I am not sure this pdf is going to go through. If it doesn’t I can send direct.
· One issue you want to confirm is mult-pathing is working.
· Also, when you add your shelves you want to make sure you don’t have the disk or shelf firmware in place, or set to update.
· If you are adding shelves from another head (as in, not new), you will have to take ownership of the new disks.
· Make sure the disks are online before adding and add 1 shelf, confirm multi-path HA, then add the next shelf.
This doc is meant for the newer shelves, but the commands are pertinent.
Hope this is of some use..
From: toasters-bounces@teaparty.net [mailto:toasters-bounces@teaparty.net] On Behalf Of Fletcher Cocquyt
Sent: Tuesday, May 21, 2013 4:35 PM
To: Toasters@teaparty.net Lists
Subject: Hot adding DS14MK4 trays to existing loop
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):
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
