Hi all,
I have 2 AlphaServers on the network that are supposed to be a redundant,
fail-over pair, ie. only one needs to be up and running at any time. They
have to share one IP address. The objective is to minimise any downtime as
short as possible. I am thinking of 2 options:
1. Have the standby machine configured with the main maching's IP but
powered down. When the main machine has to be shut down, the standby machine
can be powered up with the same IP address.
2. Both are powered up but the standby has its interface turned off
(using ifconfig?). When the time comes, its interface can be switched on
with the same IP as the main one.
Option 1 takes more downtime due to booting time. Option 2 requires
configuring IP on the fly without rebooting. I found in the archive a
message from Karen Byrd stating she had a similar problem changing an IP
address dynamically but an ifconfig -a still shows the old address. No
summary was found.
Am I missing any other options? Please help if you know how to solve this
problem.
I also heard that TruCluster can allow 2 machines to share one IP address
when they are both powered up and on the network, ie. they behave like one
machine. Could anyone shed some light on this, please?
Regards,
Hung Tran
RLM Systems
Received on Thu Jun 22 2000 - 08:01:12 NZST