Yep, moving volumes on the fly is something we really appreciate with GX (and will do with 8 in cluster mode). It's pretty transparent from a client point of view (literally < 1 second access delay).
The only headache is NDMP backups of those volumes as they obviously need to be updated to reflect the new location.
-----Original Message----- From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of John Stoffel Sent: 04 June 2009 13:49 To: Glenn Walker Cc: 'John Stoffel'; 'Babar Haq'; toasters@mathworks.com Subject: RE: HSM/ILM for Netapp
Glenn> Honestly, moving volumes between aggregates (and controllers) Glenn> is the only thing I'm really looking forward to out of ONTAP 8. Glenn> If all blocks are just virtual pointers now, it makes no sense Glenn> that we cannot move volumes between aggregates and it is a huge Glenn> issue for us today.
Hmm... will you be able to move volumes live? I assume you'll need to have the free space in the destination aggr to hold the entire vol you're moving, but that should be ok then.
Just keeping the data live and in production during such moves would be a huge help.
Glenn> If they bump the limit beyond 32TB, I care less - most of our Glenn> volumes we keep rather small to assist with backup limitations Glenn> and/or reduction of single points of failure.
Sure, I agree too. I might even start to use more volumes then, instead of qtrees within volumes.
John
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