R: [rhn-users] RHEL3 => RHEL 5 - failover/clustering?

[Edoardo Causarano]

Those are sweet machines! Anyway, RH subscription service allows you to install whatever version you wish until the contract expires. That's rather sensible and a good incetive to abandon legacy systems, lessening support costs from RH's perspective. The customer, on the other hand, can get the latest updates on kernel and system stuff and that is really good news, especially if migrating from AS3.

I'm pretty sure a RH5 migrarion would get you the whole cluster, gfs and XEN package, but you should wait for someone else to confirm that. Of course you must plan adapting your production software to the new package versions milestoned in the AS release. 

Ciao,
e


-----Original Message-----
From: rhn-users-bounces at redhat.com <rhn-users-bounces at redhat.com>
To: Discussions about Red Hat Network (rhn.redhat.com) <rhn-users at redhat.com>
Sent: Tue Oct 09 00:36:47 2007
Subject: [rhn-users] RHEL3 => RHEL 5 - failover/clustering?

I just got 2 new identical systems to run our web servers.
They will replace our existing 2 systems running RHEL 3.

The 2 new systems are identical:
Processor: Quad 3.4GHZ/800MHZ/16MB Cache Dual-Core Intel Xeon 7140M Processor
Memory: 32GB DDR2 400MHZ Raid Enable, Dual Ranked DIMMs,
Hard Drive: 300GB, Gbps, SAS, 3.5 Inch 15K RPM hard Drive, Hot Plug


1) Is it recommended to install RHEL 5 on the new servers or stick with RHEL 3?

2) I have support for RHEL3, do I need to pay extra for RHEL 5 support?
   (the 2 old systems will be going offline as soon as the new one are ready)

3) Can I just download RHEL 5 and install it on my new systems.

4) Does RH have something similar to Heartbeat and drbd?

I was wondering if I can get ideas or can point me to where I can read 
on how to make sure that the systems are mirrored and are maintained
in synch and ready for fallback.

Any ideas are welcome.

Thanks,

Néstor :-)

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