Hi Robert, I've read that paper. Thank you for the condescension.
-J On 1/3/07, Robert Milkowski <[EMAIL PROTECTED]> wrote:
Hello Jason, Thursday, January 4, 2007, 1:55:02 AM, you wrote: JJWW> Hi Robert, JJWW> Our X4500 configuration is multiple 6-way (across controllers) RAID-Z2 JJWW> groups striped together. Currently, 3 RZ2 groups. I'm about to test JJWW> write performance against ZFS RAID-10. I'm curious why RAID-Z2 JJWW> performance should be good? I assumed it was an analog to RAID-6. In JJWW> our recent experience RAID-5 due to the 2 reads, a XOR calc and a JJWW> write op per write instruction is usually much slower than RAID-10 JJWW> (two write ops). Any advice is greatly appreciated. I'm not going to describe it again - it was well explain here before. However one simple query to google and: http://blogs.sun.com/roch/entry/when_to_and_not_to -- Best regards, Robert mailto:[EMAIL PROTECTED] http://milek.blogspot.com
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