Personally, I would do the following
assuming you are using 300GB drives:
loop1 - aggr1 - three 7+2 rg's
loop2 - aggr2 - three 7+2 rg's
2 spares
=56 drives - 4 shelves
This gives you an even spread across
both aggr's that you can easily expand on in the future. With the
current aggr max size limitation I would steer away from building a single
aggr close to the max size out of the gate. This build will make
expansion very scalable, and go-live performance more than acceptable.
With two aggr's you also have the flexibility to move exceptionally
chatty vfilers to separate spindles.
Regards,
Scott
Internet
westlaguy@gmail.com
Sent by: owner-toasters@mathworks.com
07/10/2008 02:46 PM
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| toasters
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Subject
| multistore/vfiler and aggregate
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hi,
i have a customer who will be using multistore/vfilers of random workloads
all over nfs.
my view for an overall performance perspective
is two controllers and
multiple raid groups per aggregate evenly spread. ie, if i had 5
FCAL
shelves i could create 2 aggregates comprised of 2 16 disk raid groups
spread across both controllers and all shelves
however their budget can at max allow
4 shelves which would leave one
aggregate with 2 raid groups, the other with one and more spares since
i
would not want to add a half sized raidgroup.
the idea being that the vfilers would
be split evenly across aggregates to
better spread ops load across the drives
but realistically will that gain better
performance versus a single
aggregate with 3 raidgroups spread across both controllers and all drives?
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