HP B6960-96035 manual Catalog Database CDB, Mmdb size and growth, Mmdb location, CDB records

MMDB size and growth

The MMDB does not grow very big in size. The largest portion of the MMDB is typically occupied by information about the Data Protector media. Space consumption is in the range of 30 MB. Ffor more details , see “IDB size estimation ” on page 203.

MMDB location

The MMDB is located in the following directory:

•On Windows Server 2008:

Data_Protector_program_data\db40\datafiles\mmdb

•On other Windows systems: Data_Protector_home\db40\datafiles\mmdb

•On UNIX systems: /var/opt/omni/server/db40/datafiles/mmdb

Catalog Database (CDB)

CDB records

The Catalog Database stores information about the following:

•Backup, restore, copy, object consolidation, and media management sessions. This is a copy of the information sent to the Data Protector Monitor window.

•Backed up objects, their versions, and object copies.

•Positions of backed up objects on media. For each backed up object, Data Protector stores information about the media and data segments used for the backup. The same is done for object copies and object mirrors.

•Pathnames of backed up files (filenames) together with client system names. Filenames are stored only once per client system. The filenames created between backups are added to the CDB.

Filename size and growth

The biggest and fastest growing part of the CDB is the filenames part. It typically occupies 20% of the entire database. The growth of the filenames part is proportional to the growth and dynamics of the backup environment, and not to the number of backups.

A file or directory on the HP-UX or Solaris Cell Manager occupies approximately

50-70 bytes, and a file or directory on the Windows Cell Manager occupies 70-100 bytes in the IDB.

Filenames are stored in the fnames.dat file and in some other files, depending on the filename length. The maximum size of each of these files is 2 GB. You are notified

Concepts guide 191