ADIC DATAMGR 3.5 - Manual (Page 37)

System Administrator’s Guide to Installing DataMgr
Prerequisites 1-19
Prerequisites
If File Replication or Multi-tier Policies are used, then the
equation is:
Example 1: if you have client files using a File Replication
policy with 1 primary copy and 1 secondary copy, the equation
would look like the following:
Example 2: if you have client files using a Multi-tier policy with
the primary copy and 2 tiers, the equation would look like the
following:
Note
A migrated file that is subsequently modified and re-migrated
creates a new record in the BFS Database. Also, when a
migrated file is removed from a client’s managed file system,
it’s record remains in the BFS Database until its retention time
expires and the Trashcan is dumped. At that point, the record
is available for re-use in the BFS Database.
Database size = ((64 + (factor * 16)) * Number of files being migrated
factor = Number of replicated copies or number of tiers.
Database size = (64 + (1 * 16)) * number of files )
Database size = 80 * number of files
Database size = (64 + (2 * 16)) * number of files
Database size = 96 * number of files