Patrick P Korsnick wrote:
hi,
i just set up snv_54 on an old p4 celeron system and even tho the processor is
crap, it's got 3 7200RPM HDs: 1 80GB and 2 40GBs. so i'm wondering if there is
an optimal way to lay out the ZFS pool(s) to make this old girl as fast as
possible....
as it stands now i've got the following drive layout:
pri master: 80GB (call it drive1)
pri slave: 40GB (drive 2)
sec master:40GB (drv 3)
sec slave: DVD
(all connected with 80 conductor ribbons)
my partitions are:
drive 1: i've got 2 10GB UFS root slices (so i can do live upgrades), and 1GB
swap slice
i've got one big zpool consisting of a 50GB slice on drive 1 and all of drives 2
& 3.
i'm not sure that this is the optimal layout for striping. i don't need
mirroring or redundancy-- just speed. i'm thinking maybe i'd be better booting
off one of the smaller drives and putting the other two on one controller and
putting the zpool on those only. spanning the two IDE controllers with the
single zpool seems like it might be a bad idea, but i am just postulating
here....
Why not take all but 40GB from the 80 for the OS/Boot, then take the
remaining 40GB, and the 40GB each from Drive 2 and Drive 3 and put it in
a 3 device RaidZ. This will at least give you some redundancy.
-Kyle
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