> We have a relatively small backup system.  About 20 Windows servers 
> and one Solaris system being backed up for a total of about 3.5 TB 
> per week.  All backups are directly to tape.  We have 2 pools, 
> "Backup" and "Backup Special" plus corresponding clone pools for 
> each of them.  Backup is for the normal backup cycles and Backup 
> Special is for the Monthly archival backup and the occasional 
> special backup we may do.  I think it's best to not make it any more
> complex than is necessary.

I have about 140 clients. :-) And I have 4 pools - a PRD (Production pool 
- basically non-clone, straight to tape), a CLONE pool, a pool for AFTD 
devices (which is what gets cloned), and a separate pool for bootstraps 
and client file indexes.

I don't have separate pools for end of month runs - I run a script that 
queries the savesets for the specific date range for the EOMs, and changes 
the retention dates to be +7 years, and marks the tapes those savesets are 
on as READ-ONLY. We do daily differentials and Friday FULLs for almost 
everything. The CLONE jobs are all SQL server backups, using the SQL 
Module, and those are all FULL (we don't like incremental SQL backups).

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