CRS 4.0(4) Node 1 HA recovery

Unanswered Question
Oct 21st, 2008
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I have 2 servers in a High availability CRS express 4.0(4) cluster and need to reinstall the server OS on Node 1 I have found a couple of different precedures to accomplish this.

Procedure 1:

Server A is the publisher and a

subscriber (Server B) exists in the


• Option 1: Make Server B

the publisher, and

perform the recover

procedure on Server A,

then make Server A the


• Option 2: Perform the

restore procedure

• For Option 1: Some data lost

if Server A went down during


• For Option 2: Data since the

last backup lost

• Calls accepted1

Procedure 2:

Server A is a Cisco CRS Server,

there is a standby Cisco CRS

server in the cluster, and you are

running Cisco IPCC Express

Recover • No data loss, if there are no

active datastore components

on Server A

• Calls accepted1

I am having a hard time understanding the difference between the 2 options. Any suggestions.

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