0

We are in the process of changing all the IPs of all the servers in our department. I've never done it before so I just need some info on what to expect. We are "hoping" for smooth process. Below are the systems that we got that needs to change IPs:

2 - HP Onboard Managament
1 - SAN switch management
6 - iLOs
SANs
4 - Windows Server
Clustered virtual server

I'm just wondering if a sequence is needed to change the IPs on all these. Like which one needs to be change first and then next.(I hope I made sense)

Thanks guys in advance.

1
  • 1
    Make sure you adjust you DNS records in the process, it's not less important than typing correct subnet mask.
    – Vick Vega
    Feb 25, 2011 at 21:25

1 Answer 1

1

You'll just have to think of it as a dependency graph, built up from a list of single dependence statements (edges). Here is a start (that may make a couple of assumptions from your list):

  • The Servers should come up after the SAN since they (probably) depend on the SAN for their storage.
  • If you don't have true console access, you probably want to do all the management and lights-out interfaces first since they won't affect the current production operation of the servers.
  • Cluster after all real hosts are changed and healthchecked since this depends on a happy, healthy batch of real hosts.

Of course also do some kind of dummy testing for routing purposes if this re-assignment is out of the old IP address' subnet.

2
  • Your assumption is correct. Here's what I got from you sugggestion: Management and iLos > SANs > Servers > Cluster. Is that correct? Thanks!
    – eggman20
    Feb 25, 2011 at 21:18
  • The order you have listed is how I would do it (given the level of detail that we are discussing at). Sorry for the late reply.
    – Justin
    Mar 4, 2011 at 0:44

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.