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System Administrator’s Guide to Installing DataMgr
1-20 Prerequisites
Size Managed
File System
Database
The Managed File System Database is located under
/etc/dm/raima/dmfs.There is a Managed File System
Database for each client’s managed file system. The Database
contains all the information on each file in the managed file
system and stores information used in generating a list of files
to migrate.
Prior to selecting a file system for management, you must
determined the size of the Managed File System Database.
Use the formula below to determine the size:
The values for the Number of Directories and Files are
estimates of the maximum number of files and directories that
will reside on the client’s file system. This estimate assumes a
typical directory and file name length of 20 characters or less. If
the file name length is longer, add that length to the estimate.
For example, if the typical file name length is 40 the equation
would look like the following:
Note
A BFS Database that is 2GB in size can contain information for
20 million managed files.
Database size = ((Number of Directories x 250)+(Number of Files x 650))
Database size = ((Number of Directories x 290)+(Number of Files x 650))