an estimated 2 matches for "zfs_param".
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zfs_params
2009 Apr 23
1
ZFS SMI vs EFI performance using filebench
...nd using a ZFS mirrored root disk. Our SAN is a top notch NVRAM based SAN. There are lots of discussions using ZFS with SAN based storage.. and it seems ZFS is designed to perform best with dumb disk (JBODs). The test I ran support this observation.. and no matter what kernel tunables I make the zfs_params, I just can''t seem to get the performance from ZFS that I can get out of UFS under the Solaris Volume Manager (SVM). I am using the single LUN test because it performed better than any striping configuration I came up with. We don''t use any software RAID of any kind.. because the...
2007 May 14
37
Lots of overhead with ZFS - what am I doing wrong?
I was trying to simply test bandwidth that Solaris/ZFS (Nevada b63) can deliver from a drive, and doing this:
dd if=(raw disk) of=/dev/null gives me around 80MB/s, while dd if=(file on ZFS) of=/dev/null gives me only 35MB/s!?. I am getting basically the same result whether it is single zfs drive, mirror or a stripe (I am testing with two Seagate 7200.10 320G drives hanging off the same interface