HP B6960-96035 User Manual Page 190

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For robustness considerations and recommendations for optimizing robustness by
relocating some IDB directories, see the online Help index: robustness of IDB“.
Underlying technology
The MMDB and CDB parts are implemented using an embedded database consisting
of tablespaces. This database is controlled by the RDS database server process. All
changes to the MMDB and CDB are updated using transaction logs. The transaction
logs are stored in the db40\logfiles\syslog directory. The CDB (objects and
positions) and the MMDB parts represent the core part of the IDB.
The DCBF, SMBF and SIBF parts of the IDB consist of binary files. Updates are direct
(no transactions).
Figure 56 IDB parts
Media Management Database (MMDB)
MMDB records
The Media Management Database stores information about the following:
Configured devices, libraries, library drives, and slots
Data Protector media
Configured media pools and media magazines
The Data Protector internal database190
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