If you are using this setup from HDS and have to change the Quorum hardware for some reason, this may help you.
There are plenty of reasons why you have to replace the Quorum hardware at some point. The process is described really well in the GAD AdminGuide. Basically, it is quite simple, but requires some preparation. This is done purely on the basis of raidcom. The new quorum is installed, zoned and already connected and discovert to the two GAD systems as an „external device“.
ATTENTION BEVOR OUR START REPLACE YOUR QUORUM
No guarantee that everything is flawless/error-free. The GAD Adminguide also shows very nicely how it works! This is „by admins, for admins“ which means that errors in the output and different messages have to be investigated by yourself. Open a support case with HDS and you will be helped! Check your pairs BEVOR your start, they must be nice, clean and in Status „AA“ at the end. Please think and don’t just type things in.
Both commands are twice. As Example Storage 1 is IH100 and Storage 2 ist -IH200.
Whatever we do, this example exchange the ldevs for QUID 1.
raidcom get quorum -IH100
raidcom get quorum -IH200
That lists all your quorums, if you have more than one. We will replace the LDEV in "1"
Check your Pathgroup. You should have 2...because your new quorum ist well connected.
raidcom get path -IH100
raidcom get path -IH200
Now check your pathgroups on bothe sides. In the example is only one site. We will take PathGroup 1 as the new Quorum. PathGroup 0 will Diconneted.
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raidcom get path -path_grp 0 -IH100
PHG GROUP STS CM IF MP# PORT WWN PR LUN PHS Serial# PRODUCT_ID LB PM DM QD TO(s) PBW(s)
0 1-1 NML D D 0 CL1-C 5012345654345520 1 0 NML 323232 VSP Gx00 N M D - - -
0 1-1 NML D D 0 CL4-C 5012345654345530 2 0 NML 323232 VSP Gx00 N M D - - -
raidcom get path -path_grp 1 -IH200
PHG GROUP STS CM IF MP# PORT WWN PR LUN PHS Serial# PRODUCT_ID LB PM DM QD TO(s) PBW(s)
1 1-2 NML D D 1 CL3-C 5078965578781120 1 0 NML 323232 VSP Gx00 N M D - - -
1 1-2 NML D D 1 CL4-C 5078965578781130 2 0 NML 323232 VSP Gx00 N M D - - -
---
Now disconnect PathGroup 0 !
raidcom disconnect external_grp -external_grp_id 0 -IH100
raidcom disconnect external_grp -external_grp_id 0 -IH200
Check. They should be in status "DCN" (Disconnect). Path Groups 1 should be Normal.
raidcom get path -path_grp 0 -IH100
PHG GROUP STS CM IF MP# PORT WWN PR LUN PHS Serial# PRODUCT_ID LB PM DM QD TO(s) PBW(s)
0 1-1 DSC D D 0 CL1-C 5012345654345520 1 0 NML 323232 VSP Gx00 N M D - - -
0 1-1 DSC D D 0 CL4-C 5012345654345530 2 0 NML 323232 VSP Gx00 N M D - - -
Check that your Quorum is Status "BLOCKED"...as in this Example Quorum 1
# raidcom get quorum -quorum_id 1 -fx -IH100
QRDID : 1
LDEV : 8888
QRP_Serial# : 323232
QRP_ID : R8
Timeout(s) : 40
STS : BLOCKED
# raidcom get quorum -quorum_id 1 -fx -IH200
QRDID : 1
LDEV : 8888
QRP_Serial# : 111111
QRP_ID : R8
Timeout(s) : 40
STS : BLOCKED
Now Replace...pretty simple, pretty fast
raidcom replace quorum -quorum-id 1 -ldev_id *your new ldevid from the new external PathGroup* -IH100
raidcom replace quorum -quorum-id 1 -ldev_id *your new ldevid from the new external PathGroup* -IH200
Quorum Status check
raidcom get quorum -quorum_id 1 -IH100
raidcom get quorum -quorum_id 1 -IH200
Status changes from Replacing to "normal" when both sides have been processed !!!
Thats it.
Check your pairs !