The more you do
something, the more simple it becomes, so from my previous two posts on shelf
hot-adds (7DOT
SAS SHELF and CDOT
SAS Shelf) I’ve listed out the essential hot-add commands for 3 different
scenarios!
These commands are run on both nodes in a HA pair at pretty much the same time, and
normally connected via the console/serial port of each node.
1) 7-Mode DS14
Type Shelves
From the Nodeshell >
shelfchk
fcstat
device_map
sysconfig
-ac
options
disk.auto_assign off
options
autosupport.doit “SHELF HOT-ADD START”
storage
show disk -p # Repeated many times...
options
autosupport.doit “SHELF HOT-ADD END”
options
disk.auto_assign on
sysconfig
-ac
2) 7-Mode SAS Type
Shelves
From the Nodeshell
>
shelfchk
sasadmin
expander_map
sysconfig
-ac
options
disk.auto_assign off
options
autosupport.doit “SHELF HOT-ADD START”
storage
show disk -p # Repeated many times...
options
autosupport.doit “SHELF HOT-ADD END”
options
disk.auto_assign on
sysconfig
-ac
storage
show acp
options
acp.enabled off
options
acp.enabled on
3) C-Mode SAS Type
Shelves (pre 8.3)
From the Clustershell ::>
system
health node-connectivity disk show -node NODENAME
system
health node-connectivity shelf show -node NODENAME
system
health alert show -node NODENAME
storage
disk option show -node NODENAME
storage
disk option modify -autoassign off -node NODENAME
system
node autosupport invoke -type all -message "SHELF HOT-ADD START"
-node NODENAME
system
node run local
From the Nodeshell >
shelfchk
sasadmin
expander_map
sysconfig
-ac
storage
show disk -p # Repeated many times…
sysconfig
-ac
storage
show acp
options
acp.enabled off
options
acp.enabled on
exit
From the Clustershell ::>
system
health node-connectivity disk show -node NODENAME
system
health node-connectivity shelf show -node NODENAME
storage
disk option modify -autoassign off -node NODENAME
system
node autosupport invoke -type all -message "SHELF HOT-ADD END" -node
NODENAME
Cabling
An easy way to
think about it…
1) Unplug the “long” cable from the IOM A circle port /
ESH A out port (which is on the last shelf in the stack/loop)
2a) (For SAS) plug the “long” cable into the IOM A circle
port of the last shelf in the stack being hot-added
2b) (For FC) connect ESH A in port on the new shelf, to
the vacated ESH A out port
3a) (For SAS) connect empty IOM A square to vacated IOM A
circle ports
3b) (For FC) plug the “long” cable into the ESH A out
port on the new last shelf in the loop
4) And repeat for IOM B / ESH B
Note: Recommend 1
shelf at a time if hot-adding DS14 shelves. Hot-adding multiple SAS shelves at
a time is fine.
Image: IOM6 Module
A -> OUT
Image: ESH4 Module
A -> OUT
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