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.