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CallManager Cluster - subscriber no DB access

I am trying to (first time) configure a call manager cluster and getting peculiar results. I've installed the subscriber CCM, made sure that replication works, and configured all other necessary items ("Servers", "Call Manager Groups", etc.).

When I unplug the primary call manager from the network to test fail-over, the phones seem to try and re-home, but I get the following error message on the subscriber CCM:

Error: UNKNOWN_ALARM:DBLException -

ErrorCode: 26

ExceptionString: Unknown SQL driver error. Please send message to Cicso developer for Telephony D

DeviceName: SEP00308546D1F0

App ID: Cisco CallManager

Cluster ID: FQPBX01-Cluster

Node ID: 10.30.1.51

Explanation:

Recommended Actcon: .

Of course when I just shutting down the CallManager service on the primary (instead of unplugging it from the net), the phones re-home. What do you think could be the problem? Is the secondary CCM trying to hit the primary DB? How can I troubleshoot this?

Thank you,

Vladimir

1 REPLY
New Member

Re: CallManager Cluster - subscriber no DB access

hello vladimir.

since the dbl has to be aware of a failover, and complains about "unknown sql DRIVER ERROR", this seems like a bug to me.

you can troubleshoot this over the callmanager serviceability-application, by enabling the "database layer monitor" traces, and look into

c:\Program Files\Cisco\Trace\DBL on the callmanager

since the dbl-service uses

DRIVER={SQL Server};SERVER=ccm;DATABASE=CCM0301

or similar, maybe it could help to upgrade the odbc-driver. but this has to be confirmed by the tac first !!!

good luck,

gerhard

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