Novell Doc: OES 1 - Compression Commands

23.7 Compression Commands

23.7.1 Server-Level Compression Commands

Use the following commands to modify server-level compression parameters from the command line in NetWare server console for NSS on NetWare, or in nsscon for NSS on Linux. For details about each parameter, see Section 17.2.1, Understanding Server-Level Compression Parameters.

Command	Values
nss /DaysUntouchedBeforeCompression= value	Range: 0 to 100000 (in days) Default: 14
nss /CompressionDailyCheckStartingHour= value	Range: 0 to 23 Hours are specified by a 24-hour clock: (0 = midnight; 23 = 11 p.m.). Default Value: 0
nss /CompressionDailyCheckStopHour= value	Supported Values: 0 to 23 Hours are specified by a 24-hour clock: (0 = midnight; 23 = 11 p.m.). Default Value: 6
nss /EnableFileCompression=<On \| Off>	Supported Values: On (default) or Off Default Value: On
nss /MinimumCompressionPercentageGain= value	Supported Values: 0 to 50 Default Value: 20
nss /MaximumConcurrentCompressions= value	Supported Values: 1 to 8 Default Value: 2
nss /ConvertCompressedToUncompressedOption= value	Supported Values: 0, 1, or 2 0 = Always leave the file compressed 1 = Leave the file compressed until second access if it is read only once during the time specified by the Days Untouched Before Compression parameter 2 = Always leave the file decompressed Default Value: 1
nss /DecompressPercentDiskSpaceFreeToAllowCommit= value	Supported Values: 0 to 75 Default Value: 10
nss /DecompressFreeSpaceWarningInterval= value	Supported Values: 0 seconds to 29 days 15 hours 50 minutes 3.8 seconds Setting the interval to 0 turns off the alert. Default Value: 31 minutes 18.5 seconds
nss /DeletedFilesCompressionOption= value	Supported Values: 0, 1, or 2 0 = Do not compress deleted files 1 = Compress deleted files the next day 2 = Compress deleted files immediately Default Value: 1

23.7.2 Volume-Level Compression Parameters

NSS offers the following commands for configuring and monitoring compression.

Command	Description
CompScreen	Displays the NSS volume compression statistics on the compression screen.
nss /Compression=volume	Enables the Compression attribute for the specified volume. After you enable the Compression attribute, the setting persists for the life of the volume. You cannot disable compression, but you can set parameters to effectively turn it off. For information, see Section 17.0, Managing Compression on NSS Volumes.
nss /Compression=all	Enables the Compression attribute for all volumes on the server.
StopNormalCompression	Stops all queued compression for files, based on the compression triggered by a file open or close.
nss /BGCompression	Allows compression to occur in the background at any time, instead of only within specified hours.
nss /NoBGCompression	Stops background compression and clears any queued background compression requests. Allow compression to occur only within the specified hours.