topic Re: Test Failover in Operating System - HP-UX

Test Failover

Gilbert Standen_1 — Fri, 16 Jan 2004 18:37:19 GMT

For testing purposes, can one configure a package to just move a service to the other node without unmounting the associated file systems? Basically just start the process on the other node, without any change in disk associations.

Re: Test Failover

Jeff Schussele — Fri, 16 Jan 2004 18:45:38 GMT

Hi Gilbert,

I don't see how you can do this within a single package. The pkg definitions *must* be identical on the nodes & whatever the pkg does must be done in totality any *any* node upon which it runs.

What I'd probably do is set up another package & set a dependency in that pkg to a monitor or some other event in the original pkg. So that when some event happens in pkg1 on node A pkg2 starts on node B.
Note that a pkg does *not* have to mount any VGs to run.

My $0.02,
Jeff

Re: Test Failover

Gilbert Standen_1 — Fri, 16 Jan 2004 19:03:48 GMT

Jeff, I will think over what you have said so that I understand. Your response very much appreciated.

Re: Test Failover

UNIXTEK — Thu, 22 Jan 2004 08:15:10 GMT

Why not just create a package XCLOCK?

Use xclock -n 'hostname' -display for example.

Re: Test Failover

Sunil Sharma_1 — Thu, 22 Jan 2004 08:20:09 GMT

Yes You can do it.

in pakage control script don't spcify lvols and vg's.
spcify only service.i did it in one of my test cluster for testing and it was working fine.

Sunil