HP Visualize J7000 hp enterprise file system: release note for hp DCE/9000 enh - Page 35

Compatibility Information and Installation Requirements Cache Space Requirements CAUTION: Cache Space Requirements Administrators should be familiar with the implications the DFS cache configuration has regarding actual disk space requirements. Chapter 8 of the OSF DFS Administrators Guide provides some guidance and information regarding this subject. In general, and when using the default cache configuration, administrators should anticipate the DFS cache will require 10% more disk space than the specified cache size to accomodate both DFS-specific files and file system overhead. File system overhead includes the disk blocks necessary for inodes, directories, and other file system specific structures. DFS cache overhead consists mostly of the space necessary to hold the CacheItems and FilesetItems files. Failure to allocate adequate space to contain the cache will result in error messages being written to the system log, and may cause loss or corruption of data. 35