Novell Open Enterprise Server 2, System Administration Manual, Page: 29 / 55

Configuring Advanced Features for Traditional Volumes
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Configuring Advanced Features
for Traditional Volumes
This section discusses how to optimize file system performance for your NetWare
®
Traditional File
System storage and file management systems.
Š
Section 4.1, “Compressing and Decompressing Files,” on page 29
Š
Section 4.2, “Salvaging and Purging Files,” on page 32
4.1 Compressing and Decompressing Files
One way to conserve disk space is to compress files. If you set the File Compression attribute for a
Traditional volume, NetWare compresses files that have been inactive for a period of time.
Compression typically occurs at non-peak hours.
IMPORTANT: You cannot use compression for volumes on removable drives, such as CDs, DVDs,
or ISO files.
NetWare maintains the original version of a file during compression. When compression completes,
NetWare replaces the original with the compressed version of the file, if no errors occurred. If errors
do occur during compression, NetWare leaves the original version intact.
This section discusses the following topics:
Š
Section 4.1.1, “Planning for File Compression,” on page 29
Š
Section 4.1.2, “Setting Server-Level File Compression Attributes,” on page 30
Š
Section 4.1.3, “Enabling File Compression for a Traditional Volume,” on page 31
Š
Section 4.1.4, “Disabling File Compression for a Traditional Volume,” on page 31
Š
Section 4.1.5, “Suspending File Compression,” on page 32
4.1.1 Planning for File Compression
To effectively use file compression for your Traditional volumes, you must understand several key
concepts:
Š “Only Inactive Files Are Candidates for Compression” on page 30
Š
“Decompression Activity Depends on Available Space” on page 30
Š “Immediate Compression Impacts CPU Performance” on page 30
Š
“Files Remain Compressed during Backup and Restore” on page 30
Š “Compressed Volumes Remain Compressed” on page 30
Š
“How to Monitor Compression Activity” on page 30