The idea of Neverfail is that is is a cluster for "non-cluster aware"
apps.

Once the cluster is setup, the "second" node is completely offline. 
In a "standard" cluster, ie, MSCS, VCS, Sun-Cluster, etc...you have two
or more nodes which have unique hostnames and a corresponding IP. The
Cluster resources move around as a virtual IP / hostname.

The Neverfail cluster has all nodes with the same hostname and the boxes
do not have their own unique IPs
Nodes syncs data over a private heartbeat LAN, and the non-active node
actually has it's service NIC turned off. The NIC gets enabled when the
standby host sees the Primary is non-respnsive.

The issue is that the backup server does not see the LAN the production
side of the cluster is connected to.
Each node has a backup LAN NIC/IP but you cannot create another
clustered resource to provide a failover IP on this backup VLAN.

I'm thinking I'm going to have to backup both nodes via their "physical"
backup LAN, ALL_LOCAL_DRIVES, which means backing up the cluster/shared
data twice.

:o\

-- 


> -----Original Message-----
> From: Michael Graff Andersen [mailto:mian71 AT gmail DOT com] 
> Sent: February 29, 2008 3:33 AM
> To: Paul Keating
> Cc: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: Re: [Veritas-bu] Anyone backing up Neverfail clusters?
> 
> 
> Hi Paul
> 
> Havn't heard of this cluster before, but would backup it like 
> other clusters
> 
> cluster drives/resources through the logical node(s) and local
> drives/resources through the physical nodes
> 
> Make the physical nodes able to the logical nodes backups by 
> using altnames
> 
> This has worked for me on windows, solaris, hp-ux and even tru-cluster
> 
> Hope it helps you
> 
> Regards
> Michael
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