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Cisco WAN Manager User’s Guide
Version 10.5, Part Number 78-12945-01 Rev. D0, August 2003
Chapter1 1 CWM to CWM Communica tions Recovering From Degrade Mode
The CWM Workstation Crashed or was Powered-off (Disa st er R ecovery)
Note A CWM W/S crash includes a power down, power failure, or disk crash.
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To recover from this degraded mode of operation f o llow t he se steps:
Step 1 Use the kill command (-9) on th e CWMGateway process on the Secon d ar y C W M s, af ter a s u cce s sful
re-start of the Pr imary CWM.
Step 2 The CWMGateway process will then b e r e- st ar ted by Watchdog w it hi n s eco n ds.
Step 3 Manually re-sync the us er data tables with the usertblDBsync command. Or, avoid doing any new user
data provisioning on the re-started Primary CWM until all of the Secondary CWMs are out of degrade
mode.
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An alternate approach to re-st arti ng t he P ri mar y C W M is as f o llow s:
Step 1 Start the core on the Primary
Step 2 Stop the core on all Secondaries
Step 3 Start the core on the Secondary CWMs in the network one by one.
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Eliminate the downed Primary from the CWM domain only if power-on or re-start of the
Primary does not work by following these steps:
Step 1 Manually remove the dow n ed Primary from all the ot he r CWM’s DomainGatewayList in the
CWMGateway.conf file
The following is an example of a CWMGateway.conf file with a DomainGatewayList consisting of
three CWM workstations named c w mw s 1, cwm w s2 , a nd cwmws3, with cwmws1 ass i gned as th e
Primary and cwmws2 and cwmws3 a s sig ne d as S e co nd arie s:
Debug level 2
DomainGatewayList cwmws1 cwmws2 cwmws3
ForcedSwitchOver
HeartBeatInterval 20
The above DomainGatewayList, for example, would n eed to b e edit ed to sho w that the do wne d Primar y
has been removed from all the other CWM’s DomainGatewayLists in the CWMGateway.conf file. In
this example, you would remove th e d owned P rim ary from both cwmws2 and cw m w s3
DomainGatewayLists to include only cwmws2 and cwmws3 Secondaries in the same domain:
Debug level 2
DomainGatewayList cwmws2 cwmws3
ForcedSwitchOver
HeartBeatInterval 20
Step 2 Manually remove all the oth er C W M s f r om th e d own ed P r im ary’s DomainGatewayList in the
CWMGateway.conf file