Dr Operation Of Iou Hot Replacement - Fujitsu PRIMEQUEST 2000 Series Administration Manual

CHAPTER 4 PCI Card Hot Maintenance in Red Hat Enterprise Linux 6
4.3 Hot replacement of IOU
*1: Write down the DM-MP display contents at the session disconnection.
Example of DM-MP display before disconnecting path
# /sbin/multipath -ll
mpath1 (36000b5d0006a0000006a104900000000) dm-0
FUJITSU,ETERNUS_DX400
[size=50G][features=0][hwhandler=0][rw]
¥_ round-robin 0 [prio=2][active]
¥_ 3:0:0:0 sdb 8:16
¥_ 4:0:0:0 sdc 8:32
Example of DM-MP display after disconnecting path
# /sbin/multipath -ll
mpath1 (36000b5d0006a0000006a104900000000) dm-0
FUJITSU,ETERNUS_DX400
[size=50G][features=0][hwhandler=0][rw]
¥_ round-robin 0 [prio=1][enabled]
¥_ 3:0:0:0 sdb 8:16
*2: See the ETERNUS Multipath Driver User's Guide (For Linux).
FC card
1. Stop the access to FC card on IOU by such a way as stopping application.

4.3.2 DR operation of IOU hot replacement

This section describes the DR operation for IOU hot replacement.
1. Execute "/opt/FJSVdr-util/sbin/dr rm IOU" command on the shell of OS.
The IOU to be removed will turn off.
Example: Turning off the IOU 3
# /opt/FJSVdr-util/sbin/dr rm IOU3
#
2. Login to MMB console as administrator
3. Execute "hotremove" command on MMB console.
Example: removing IOU 3 from partition 1
Administrator > hotremove partition 1 IOU 3
Are you sure to continue removing IOU#3 from Partition#1?
[Y/N]: Y
DR operation start (1/3)
Remove IOU#3 (2/3)
IOU#3 power-off (3/3)
Removing IOU#3 from partition#1 has been completed
successfully.
Administrator >
4. Perform "show dynamic_reconfiguration status" command and confirm below messages.
Example: When removing IOU3 from partition 1.
"Removing IOU#3 from Partition#1 completed." or "not executed."
5. Pulling the IOU out from the slot of cabinet
For replacing IOU itself, insert PCI Express card mounted on old IOU to new one.
For replacing, expanding or removing PCI Express card on the IOU, do it now.
This step is performed by the field engineer in charge of your system.
6. Take off all cables such as LAN cable and FC cable connected to the IOU.
This step is performed by the field engineer in charge of your system.
7. Inserting IOU to the slot of the cabinet.
This step is performed by the field engineer in charge of your system.
8. Mount cables other than LAN cables.
This step is performed by the field engineer in charge of your system.
Note
In GLS configuration with NIC switching way, mount also LAN cables.
[active][ready]
[active][ready]
[active][ready]
71
C122-E175-02EN