Mixing disk sizes in an aggregate is not a problem as long
as you create RAID groups for each kind of disk. WAFL creates stripes at
the RAID group level. For best results create complete RAID groups each
time you add disks to an aggregate.
Paulb
Greetings fellow toasters!
<Background>
We're looking at moving our 2 FAS940 systems from
tradtional volumes to flexvols + aggregates.
</Background>
It would
seem to me that the same rules and guidelines for creating traditional volumes
now apply directly to the aggregate level (for the most part). By rules
and guidelines I mean things like trying not to mix disk sizes, try to avoid
volumes (now aggregates?) that span FC adapters, etc.
Are any of these things still a concern on modern
versions of ONTAP (7+)? Does anyone have any best practices they'd be
willing to share in regards to aggregate creation? NOW says "make them as
big as possible using as many spindles as possible", but that doesn't really
help much. We use our filers for unstructured data only; cifs + nfs but no
databases, no snapmirror, no snapvault, etc..
TIA,
Jeff Mery - MCSE, MCP
National
Instruments
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"Allow
me to extol the virtues of the Net Fairy, and of all the fantastic
dorks that
make the nice packets go from here to there. Amen."
TB - Penny
Arcade
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