Jambo Riaan! *
Thank you for the clear, concise breakdown.
I already kinda figured 2 of those 3 options too,
I didn't know about the special compat21 libraries, though.
A/ Because we use Ingress databases, which need to be restarted each day,
I was planning to sync the hosts during that downtime.
A failover script is a natural extension to that mechanism.
B/ I read that RHEL4 will finction without a quorum partition.
What I didn't know was that RHEL 4 can 'emulate' 2.1
(being a 2.6 kernel with newer LVM and all).
RHEL4 would also, theoretically, allow LVM2 mirroring across those 2
hosts,
which would result in a shared, up-to-date filesystem.
C/ If neither of those options worked out well (or if the package simply
-requires- clustering),
the final trump card was a brand new system.
Unfortunately, a Compaq Cluster Package actually costs arount $20.000, if
you include the disks and licences.
A production-ready system (with multipath SCSI, dual RAID controllers, etc,
etc) will even run you $30.000
Kind regards,
(and a merry X-mas!)
Kit Gerrits
*) That's about all the Afrikaans I know, though
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