NAME

       backup_setexp - Sets the expiration date for existing dump levels.

SYNOPSIS

       backup setexp -dump <dump level name>+
           [-expires <expiration date>+] [-localauth]
           [-cell <cell name>] [-help]

       backup se -d <dump level name>+
           [-e <expiration date>+]
           [-l] [-c <cell name>] [-h]

DESCRIPTION

       The backup setexp command sets or changes the expiration date associated with each specified dump level,
       which must already exist in the dump hierarchy.

       Use the -expires argument to associate an expiration date with each dump level. When the Backup System
       subsequently creates a dump at the dump level, it uses the specified value to derive the dump's
       expiration date, which it records on the label of the tape (or backup data file). The Backup System
       refuses to overwrite a tape until after the latest expiration date of any dump that the tape contains,
       unless the backup labeltape command is used to relabel the tape. If a dump level does not have an
       expiration date, the Backup System treats dumps created at the level as expired as soon as it creates
       them.

       (Note that the Backup System does not automatically remove a dump's record from the Backup Database when
       the dump reaches its expiration date, but only if the tape that contains the dump is recycled or
       relabeled. To remove expired and other obsolete dump records, use the backup deletedump command.)

       Define either an absolute or relative expiration date:

       •   An absolute expiration date defines the month/day/year (and, optionally, hour and minutes) at which a
           dump expires. If the expiration date predates the dump creation time, the Backup System immediately
           treats the dump as expired.

       •   A relative date defines the number of years, months, or days (or a combination of the three) after
           the dump's creation that it expires. When the Backup System creates a dump at the dump level, it
           calculates an actual expiration date by adding the relative date to the start time of the dump
           operation.

       If the command is used to change an existing expiration date associated with a dump level, the new date
       applies only to dumps created after the change. Existing dumps retain the expiration date assigned at the
       time they were created.

OPTIONS

       -dump <dump level name>+
           Specifies the full pathname of each dump level to assign the expiration date specified by the
           -expires argument.

       -expires <expiration date>+
           Defines the absolute or relative expiration date to associate with each dump level named by the -dump
           argument. Absolute expiration dates have the following format:

              [at] {NEVER | <mm>/<dd>/<yyyy> [<hh>:<MM>] }

           where the optional word at is followed either by the string "NEVER", which indicates that dumps
           created at the dump level never expire, or by a date value with a required portion (<mm> for month,
           <dd> for day, and <yyyy> for year) and an optional portion (<hh> for hours and <MM> for minutes).

           Omit the <hh>:<MM> portion to use the default of midnight (00:00 hours), or provide a value in
           24-hour format (for example, "20:30" is 8:30 p.m.).  Valid values for the year range from 1970 to
           2037; higher values are not valid because the latest possible date in the standard UNIX
           representation is in February 2038. The command interpreter automatically reduces later dates to the
           maximum value.

           Relative expiration dates have the following format:

              [in] [<years>y] [<months>m] [<days>d]

           where the optional word in is followed by at least one of a number of years (maximum 9999) followed
           by the letter "y", a number of months (maximum 12) followed by the letter "m", or a number of days
           (maximum 31) followed by the letter "d". If providing more than one of the three, list them in the
           indicated order. If the date that results from adding the relative expiration value to a dump's
           creation time is later than the latest possible date in the UNIX time representation, the Backup
           System automatically reduces it to that date.

       -localauth
           Constructs a server ticket using a key from the local /etc/openafs/server/KeyFile file. The backup
           command interpreter presents it to the Backup Server, Volume Server and VL Server during mutual
           authentication. Do not combine this flag with the -cell argument. For more details, see backup(8).

       -cell <cell name>
           Names the cell in which to run the command. Do not combine this argument with the -localauth flag.
           For more details, see backup(8).

       -help
           Prints the online help for this command. All other valid options are ignored.

EXAMPLES

       The following example associates an absolute expiration date of 10:00 p.m. on 31 December 1999 with the
       dump level "/1998/december":

          % backup setexp -dump /1998/december -expires at 12/31/1999 22:00

       The following example associates a relative expiration date of 7 days with the two dump levels
       "/monthly/week1" and "/monthly/week2":

          % backup setexp -dump /monthly/week1 /monthly/week -expires 7d

PRIVILEGE REQUIRED

       The issuer must be listed in the /etc/openafs/server/UserList file on every machine where the Backup
       Server is running, or must be logged onto a server machine as the local superuser "root" if the
       -localauth flag is included.

SEE ALSO

       backup(8), backup_adddump(8), backup_deldump(8), backup_listdumps(8)

COPYRIGHT

       IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.

       This documentation is covered by the IBM Public License Version 1.0.  It was converted from HTML to POD
       by software written by Chas Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth
       Cassell.