Hi all,
I need some advices about my configuration for
high-availability.
I would like to set up an active/passive
configuration for our POP/IMAP
server.
We have two servers with each one two HBA cards
(FC) attached to a SAN
IBM DS4000 where we store the mailbox.
My concern:
In case of a failure, i'm worry about corruption
data if the backup
server attempts to mount the mailstore (located
on the san) whereas
the first one is not really dead or if the first
one doesn't umount the
mailstore on the SAN (for example in a case of
network failure).
I read, of course, we can use STONITH to ensure
the first would be dead.
For my configuration, do i really need this ?
Or perhaps somebody knows that a SAN DS4000 can
give access to the
logical drive for the second server and block the
access to the first one ?
If someone have experience with heartbeat and IBM
SAN in an
active/passive configuration, i'm interested...
Thanks a lot
Best regards
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