Redundant (Fault Tolerant) Configuration
Configuration and Administration
251
Caution:
All settings for time, synchronization, authentication, and shared
secrets must be identical entries for both APMs.
33.
Select the “Admin” tab > “Alarm Trigger”
34.
Click on “Resources Take Over” and select “Enable” from the drop-
down field.
35.
Click on “Take Over” and select “Enable” from the drop-down field.
36.
Reboot the primary APM and then reboot the redundant APM. This is
necessary to activate the heartbeat configuration.
Caution:
Rebooting the primary and redundant APM will start up the
synchronization. The heartbeat, redundancy, data synchronization,
and failover support will not be activated until synchronization
completes.
37.
Check the status of the synchronization by logging onto the console of
either APM and entering the command:
#
/etc/init.d/drbd status
A display similar to the following shows the synchronization progress:
[root@APM_SW root]# /etc/init.d/drbd status
drbd driver loaded OK; device status:
version: 0.7.13 (api:77/proto:74)
SVN Revision: 1942 build by root@hp, 2005-11-16 10:15:30
0: cs:SyncSource st:Primary/Secondary ld:Consistent
ns:38354608 nr:92957432 dw:92965012 dr:38355456 al:17 bm:20242 lo:0
pe:2105 ua:1917 ap:0
[========>...........] sync'ed: 41.7% (52436/89876)M
finish: 0:59:04 speed: 15,124 (17,052) K/sec
1: cs:SyncSource st:Primary/Secondary ld:Consistent
ns:37298944 nr:51081528 dw:51088628 dr:37317968 al:13 bm:12093 lo:0
pe:2071 ua:2027 ap:0
[==============>.....] sync'ed: 73.0% (13469/49879)M
finish: 0:13:54 speed: 16,504 (16,636) K/sec
[root@APM_SW root]#
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