3 backup_dumpinfo - Displays a dump record from the Backup Database
10 B<backup dumpinfo> S<<< [B<-ndumps> <I<number of dumps>>] >>>
11 S<<< [B<-id> <I<dump id>>] >>> [B<-verbose>] [B<-localauth>]
12 S<<< [B<-cell> <I<cell name>>] >>> [B<-help>]
14 B<backup dumpi> S<<< [B<-n> <I<no. of dumps>>] >>> [-i <I<dump id>>] [B<-v>]
15 [B<-l>] S<<< [B<-c> <I<cell name>>] >>> [B<-h>]
22 The B<backup dumpinfo> command formats and displays the Backup Database
23 record for the specified dumps. To specify how many of the most recent
24 dumps to display, starting with the newest one and going back in time, use
25 the B<-ndumps> argument. To display more detailed information about a
26 single dump, use the B<-id> argument. To display the records for the 10
27 most recent dumps, omit both the B<-ndumps> and B<-id> arguments.
29 The B<-verbose> flag produces very detailed information that is useful
30 mostly for debugging purposes. It can be combined only with the B<-id>
37 =item B<-ndumps> <I<number of dumps>>
39 Displays the Backup Database record for each of the specified number of
40 dumps that were most recently performed. If the database contains fewer
41 dumps than are requested, the output includes the records for all existing
42 dumps. Do not combine this argument with the B<-id> or B<-verbose>
43 options; omit all options to display the records for the last 10 dumps.
45 =item B<-id> <I<dump id>>
47 Specifies the dump ID number of a single dump for which to display the
48 Backup Database record. Precede the I<dump id> value with the B<-id>
49 switch; otherwise, the command interpreter interprets it as the value of
50 the B<-ndumps> argument. Combine this argument with the B<-verbose> flag,
51 but not with the B<-ndumps> argument; omit all options to display the
52 records for the last 10 dumps.
56 Provides more detailed information about the dump specified with the
57 B<-id> argument, which must be provided along with it. Do not combine this
58 flag with the B<-ndumps> argument.
62 Constructs a server ticket using a key from the local
63 F</usr/afs/etc/KeyFile> file. The B<backup> command interpreter presents
64 it to the Backup Server, Volume Server and VL Server during mutual
65 authentication. Do not combine this flag with the B<-cell> argument. For
66 more details, see L<backup(8)>.
68 =item B<-cell> <I<cell name>>
70 Names the cell in which to run the command. Do not combine this argument
71 with the B<-localauth> flag. For more details, see L<backup(8)>.
75 Prints the online help for this command. All other valid options are
82 If the B<-ndumps> argument is provided, the output presents the following
83 information in table form, with a separate line for each dump:
93 The dump ID number of the dump's parent dump. A value of C<0> (zero)
94 identifies a full dump.
98 The depth in the dump hierarchy of the dump level used to create the
99 dump. A value of C<0> (zero) identifies a full dump, in which case the
100 value in the C<parentid> field is also C<0>. A value of C<1> or greater
101 indicates an incremental dump made at the corresponding level in the dump
106 The date and time at which the Backup System started the dump operation
107 that created the dump.
111 The number of tapes that contain the data in the dump. A value of C<0>
112 (zero) indicates that the dump operation was terminated or failed. Use the
113 B<backup deletedump> command to remove such entries.
117 The number of volumes from which the dump includes data. If a volume spans
118 tapes, it is counted twice. A value of C<0> (zero) indicates that the dump
119 operation was terminated or failed; the value in the C<nt> field is also
124 The dump name in the form
126 <volume_set_name>.<dump_level_name> (<initial_dump_ID>)
128 where <volume_set_name> is the name of the volume set, and
129 <dump_level_name> is the last element in the dump level pathname at which
130 the volume set was dumped.
132 The <initial_dump_ID>, if displayed, is the dump ID of the initial dump in
133 the dump set to which this dump belongs. If there is no value in
134 parentheses, the dump is the initial dump in a dump set that has no
139 If the B<-id> argument is provided alone, the first line of output begins
140 with the string C<Dump> and reports information for the entire dump in the
151 The depth in the dump hierarchy of the dump level used to create the
152 dump. A value of C<0> (zero) identifies a full dump. A value of C<1> (one)
153 or greater indicates an incremental dump made at the specified level in
158 The number of volumes for which the dump includes data.
162 The date and time at which the dump operation began.
166 If an XBSA server was the backup medium for the dump (rather than a tape
167 device or backup data file), the following line appears next:
169 Backup Service: <XBSA_program>: Server: <hostname>
171 where <XBSA_program> is the name of the XBSA-compliant program and
172 <hostname> is the name of the machine on which the program runs.
174 Next the output includes an entry for each tape that houses volume data
175 from the dump. Following the string C<Tape>, the first two lines of each
176 entry report information about that tape in the following fields:
182 The tape's permanent name if it has one, or its AFS tape name otherwise,
183 and its tape ID number in parentheses.
