Doctortt,
Everyone here is happy to share
Example of our DR setup for EV
Running EV 2007 SP2
Running DA 7 SP3
7 EV servers doing a mix of mailbox journaling and FSA
OS on servers Windows 2003 SP2
2 SQL servers clustered
OS Windows 2003 SP2 64Bit
SQL 2005 Enterprise with two instances
All index and databases are stored on an EMC SAN
all archived data stored on a Centers
DR
Index servers are backed up fully once a day
SQL databases are backed up to disk once a day, SQL transation logs are backed up to disk every 15 minutes
Both SQL log backups and database backups are backed up to tape daily and then deleted (to conserve space)
SQL Databases are backed up to tape every night
DA server export directory we run a full backup friday and differential weekdays (data does not change much daily)
Centera
Our Centera DR is we have a duplicate in a different building and we do realtime one way replication from our live Centera (Source) to our DR Centera (Destination)
I know most may think this is overkill but we have learned from bitter experience that because of the 30TB of data we have in our archive if we needed to rebuild it from scratch it would almost certainly kill us so we protect as much as we can
FYI we have so much storage because our present retention is keep forever