3 backup_setexp - Sets the expiration date for existing dump levels.
10 B<backup setexp> S<<< B<-dump> <I<dump level name>>+ >>>
11 S<<< [B<-expires> <I<expiration date>>+] >>> [B<-localauth>]
12 S<<< [B<-cell> <I<cell name>>] >>> [B<-help>]
14 B<backup se> S<<< B<-d> <I<dump level name>>+ >>>
15 S<<< [B<-e> <I<expiration date>>+] >>>
16 [B<-l>] S<<< [B<-c> <I<cell name>>] >>> [B<-h>]
23 The B<backup setexp> command sets or changes the expiration date
24 associated with each specified dump level, which must already exist in the
27 Use the B<-expires> argument to associate an expiration date with each
28 dump level. When the Backup System subsequently creates a dump at the dump
29 level, it uses the specified value to derive the dump's expiration date,
30 which it records on the label of the tape (or backup data file). The
31 Backup System refuses to overwrite a tape until after the latest
32 expiration date of any dump that the tape contains, unless the B<backup
33 labeltape> command is used to relabel the tape. If a dump level does not
34 have an expiration date, the Backup System treats dumps created at the
35 level as expired as soon as it creates them.
37 (Note that the Backup System does not automatically remove a dump's record
38 from the Backup Database when the dump reaches its expiration date, but
39 only if the tape that contains the dump is recycled or relabeled. To
40 remove expired and other obsolete dump records, use the B<backup
43 Define either an absolute or relative expiration date:
49 An absolute expiration date defines the month/day/year (and, optionally,
50 hour and minutes) at which a dump expires. If the expiration date predates
51 the dump creation time, the Backup System immediately treats the dump as
56 A relative date defines the number of years, months, or days (or a
57 combination of the three) after the dump's creation that it expires. When
58 the Backup System creates a dump at the dump level, it calculates an
59 actual expiration date by adding the relative date to the start time of
64 If the command is used to change an existing expiration date associated
65 with a dump level, the new date applies only to dumps created after the
66 change. Existing dumps retain the expiration date assigned at the time
73 =item B<-dump> <I<dump level name>>+
75 Specifies the full pathname of each dump level to assign the expiration
76 date specified by the B<-expires> argument.
78 =item B<-expires> <I<expiration date>>+
80 Defines the absolute or relative expiration date to associate with each
81 dump level named by the B<-dump> argument. Absolute expiration dates have
84 [at] {NEVER | <mm>/<dd>/<yyyy> [<hh>:<MM>] }
86 where the optional word at is followed either by the string C<NEVER>,
87 which indicates that dumps created at the dump level never expire, or by a
88 date value with a required portion (<mm> for month, <dd> for day, and
89 <yyyy> for year) and an optional portion (<hh> for hours and <MM> for
92 Omit the <hh>:<MM> portion to use the default of midnight (00:00 hours),
93 or provide a value in 24-hour format (for example, C<20:30> is 8:30 p.m.).
94 Valid values for the year range from C<1970> to C<2037>; higher values are
95 not valid because the latest possible date in the standard UNIX
96 representation is in February 2038. The command interpreter automatically
97 reduces later dates to the maximum value.
99 Relative expiration dates have the following format:
101 [in] [<years>y] [<months>m] [<days>d]
103 where the optional word in is followed by at least one of a number of
104 years (maximum C<9999>) followed by the letter C<y>, a number of months
105 (maximum C<12>) followed by the letter C<m>, or a number of days (maximum
106 C<31>) followed by the letter C<d>. If providing more than one of the
107 three, list them in the indicated order. If the date that results from
108 adding the relative expiration value to a dump's creation time is later
109 than the latest possible date in the UNIX time representation, the Backup
110 System automatically reduces it to that date.
114 Constructs a server ticket using a key from the local
115 F</usr/afs/etc/KeyFile> file. The B<backup> command interpreter presents
116 it to the Backup Server, Volume Server and VL Server during mutual
117 authentication. Do not combine this flag with the B<-cell> argument. For
118 more details, see L<backup(8)>.
120 =item B<-cell> <I<cell name>>
122 Names the cell in which to run the command. Do not combine this argument
123 with the B<-localauth> flag. For more details, see L<backup(8)>.
127 Prints the online help for this command. All other valid options are
134 The following example associates an absolute expiration date of 10:00
135 p.m. on 31 December 1999 with the dump level C</1998/december>:
137 % backup setexp -dump /1998/december -expires at 12/31/1999 22:00
139 The following example associates a relative expiration date of 7 days with
140 the two dump levels C</monthly/week1> and C</monthly/week2>:
142 % backup setexp -dump /monthly/week1 /monthly/week -expires 7d
144 =head1 PRIVILEGE REQUIRED
146 The issuer must be listed in the F</usr/afs/etc/UserList> file on every
147 machine where the Backup Server is running, or must be logged onto a
148 server machine as the local superuser C<root> if the B<-localauth> flag is
154 L<backup_adddump(8)>,
155 L<backup_deldump(8)>,
156 L<backup_listdumps(8)>
160 IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.
162 This documentation is covered by the IBM Public License Version 1.0. It was
163 converted from HTML to POD by software written by Chas Williams and Russ
164 Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.