I have the following layout

A 490 with 8 1.8Ghz and 16G mem. 6 6140s with 2 FC controllers using
A1 anfd B1 controller port 4Gbps speed.
Each controller has 2G NVRAM

On 6140s I setup raid0 lun per SAS disks with 16K segment size.

On 490 I created a zpool with 8 4+1 raidz1s

I am getting zpool IO of only 125MB/s with zfs:zfs_nocacheflush = 1 in
/etc/system

Is there a way I can improve the performance. I like to get 1GB/sec IO.

Currently each lun is setup as primary A1 and secondary B1 or vice versa

I also have write cache eanble according to CAM

-- 
Asif Iqbal
PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu
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