NAME
backup_deletedump - Deletes one or more dump records from the Backup
Database
SYNOPSIS
backup deletedump [-dumpid <dump id>+] [-from <date time>+]
[-to <date time>+] [-localauth] [-cell <cell name>]
[-help]
backup dele [-d <dump id>+] [-f <date time>+]
[-t <date time>+] [-l] [-c <cell name>] [-h]
DESCRIPTION
The backup deletedump command deletes one or more dump records from the
Backup Database. Either use the -dumpid argument to specify the dump ID
number of one or more dumps, or use the -from and -to arguments to
delete the records for all regular dumps created during the time period
bracketed by the specified values.
Use this command to remove dump records that are incorrect (possibly
because a dump operation was interrupted or failed), or that correspond
to dumps that are expired or otherwise no longer needed.
CAUTIONS
The only way to remove the dump record for an appended dump is to
remove the record for its initial dump, and doing so removes the
records for all of the initial dump’s associated appended dumps.
The only way to remove the record for a Backup Database dump (created
with the backup savedb command) is to specify its dump ID number with
the -dumpid argument. Using the -from and -to arguments never removes
database dump records.
Removing records of a dump makes it impossible to restore data from the
corresponding tapes or from any dump that refers to the deleted dump as
its parent, directly or indirectly. That is, restore operations must
begin with the full dump and continue with each incremental dump in
order. If the records for a specific dump are removed, it is not
possible to restore data from later incremental dumps unless the
deleted records are restored by running the backup scantape command
with the -dbadd flag.
If a dump set contains any dumps that were created outside the time
range specified by the -from and -to arguments, the command does not
delete any of the records associated with the dump set, even if some of
them represent dumps created during the time range.
OPTIONS
-dumpid <dump id>+
Specifies the dump ID of each dump record to delete. The
corresponding dumps must be initial dumps; it is not possible to
delete appended dump records directly, but only by deleting the
record of their associated initial dump. Using this argument is the
only way to delete records of Backup Database dumps (created with
the backup savedb command).
Provide either this argument or the -to (and optionally -from)
argument.
-from <date time>+
Specifies the beginning of a range of dates; the record for any
dump created during the indicated period of time is deleted.
Omit this argument to indicate the default of midnight (00:00
hours) on 1 January 1970 (UNIX time zero), or provide a date value
in the format mm/dd/yyyy [hh:MM]. The month (mm), day (dd), and
year (yyyy) are required. The hour and minutes (hh:MM) are
optional, but if provided must be in 24-hour format (for example,
the value "14:36" represents 2:36 p.m.). If omitted, the time
defaults to midnight (00:00 hours).
The -to argument must be provided along with this one.
-to <date time>+
Specifies the end of a range of dates; the record of any dump
created during the range is deleted from the Backup Database.
Provide either the value "NOW" to indicate the current date and
time, or a date value in the same format as for the -from argument.
Valid values for the year (yyyy) 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 any later date to the maximum
value.
If the time portion (hh:MM) is omitted, it defaults to 59 seconds
after midnight (00:00:59 hours). Similarly, the backup command
interpreter automatically adds 59 seconds to any time value
provided. In both cases, adding 59 seconds compensates for how the
Backup Database and backup dumpinfo command represent dump creation
times in hours and minutes only. For example, the Database records
a creation timestamp of "20:55" for any dump operation that begins
between 20:55:00 and 20:55:59. Automatically adding 59 seconds to
a time thus includes the records for all dumps created during that
minute.
Provide either this argument, or the -dumpid argument. This
argument is required if the -from argument is provided.
Caution: Specifying the value "NOW" for this argument when the
-from argument is omitted deletes all dump records from the Backup
Database (except for Backup Database dump records created with the
backup savedb command).
-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.
OUTPUT
At the conclusion of processing, the output lists the dump IDs of all
dump records deleted in the following format:
The following dumps were deleted:
dump ID 1
dump ID 2
etc.
EXAMPLES
The following command deletes the dump record with dump ID 653777462,
and for any appended dumps associated with it:
% backup deletedump -dumpid 653777462
The following dumps were deleted:
653777462
The following command deletes the Backup Database record of all dumps
created between midnight on 1 January 1997 and 23:59:59 hours on 31
December 1997:
% backup deletedump -from 01/01/1997 -to 12/31/1997
The following dumps were deleted:
598324045
598346873
...
...
653777523
653779648
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_dumpinfo(8), backup_scantape(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.