Just to add to the slew of responses: Like Richard said, it's the default behaviour.
The man page says: If the -g option is not used, the disks are added _to the most recently created RAID group until it is full_, and _then one or more new RAID groups are created_ and the remaining disks are added to new groups. Any other _existing RAID groups_ that are not full _remain_ partially filled.
One of those cases where I actually prefer the GUI...
Sebastian
On 2/25/2015 8:24 PM, Payne, Richard wrote:
I think by default it only adds disks to the ‘last’ (or highest number raid group) . You have to use the –g <raid-group> option to add to ‘other’ raid groups.
So if you changed the aggr size to 16, you then want to add 4 disks that rg0, then add 4 disks to rg1.
Then you want to run reallocate on the volumes.
--rdp
*From:*toasters-bounces@teaparty.net [mailto:toasters-bounces@teaparty.net] *On Behalf Of *Woods, Bill *Sent:* Wednesday, February 25, 2015 2:15 PM *To:* toasters@teaparty.net *Subject:* Adding disks to existing aggregates
Hello toasters,
A few weeks ago, I had the opportunity to destroy an aggregate in order to consolidate capacity. I started off with two aggregates, each with two RG and both aggr were 600GB drives only the older drives were FC/15K whereas the new aggregate is SAS/10K (I know you can mix RPMs and I’m ok with that). What I’m not ok with is what happened when I attempted to add 8 drives to the new aggregate. The current RG size was 12 and there were 12 drives in the first RG and 11 in the second, I then changed the RG size to 16 and added the drives to the aggregate (expecting to add 4 in each RG). But what really happened is that OnTap added 5 drives to RG1 and created RG2 with the remaining 3 drives.
Support couldn’t find any documentation on this and (I knew this) that it could only be corrected by destroying the aggregate. Have any of you experienced this?
Thanks,
Bill
-Long time lurker, first time poster
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