[cisco-voip] DRS (or DRF) on CUCM 5.X 6.X

[Patrick Diener]

---------- Forwarded message ----------
From: Patrick Diener <patrick.diener at gmail.com>
Date: Tue, 25 Sep 2007 19:40:09 +0200
Subject: Re: DRS (or DRF) on CUCM 5.X 6.X
To: Wes Sisk <wsisk at cisco.com>

ok, thanks for the info.
can you give any hints when this updates will be available? days, weeks, months?

cheers
patrick

On 9/25/07, Wes Sisk <wsisk at cisco.com> wrote:
>       There are several DRS fixes going into cm5.1(3) and 6.1(1).  In
> earlier version functionality is rather limited.
>
>  /Wes
>
>  Patrick Diener wrote:
> is it just me or is the Disaster Recovery System of the 5.X and 6.X versions
> a real disaster?!?
>
>  just skipped through the bugs and found some disturbing stuff like:
>
>   CSCsh32064
>  drs restore of CCMDB fails
>
>  Symptom:
>  CCMDB restore fails when run DRS restore.
>
>  Condition:
>  Error in DRF MA log:
>  command failed -- Enterprise Replication not active (62)
>  Database selected.
>  425: Database is currently opened by another user.
>  107: ISAM error: record is locked.
>
>  Workaround:
>  Possibly stop dbmon on all servers before attempting restore.
>
>  => this bug seems not to be fixed for the 5.1(2) Versions?!?
>
>  or
>
>  CSCsj90196
>  Change DRS process to not require sub rebuild/restore
>
>  Symptom:
>  CM5.x and 6.x disaster recovery currently requires subscriber reinstall.
> CM3.x and 4.x did not require subscriber reinstall after BARS restore.
>
>  Conditions:
>  Perform DRS restore on CM cluster.
>
>  Workaround:
>  After DRS restore on publisher reinstall each subscriber in the cluster.
>
>  => nice if you have a couple of subs in your cluster...
>
>  You can also chose to restore only a certain subscriber in the cluster!?
> What kind of data will be restored? In 4.X Versions you just could restore
> the pub and a reboot of the subs would get them back to the version of
> restored data on the pub...
>
>  Can someone shed some light on this topics? Any field experience, best
> practice, dos and don'ts for disaster recovery on 5.X and 6.X versions?
>
>  Regards
>  Patrick
>
>
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