187 The number of volumes for which this tape includes dump data.
191 The date and time at which the Tape Coordinator began writing data to this
196 Following another blank line, the tape-specific information concludes with
197 a table that includes a line for each volume dump on the tape. The
198 information appears in columns with the following headings:
204 The relative position of each volume in this tape or file. On a tape, the
205 counter begins at position 2 (the tape label occupies position 1), and
206 increments by one for each volume. For volumes in a backup data file, the
207 position numbers start with 1 and do not usually increment only by one,
208 because each is the ordinal of the 16 KB offset in the file at which the
209 volume's data begins. The difference between the position numbers
210 therefore indicates how many 16 KB blocks each volume's data occupies. For
211 example, if the second volume is at position 5 and the third volume in the
212 list is at position 9, that means that the dump of the second volume
213 occupies 64 KB (four 16-KB blocks) of space in the file.
217 For a backup or read-only volume, the time at which it was cloned from its
218 read/write source. For a Read/Write volume, it is the same as the dump
219 creation date reported on the first line of the output.
223 The number of bytes of data in the dump of the volume.
227 The volume name, complete with C<.backup> or C<.readonly> extension if
232 If both the B<-id> and B<-verbose> options are provided, the output is
233 divided into several sections:
239 The first section, headed by the underlined string C<Dump>, includes
240 information about the entire dump. The fields labeled C<id>, C<level>,
241 C<created>, and C<nVolumes> report the same values (though in a different
242 order) as appear on the first line of output when the B<-id> argument is
243 provided by itself. Other fields of potential interest to the backup
250 The dump's I<group ID number>, which is recorded in the dump's Backup
251 Database record if the C<GROUPID> instruction appears in the Tape
252 Coordinator's F</usr/afs/backup/CFG_I<tcid>> file when the dump is
257 The number of tapes that contain the dump set to which this dump belongs.
261 The ordinal of the tape on which this dump begins in the set of tapes that
262 contain the dump set.
268 For each tape that contains data from this dump, there follows a section
269 headed by the underlined string C<Tape>. The fields labeled C<name>,
270 C<written>, and C<nVolumes> report the same values (though in a different
271 order) as appear on the second and third lines of output when the B<-id>
272 argument is provided by itself. Other fields of potential interest to the
279 The date and time when this tape can be recycled, because all dumps it
280 contains have expired.
282 =item nMBytes Data and nBytes Data
284 Summed together, these fields represent the total amount of dumped data
285 actually from volumes (as opposed to labels, filemarks, and other
288 =item KBytes Tape Used
290 The number of kilobytes of tape (or disk space, for a backup data file)
291 used to store the dump data. It is generally larger than the sum of the
292 values in the C<nMBytes Data> and C<nBytes Data> fields, because it
293 includes the space required for the label, file marks and other markers,
294 and because the Backup System writes data at 16 KB offsets, even if the
295 data in a given block doesn't fill the entire 16 KB.
301 For each volume on a given tape, there follows a section headed by the
302 underlined string C<Volume>. The fields labeled C<name>, C<position>,
303 C<clone>, and C<nBytes> report the same values (though in a different
304 order) as appear in the table that lists the volumes in each tape when the
305 B<-id> argument is provided by itself. Other fields of potential interest
306 to the backup operator are:
316 The name of the tape containing this volume data.
324 The following example displays information about the last five dumps:
326 % backup dumpinfo -ndumps 5
327 dumpid parentid lv created nt nvols dump name
328 924424000 0 0 04/18/1999 04:26 1 22 usr.sun (924424000)
329 924685000 924424000 1 04/21/1999 04:56 1 62 usr.wed (924424000)
330 924773000 924424000 1 04/22/1999 05:23 1 46 usr.thu (924424000)
331 924860000 924424000 1 04/23/1999 05:33 1 58 usr.fri (924424000)
332 925033000 0 0 04/25/1999 05:36 2 73 sys.week
334 The following example displays a more detailed record for a single dump.
336 % backup dumpinfo -id 922097346
337 Dump: id 922097346, level 0, volumes 1, created Mon Mar 22 05:09:06 1999
338 Tape: name monday.user.backup (922097346)
339 nVolumes 1, created 03/22/1999 05:09
340 Pos Clone time Nbytes Volume
341 1 03/22/1999 04:43 27787914 user.pat.backup
343 The following example displays even more detailed information about the
344 dump displayed in the previous example (dump ID 922097346). This example
345 includes only one exemplar of each type of section (C<Dump>, C<Tape>, and
348 % backup dumpinfo -id 922097346 -verbose
353 Appended id = 922099568
360 created = Mon Mar 22 05:09:06 1999
364 format= user.monday1.%d
372 tape name = monday.user.backup
373 AFS tape name = user.monday1.1
375 written = Mon Mar 22 05:09:06 1999
377 kBytes Tape Used = 121
388 name = user.pat.backup
395 clone = Mon Mar 22 04:43:06 1999
400 tape = user.monday1.1
402 =head1 PRIVILEGE REQUIRED
404 The issuer must be listed in the F</usr/afs/etc/UserList> file on every
405 machine where the Backup Server is running, or must be logged onto a
406 server machine as the local superuser C<root> if the B<-localauth> flag is
413 L<backup_deletedump(8)>
417 IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.
419 This documentation is covered by the IBM Public License Version 1.0. It was
420 converted from HTML to POD by software written by Chas Williams and Russ
421 Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.