We use EMC SAN disks with 100 miles between data centers.  We let the SAN
folks do live replication between the data centers on the SAN LUN.  It is
mounted as /openv on the master servers.

Two separate master servers, two separate locations, two separate SAN disk
arrays mirrored over a long fiber.

If either site goes down, the other site mounts a freshly broken SAN LUN to
an alternate file system mount point (something like /openv_other_site).

Copy the images from DR backups, load tapes from DR off site location, add
force_restore entries in bp.conf and you can start restoring.

Works and have tested DR restores.



Bobby Williams
2205 Peterson Drive
Chattanooga, Tennessee  37421
423-296-8200

-----Original Message-----
From: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of Justin 
Piszcz
Sent: Friday, March 17, 2006 6:24 AM
To: NBUList (E-mail)
Subject: [Veritas-bu] Question in regards to high availability of the
catalog.

Has anyone performed a high availability catalog across different
datacenters?

For instance:

Master [Datacenter1]  --------------> Netapp [Datacenter 1]
                                                  ^^^
                                                  |||||
                                                  vvv Master [Datacenter2
(standby)] -> Netapp [Datacenter 2]

Where the two netapps are synced via their own protocol for replication?
Has anyone done this or similar methods of catalog replication across
multiple sites?

Thanks,

Justin.

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