Yep, also I know you said it was a new aggregate, but if it had data on it, you would want to run volume reallocates after or you would  have hot spots on the new empty disks. 

 

From: toasters-bounces@teaparty.net [mailto:toasters-bounces@teaparty.net] On Behalf Of Payne, Richard
Sent: Wednesday, February 25, 2015 2:25 PM
To: Woods, Bill; toasters@teaparty.net
Subject: RE: Adding disks to existing aggregates

 

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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