23.20 Other NSS Commands

NSS provides these additional commands for managing pools and volumes. To view a complete list, use the nss /help command.

Commands

Description

nss /DataShredding=volume:count

Enables the Data Shredding attribute for the specified volume. Specify the number of times you want to shred data.

Data shredding overwrites purged files with bit patterns up to seven times. Unless you must use this feature for security reasons, it should be disabled, as data shredding consumes a great deal of disk I/O bandwidth.

[Default=1; Range=0 to 7, where 0 indicates no shredding]

nss /NoDataShredding=volume 

Disables the Data Shredding attribute on the specified volume.

nss /FileCopyOnWrite 

Creates a copy of files in the volume when they are open for write.

nss /NoFileCopyOnWrite 

Does not create a copy of files on the volume when they are open for write.

nss /LVDeleteStatusBasic 

Displays information about deleted logical volumes.

nss /LVDeleteStatusSalvagable 

Displays information about salvagable logical volumes.

nss /Migration=volume/all 

Enables migration of files on the volumes.

nss /NoMigration=volume/all

Disables migration of files on the volumes.

nss /NoTransaction=volume/all 

Disables transactional writes in files on the volumes.

nss /Transaction=volume/all 

Enables transactional writes in files on the volumes.

nss /ZLSSIOStatus 

Displays current NSS IO status information.

nss /ZLSSPendingWriteIOs 

Number of write inputs dropped to the storage subsystem. (0 = all available)

Currently, there is no way to see the current value. Initially, you can assume that the value is the default setting. If you set ZLSSPendingWriteIOs to a valid value within the minimum and maximum range, you can assume that NSS correctly applied the new value if no error is reported when you issue the command. You must keep track manually of whatever valid value you set.

[Default=1000; Range=0 to 3000]

nss /ZLSSPoolScan 

Scans for and loads all ZLSS pools.

nss /ZLSSVolumeUpgrade 

Allows the 5.x/ZLSS VolumeUpgrade to the NetWare 6 format to occur during the installation process.