VMware and HA solutions

Euler, Christian euler at aov.de
Mon Mar 10 11:18:53 MET 2008


AFAIK the VMWare HA tools provide high availability at operating system level. So if your hardware fails, you're fine because your guest system
will be transferred to another host. But if your application crashes (SAP in this case), you'll need a HA software that runs inside your guest system
and handles such situation by failing over to a standby node (which can be another VMWare guest system).

A good idea would be a combination of the two:

- VMWare HA for hardware failures (move the entire guest system to another host)
- a HA cluster software (linux-ha for example) to handle application failures (switch to a standby node)

Maybe there's a SAP Note which has more information on how to set up a clustered system..

Christian Euler
AOV IT.Services GmbH
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eMail euler at aov.de

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> -----Original Message-----
> From: linux.general-bounces at listserv.sap.com 
> [mailto:linux.general-bounces at listserv.sap.com] On Behalf Of 
> Michele Donna
> Sent: Monday, March 10, 2008 10:35 AM
> To: linux.general at listserv.sap.com
> Subject: RE: VMware and HA solutions
> Hi,
> What I'm trying to understand is if we can manage SAP
> instances simply using VMware HA tools or if we have to use
> another layer of ha software just for SAP.
> If VMware HA can provide a sort of Business continuity
> solution that's fine for us.. 
> thanks and regards,
> Michele

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