2 Feb
2011
2 Feb
'11
10:24 p.m.
Have an aggregate comprised of 300GB disks and have two new shelves with 450GB disks.
I ran across this[1] which describes some concerns when dealing with disks of mixed sizes.
It sounds like I can't specify that 450GB disks and 300GB disks be assigned to distinct raid groups (my raid size is 16), so if I add the 450GB disks to my aggregate, I'll likely only be able to use 300GB of them.
Therefore I should create a new aggregate for the 450GB disks.
Is my understanding of this correct?
Also, the raid size seems to default to 16 -- I'm used to keeping RAID-6 raid groups to 9 disks at most. Is 16 OK?
Thanks, Ray
[1] http://now.netapp.com/NOW/knowledge/docs/ontap/rel7261/html/ontap/smg/provis...