What is a Conditions Snapshot

A tdf-files contains a list of database files that belong to a snapshot and the parameter of the db-files (eg.: dbid, db-name, size,...). A common prefix for the tdf and databases files is used, e.g.: Conditions.tdf and Conditions-NN.xdb for the database files.

database-files (*.xdb)

These are the Objectivity databases files. The db files have the postfix .xdb. In principle a an xdb file could contain more then one database files but we do not use this feature which means a snapshot db-file corresponds to a db-file in the Objectivity FDB.

snapshotDate

The file snapshotDate contains the date the snapshot was taken.
The format is: YYYYmmDDHH:MM:SS with Y=year, m=month, D=day, H=hour, M=minute and S=second.

snapshotReport (not required)

The file snapshotReport contains information about the snapshot taking process, e.g.: boot file of conditions FDB, snapshot tool and arguments, host the snapshot tool run on,...

snapshotCksum (not required)

The checksums for all file of a snapshot are stored in snapshotCksum. The checksum is computed using the cksum program. For each file the checksum, size and filename are written to the file.

README (not required)

Inforamtion about the snasphot.