By default, all NSS volumes on the server can optionally use the salvage feature of NSS to save deleted files for some predefined time or until space is needed. If you do not want files to be salvagable after deletion, you can enable the Immediate Purge of Deleted Files parameter. When this parameter is enabled at the server level, whenver a file is deleted, it is purged immediately. This server-level salvage setting overrides the settings for volume-level and file-level salvage parameters.