I have not done this recently so I was hoping someone on the list has. Basically I need to decomission a loop on an existing filer and migrate the shelves to another filer. I need to do this with the original filer live and running no downtime can be incurred.
the aggregate has been destroyed the disks were all zeroed and are now spares i have verified each individual disk resides in the shelfs/loop i need to remove and no data/root disks are in this loop
cluster failover will be disabled during this procedure.
at this point i should be able to remove the optical loop cabling and the filer will complain but otherwise keep on running correct?
thanks for any input in advance
-- Daniel Leeds Manager, Storage Operations Edmunds, Inc. 1620 26th Street, Suite 400 South Santa Monica, CA 90404
310-309-4999 desk 310-430-0536 cell
I don't believe this is an official supported procedure. There are reports that it has worked, but there are others that it has caused crashes. I would wait until you can take a quick downtime before doing this.
-- Adam Fox adamfox@netapp.com
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From: Leeds, Daniel [mailto:dleeds@edmunds.com] Sent: Monday, October 15, 2007 4:26 PM To: toasters@mathworks.com Subject: removing a loop from running filer
I have not done this recently so I was hoping someone on the list has. Basically I need to decomission a loop on an existing filer and migrate the shelves to another filer. I need to do this with the original filer live and running no downtime can be incurred.
the aggregate has been destroyed the disks were all zeroed and are now spares i have verified each individual disk resides in the shelfs/loop i need to remove and no data/root disks are in this loop
cluster failover will be disabled during this procedure.
at this point i should be able to remove the optical loop cabling and the filer will complain but otherwise keep on running correct?
thanks for any input in advance
-- Daniel Leeds Manager, Storage Operations Edmunds, Inc. 1620 26th Street, Suite 400 South Santa Monica, CA 90404
310-309-4999 desk 310-430-0536 cell
Last time I checked when I left NetApp in Jan, hot removal was not officially supported even if you destroyed the aggregate and made the disks spares. There was mixed results on whether it worked. Looks like they finally officially documented it in the DS14 shelf guide.
http://now.netapp.com/NOW/knowledge/docs/hardware/filer/ds14hwsv.pdf
Page 34
Caution
Hot removal of disk shelves is not supported. Shutdown of filer/FAS appliance is required to remove shelves from system.
Try at your own risk and results may vary.
It might be worth taking the <1 min downtime to halt the filer, pull the 2 cables quickly and boot up as opposed to taking the chance it might panic, dump core, try and pull the cables fast enough before it reboots....
Dave Rubright Jr 4Base Technology, Inc
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From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Leeds, Daniel Sent: Monday, October 15, 2007 1:26 PM To: toasters@mathworks.com Subject: removing a loop from running filer
I have not done this recently so I was hoping someone on the list has. Basically I need to decomission a loop on an existing filer and migrate the shelves to another filer. I need to do this with the original filer live and running no downtime can be incurred. the aggregate has been destroyed the disks were all zeroed and are now spares i have verified each individual disk resides in the shelfs/loop i need to remove and no data/root disks are in this loop cluster failover will be disabled during this procedure. at this point i should be able to remove the optical loop cabling and the filer will complain but otherwise keep on running correct? thanks for any input in advance -- Daniel Leeds Manager, Storage Operations Edmunds, Inc. 1620 26th Street, Suite 400 South Santa Monica, CA 90404 310-309-4999 desk 310-430-0536 cell
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Dave Rubright -
Fox, Adam -
Leeds, Daniel