Hot Add Of Iou - Fujitsu PRIMEQUEST 2000 Series Administration Manual

CHAPTER 4 PCI Card Hot Maintenance in Red Hat Enterprise Linux 6

4.4 Hot add of IOU

b. Use the iscsiadm command to log in to the path (iqn) through which the replacement iSCSI card is
routed, and reconnect the session.
Example which confirms the state of session before connecting:
# /sbin/iscsiadm -m session
tcp: [1] 192.168.1.64:3260,1 iqn.2000-
09.com.fujitsu:storage-system.eternus-
dx400:00001049.cm0ca0p0
Example which login path going through a NIC to be replaced:
# /sbin/iscsiadm -m node -T iqn.2000-09.com.fujitsu:storage-
system.eternus-dx400:00001049.cm1ca0p0 -p 192.168.2.66:3260
–login
c. Use the iscsiadm command to confirm that the target session has been activated.
Example which confirms the state of session after connecting
# /sbin/iscsiadm -m session
tcp: [1] 192.168.1.64:3260,1 iqn.2000-
09.com.fujitsu:storage-system.eternus-
dx400:00001049.cm0ca0p0
tcp: [3] 192.168.2.66:3260,3 iqn.2000-
09.com.fujitsu:storage-system.eternus-
dx400:00001049.cm1ca0p0
d. You can confirm the activation of sessions on multipath products using DM-MP or ETERNUS
multidriver.
*1: Write down the DM-MP display contents at the session activation.
Example of DM-MP display before connecting path
# /sbin/multipath -ll
mpath1 (36000b5d0006a0000006a104900000000) dm-0
FUJITSU,ETERNUS_DX400
[size=50G][features=0][hwhandler=0][rw]
¥_ round-robin 0 [prio=1][active]
¥_ 3:0:0:0 sdb 8:16
Example of DM-MP display after connecting path
# /sbin/multipath -ll
mpath1 (36000b5d0006a0000006a104900000000) dm-0
FUJITSU,ETERNUS_DX400
[size=50G][features=0][hwhandler=0][rw]
¥_ round-robin 0 [prio=2][enabled]
¥_ 3:0:0:0 sdb 8:16
¥_ 5:0:0:0 sdc 8:32
*2: See the ETERNUS Multipath Driver User's Guide (For Linux).
FC Card
1. Restart the application which is stop at preparing for IOU hot replacement
Common operation of all PCI Express cards after IOU hot replacement
Execute pciinfo command on MMB CLI.
Example: hot adding IOU#2 into partition#1.
Administrator > pciinfo partition 1 iou 2
Are you sure to continue updating IOU#2 in Partition#1?
[Y/N]: y
Update IOU#2 PCI information in Partition#1 has been
completed successfully.
Administrator >
4.4 Hot add of IOU
This section describes the hot add of the IOU.
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