Flether,
I never did it at 8.x, but I did do a a couple of times at 7.3.2. It worked fine. I just did one connection at the top of the stack at a time, but doing both should work.
I'll assume the speed settings on the back of the shelves are are set correctly for whatever you have the hooked into. You don't want to mix the shelf speeds.
Jeff
On Tue, May 21, 2013 at 5:34 PM, Fletcher Cocquyt fcocquyt@stanford.eduwrote:
This is something I've never had reason to attempt until now.
We have a 3270 cluster (8.1.2) Head 2 aggr1 consists of these two multipathed DS14MK4 trays (IDs 1,2):
http://i.imgur.com/821iN35.jpg
We want to hot add another DS14MK4 trays racked right above (IDs 3,4):
I've read the 2011 DS14MK4 guide and verified the loop speeds are all set consistently and IDs are all unique. (note: trays IDs are 1-4 from bottom to top)
Can I simply:
1 - remove the top two pairs of fiber and transceivers (these go to head 1 (partner)) 2 - daisy chain up from those vacated ports to new trays (3,4) 3 - plug the fiber and tranceivers back in on the top tray?
We would then grow (effectively double) this aggr1's capacity
What are the risks ? (2011 guide mentions panic's are possible with loop misconfig)
(we have 60 VMs running on head 2 on a separate loop and aggregate)
Any other tips appreciated
thanks
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