NSR client

The NSR client resource describes the files that are saved, the backup schedule, the directive used to omit files from the save, the length of time the files' index entries should be kept in the on-line file and media indexes, the users given access to back up, browse, and recover a client's files. To edit the NSR client resources for a Backup server use "nsradmin " or "nwadmin".

The NSR client resource has the following attributes:

• The name attribute specifies the hostname of a Backup client.

• The server attribute specifies the hostname of a client's Backup server.

• The archive services attribute specifies if a system can use archive services. To use this attribute archive support must be enabled on the server first.

• The schedule attribute specifies the name of the schedule controlling the backup levels for the save sets listed in the save set attribute.

• The browse policy attribute specifies the name of the policy controlling the length of time entries will remain in a client's on-line file index.

• The retention policy attribute specifies the name of the policy controlling the length of time entries will remain in the media index before they are marked as recyclable.

• The directive attribute specifies the directive used for backing up a client.

• The group attribute specifies the group a client is a member of. The group controls when scheduled backups are performed on the client.

• The save set attribute lists the path names to be saved for a client. When a client requires different file systems to be saved on different schedules, a client resource is required for each file system and schedule.

• The priority attribute specifies the backup priority given to a client where priority 1 is the highest, 1000 is the lowest. Automated savegroup's will attempt to back up clients with higher priorities before clients with lower priorities.

• The remote access attribute specifies a users access to back up, browse, and recover a client's files. Additional users, hosts, and netgroups may be granted permission to access a client's files by adding their names to this attribute. Netgroup names must be preceded by an ampersand (&). Input of the form user@host or host/user, grants access to a client's files to the specified users.

• The remote user attribute:

  • specifies the user login name a Backup server will use to authenticate itself with a client, who has accessed the network through rsh or nsrexecd.

  • allows the Backup server (when run with the savegrp -p command) to determine which files to save.

  • allows certain clients, (such as NetWare fileservers) to gain access to files being backed up. This procedure only works when the remote user attribute is used along with the password attribute.

• The password attribute is used by savegrp to initiate the commands savefs and save on a client machine. The commands savefs and save use the password to gain access to files being backed up. If a password is given, then the remote user attribute for the client resource must also be defined.

• The backup command performs a remote backup of client's data and save sets. This command can also perform pre and post backup processes. The prefix of the specified value must begin with "nsr" or "save".

• The executable path attribute specifies the path used by the Backup server for executing commands on the client.

• The server network interface attribute specifies the network interface the server uses for saves and recovers.

• The aliases attribute specifies the aliases for a client machine that queries can match.

• The owner notification attribute sends the contents of status messages to the owner/primary user of a system.

• The statistics attribute consists of: the size of the client's on-line file index, the number of kilobytes used and the number of entries in the index.

• The index save set attribute specifies save set, residing in a client's file index, to purge when an index operation is set to purging oldest cycle.

• The index message attribute is the status message resulting from the previous index operation.

• The index operation start attribute indicates the starting time of the current index operation. This attribute is a null string ("") when the operation is "Idle".

• The index progress attribute indicates the progress an index has made towards finishing the current task. This attribute is blank when the operation is "Idle", and is expressed as a percentage.

• The index operation attribute specifies the current index operation.

• The parallelism attribute indicates the maximum number of saves that should be run simultaneously on a single client.

• The archive users attribute specifies the users given access to the archive services on a client. This attribute can only be set if archive support has been enabled on the server.

• The application information attribute specifies a client's application information.

• The storage nodes attribute specifies the storage nodes available to a client for saving data. A client's saves are directed to the first storage node that has an enabled device and a functional media service.

• The clone storage nodes attribute specifies the storage nodes available to a storage node whose data is being cloned. Cloned data originating from a storage node will be directed to the first storage node that has an enabled device and a functional media service.

  The following is an example of a NSR client resource used to define a client, called saturn, backing up all of its files to the Backup server mars:

  type: NSR client; name: saturn; server: mars; archive services: Disabled; schedule: Default; browse policy: Month; retention policy: Quarter; directive: ; group: engineering; save set: h:\, c: \usr, c:\usrsrc; remote access: venus, sam@*, jupiter/john; remote user: operator; password: ; backup command: ; aliases: saturn.sun.com; archive users: ; storage nodes: nsrserverhost; clone storage nodes: ;