Christopher Chan wrote:
Ralph Angenendt wrote:
Christopher Chan wrote:
Okay, Les helped me with that one. RAID1 on the network. So you would
have to use GFS or something like that with it and have the service
down on the secondary unless it was sendmail you were running.
No and yes. You can just use ext3 on both nodes as you normally only
have the one on the primary node mounted - the other one is not accessed
by anything. And yes, with heartbeat you "just" failover to the second
node, if the first one is dead. That will start the needed services on
the second node.
Are you positive that you can put ext3 on it and have it mounted on the
secondary while the primary is happily hammering away without any ill
effects? Have you done it?
Sorry, I did not read your mail through properly. Not mounted on the
secondary, okay. Anyway, quite a fair bit off complexity there in making
sure the network block device does not get mounted by both boxes at the
same time.
Is it really worth the complexity when you can have both servers online
running off their own disks for the mail queue without having to worry
about the other guy? If the primary is so badly whatever that a queue on
mirrored disks cannot be brought back online with a simple reboot, what
chances are there that the network block device won't be a victim of the
whatever and mess up the queue so that the secondary cannot use it?
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