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Chapter 8
Configuring High Availability
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m .
Switchover Guidelines
Be aware of the following guidelines when performing a switchover:
•
•
•
Verifying Switchover Possibilities
This section describes how to verify the status of the switch and the modules before a switchover.
•
•
OL-6973-03, Cisco MDS SAN-OS Release 2.x
When you manually initiate a switchover, system messages indicate the presence of two supervisor
modules.
A switchover can only be performed when two supervisor modules are functioning in the switch.
The modules in the chassis are functioning as designed.
Use the show system redundancy status command to ensure that the system is ready to accept a
switchover.
Use the show module command to verify the status (and presence) of a module at any time. A
sample output of the show module command follows:
switch# show module
Mod
Ports
Module-Type
---
-----
------------------------------- ------------------ ------------
2
8
IP Storage Services Module
5
0
Supervisor/Fabric-1
6
0
Supervisor/Fabric-1
8
0
Caching Services Module
9
32
1/2 Gbps FC Module
Mod
Sw
Hw
---
-----------
------
2
1.3(0.106a)
0.206
5
1.3(0.106a)
0.602
6
1.3(0.106a)) 0.602
8
1.3(0.106a)
0.702
9
1.3(0.106a)
0.3
Mod
MAC-Address(es)
---
--------------------------------------
2
00-05-30-00-9d-d2 to 00-05-30-00-9d-de
5
00-05-30-00-64-be to 00-05-30-00-64-c2
6
00-d0-97-38-b3-f9 to 00-d0-97-38-b3-fd
8
00-05-30-01-37-7a to 00-05-30-01-37-fe
9
00-05-30-00-2d-e2 to 00-05-30-00-2d-e6
* this terminal session
The
column in the output should display an
Status
status for supervisor modules. If the status is either
HA-standby
your configuration.
Model
DS-X9308-SMIP
DS-X9530-SF1-K9
DS-X9530-SF1-K9
DS-X9560-SMAP
DS-X9032
World-Wide-Name(s) (WWN)
--------------------------------------------------
20:41:00:05:30:00:00:00 to 20:48:00:05:30:00:00:00
--
--
--
22:01:00:05:30:00:00:00 to 22:20:00:05:30:00:00:00
Serial-Num
----------
JAB064605a2
JAB06350B1R
JAB06350B1R
JAB072705ja
JAB06280ae9
status for switching modules and an active or
OK
Cisco MDS 9000 Family Configuration Guide
Switchover Guidelines
Status
ok
active *
ha-standby
ok
ok
or active, you can continue with
OK
8-3
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