I've had a few people suggest I'd get better write/read speeds in the GZ if I ran a raid10 type zpool instead of raidz.
I finally got my disk controller squared away and am doing some testing with different zpool configs. I'm seeing better write speed with raidz than I am with a raid10 type zpool. In both cases, I'm using 4x1TB disks and I'm writing to the /opt/ dir in the GZ with dd=/dev/zero if=file.tst bs=1M count=15000 Then in another shell session, I'm running zpool iostat 1 and watching write speed. With raidz I'm seeing 300-350mb/sec with a raid10 type setup I'm seeing around 200-250 mb/sec/ Am I missing something or am I looking at performance wrong? Is the real performance gain with the raid10 zpool when you are running multiple VMs or some such? Thanks, Greg
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