Disk space requirements

The following table shows how to allocate disk space on your server.

The Informix server limits the size and offset of each chunk file to 2 GB. Break up your raw device into many partitions of 2 GB.

Database Directories Space Required
ccm_home (installation) 750 MB
Installation machine requirements
informix_chunkfiles (data files)

Be sure to allow for growth when you allocate disk space for this directory. This directory is where all metadata is stored.

40 users (default) 220 MB
ccmdb

Starting size per database:
3 x the total size of all objects to be controlled.

Be sure to allocate generous disk space for the ccmdb directory. This directory is where all controlled file content is stored and where the database typically grows the most.

This space might grow much larger, depending on the number of versions maintained, particularly if the versions are binary files.

3 x ____ MB = _______ MB
Total Minimum Disk Space Needed
(ccm_home+informix_chunkfiles + ccmdb)
_______ MB
Note: On some UNIX systems, NFS caches are not updated even as a result of local activity. This can cause problems if you run an interface and engine on some UNIX systems with the file system part of the Rational Synergy database NFS-mounted from another system. To solve this problem, mount the ccmdb database file system with NFS caching disabled.

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