3.3 Setting up caches and buffers

Caches speed up access to frequently used data. With iXOS-JUKEMAN you can set up both a directory and a data cache. Permanent hard disk caches are not required to run iXOS-JUKEMAN, since directory and data caches are always maintained in RAM. For a large number of disks, however, it is recommended to set up at least a permanent directory cache.
In addition, iXOS-JUKEMAN supports incremental writing to disks with the incremental file system (IFS). To use this feature, iXOS-JUKEMAN requires a buffer on your hard disk to temporarily store the data to be written to the disks. Using the incremental file system, it is almost as easy writing to optical disks as it is writing to the hard disk.

• 3.3.1 The directory cache
• 3.3.2 How to set up the directory cache
• 3.3.3 The data cache
• 1.1.1 3.3.4 How to set up the data cache
• 3.3.5 The incremental file system (IFS)
• 1.1.1 3.3.6 How to set up the IFS buffer