As others have said,
aggr renames are OK. 
However, I’m not entirely sure why volume renames would be a problem since clients see the junction path rather than
 the actual volume name. 
From:
 owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of
Kennedy, Jeffrey
Sent: 08 July 2011 00:26
To: NDMP List (toasters@mathworks.com)
Subject: RE: aggregate rename
Thanks to everyone who responded.   Looks like renaming an aggregate has zero impact on concurrent client access.
Thanks.
Jeff Kennedy
Qualcomm, Incorporated
QCT Engineering Compute
858-651-6592
From:
 owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of
Kennedy, Jeffrey
Sent: Thursday, July 07, 2011 1:59 PM
To: NDMP List (toasters@mathworks.com)
Subject: aggregate rename
My question is specifically around 8CM but I would be surprised if it applied differently to 7mode.
 
Can an aggregate be renamed without impacting NFS access by clients?  Volumes cannot, obviously, but nowhere
 is a client aware of aggregate info so had I to guess I’d say it could be renamed with impunity.
 
But I’d rather not guess…
 
Thanks.
 
Jeff Kennedy
Qualcomm, Incorporated
QCT Engineering Compute
858-651-6592
 
 
 
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