IBM N Series - Basic HA Pair Configuration Management

Chapter 7. Highly Available controller pairs 91
Copyright (C) 2000,2001,2002,2003 Broadcom Corporation.
Portions Copyright (c) 2002-2006 Network Appliance, Inc.
CPU type 0xF29: 2800MHz
Total memory: 0x80000000 bytes (2048MB)
CFE>
The same result can be accomplished by using the command cf disable followed by the
halt command.
From the CFE prompt or the boot LOADER prompt (depending on the model), the system can
be rebooted by using the boot_ontap command.
7.4.3 Basic HA pair configuration management
This section describes HA pair configuration management, including forced HA pair takeover
and giveback.
Run the cf takeover command on the node that remains operating and take over resources
of the other node. In the example, take the node itsosj_n2 offline by running the cf takeover
command on node itsosj_n1.
Starting takeover by using the CLI
Complete the following steps if you are working from a command line:
1. Check the HA pair status with the cf status command, as shown in Example 7-9.
Example 7-9 cf status: Check status
itsonas2> cf status
Cluster enabled, itsonas1 is up.
itsonas2>
2. Run the cf takeover command. Example 7-10 shows the console output during takeover.
Example 7-10 cf takeover command
itsonas2> cf takeover
cf: takeover initiated by operator
itsonas2> Sat Apr 9 02:00:22 GMT-7 [itsonas2: cf.misc.operatorTakeover:warning]: Cluster
monitor: takeover initiated by operator
Sat Apr 9 02:00:22 GMT-7 [itsonas2: cf.fsm.nfo.acceptTakeoverReq:warning]: Negotiated
failover: accepting takeover request by partner, reason: operator initiated cf takeover.
Asking partner to shutdown gracefully; will takeover in at most 180 seconds.
Sat Apr 9 02:00:33 GMT-7 [itsonas2: cf.fsm.firmwareStatus:info]: Cluster monitor: partner
rebooting
Sat Apr 9 02:00:33 GMT-7 [itsonas2: cf.fsm.takeoverByPartnerDisabled:notice]: Cluster
monitor: takeover of itsonas2 by itsonas1 disabled (interconnect error)
Sat Apr 9 02:00:33 GMT-7 [itsonas2: cf.fsm.nfo.partnerShutdown:warning]: Negotiated
failover: partner has shutdown
Sat Apr 9 02:00:33 GMT-7 [itsonas2: cf.fsm.takeover.nfo:info]: Cluster monitor: takeover
attempted after 'cf takeover'. command
Attention: Taking over resources affects the client environment. In particular, Windows
users and shares (CIFS services) are affected by this procedure.