Archive conversion is the process of reading older archives
that are produced by GNU or BSD archivers, and writing new ccm_delta archives
in the 7.2 or later format.
The archive conversion process deletes old archive files and directories
as it converts archives. Learn about some common problems and questions
you might encounter while you run the archive conversion.
Here are the advantages of converted archives:
- The ccm fs_check command uses less memory to
find unused converted archives.
- Converted archives hold more information to aid recovery in the
event of database corruptions, disk crashes, and similar events.
Before you start your archive conversion
Here
is some information that you must know before you start your archive
conversion:
- Upgrade from Release 7.0, 7.1, or 7.1a to 7.2 or later.
- The archive conversion is not a part of the database upgrade process.
- You can pause the process during database backup or maintenance,
even when the database is protected.
- The process deletes old archives that were created in GNU or BSD.
- The archive conversion runs as a low-priority background process.
- You must run the CCM Server during the conversion.
- Direct archive conversion from Rational® Synergy
6.5 to Rational Synergy
7.2 is not supported.
- For the conversion, your administrator must allocate one extra
backend session per database.
- The CM administrator must run the ccm fs_check command
and resolve all reported errors before and after the archive conversion.
- You use the Web Administrator User interface to start, stop, and
report on the progress of archive conversion.
If you are ready to start the archive conversion, proceed
to Preparing for your archived data conversion.