The File-level Snapshots attribute is supported for NSS volumes on Linux and NetWare. For more information about how this works, see Section 23.3, Using the File-Level Snapshot Attribute to Enable the Backup of Open Files.
Enables or disables the ability to create a copy of files in the volume when they are open for write. The volume must be active and mounted before you issue the command. The All option does not alter settings for unmounted volumes.
After you enable the File Snapshot attribute on a volume, deactivate the volume, then activate it again. This ensures that there are no open files without a snapshot.
Examples
To enable the File Snapshot attribute for volume VOL1, enter the following at the server console:
nss /FileCopyOnWrite=VOL1
To enable file-level snapshots for all NSS volumes on the server, enter the following at the server console:
nss /FileCopyOnWrite=all
To disable file-level snapshots for volume VOL1, enter the following at the server console:
nss /NoFileCopyOnWrite=VOL1