zhanjinwei wrote:
> Hi:
> I plan to configure the remaining 46 disk on X4500 :
>
> 5x(8+1) raid[z]1 , 1 hot sapre
>
> Any problem?
>
> Does it means I can suffer 2 disk failure for each of the five group?
No. raidz1 offers single parity only. You should consider raidz2 which
offers double parity. Also, spares are a good idea. I have blogged on some
similar configurations and their analysis. For brevity, I didn't include the
8+1 case, I stopped at the 7+1 case, but the trend will continue. For more
info, see:
http://blogs.sun.com/relling/entry/zfs_raid_recommendations_space_performance
-- richard
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