Hello List,
Thank you for your responses. Our current Setup is
Server1 is installed on DB Server DB1. ( This is current Production server)
Server2 is installed on Local DB. ( This is Provision Server)
In case of Server1 Fail over we are planning to point Server2 to DB1 and rename
Server2 to Server1. Some one can tell how to switch Server2 to another DB,
both the servers are already installed and we don't want to put DB1 in shared
mode between Server1 & Server2.
Thanks & Regards,
Viswa.
From: Action Request System discussion list(ARSList) [mailto:[EMAIL PROTECTED]
On Behalf Of Axton
Sent: Friday, October 13, 2006 12:17 AM
To: arslist@ARSLIST.ORG
Subject: Re: How to switch DB Server
**
Instead of using DNS to repoint traffic to the backup host, you can disable the
ip on the primary node, then reassign the ip to the backup node. Only delay
will the the arp requests in this scenario. Multiple ip's can be assigned to
both hosts to ensure the machines stay network accessible:
During normal operation (primary active):
hostA (primary):
trunk0: 10.1.1.100 <http://10.1.1.100> , 10.1.1.101 <http://10.1.1.101>
hostB (backup):
trunk0: 10.1.1.111 <http://10.1.1.111>
During failover operation (backup active):
hostA (primary):
trunk0: 10.1.1.101 <http://10.1.1.101>
hostB (backup):
trunk0: 10.1.1.100 <http://10.1.1.100> , 10.1.1.111 <http://10.1.1.111>
Your DNS would then have an A record for the following:
remedy.company.com <http://remedy.company.com> -> 10.1.1.100
<http://10.1.1.100>
remedy_primary.company.com -> 10.1.1.101 <http://10.1.1.101>
remedy_backup.company.com -> 10.1.1.111 <http://10.1.1.111>
Your users would simply log in to remedy.company.com
<http://remedy.company.com> , regardless of which node is active.
To access the servers using other tools (ssh, sftp, telnet, etc), you can use
the other hostnames (e.g., remedy_primary).
Axton Grams
On 10/12/06, McKenzie, James J C-E LCMC HQISEC/L3 <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]> > wrote:
**
Have you looked at Hot Backup licenses?
Also, you will have to force a DNS update that may take hours, depending on DNS
aging and how you setup your internal network.
James McKenzie
L-3 GSI
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