09-13-2007
Backup Data to tape
Hi everyone!!!
I have a question on incremental backup`s and full backup`s?
We currently use the Round-Robin schema to do full backup`s on a daily basis but want to change that as our data is increasing.
I would like to imply the Grandfather-father-Son policy taking a full backup on the 1st of every month-full backup every sunday and incremental every hour or 3 hours as data chages take place.My colleague would only like to imply a Grandfather-Son policy taking daily incremental backup`s on ufsdump level 1 and i would like to take incremental backups like this:
My suggestion on what we need to imply: GRANDFATHER-FATHER-SON
First Day of month
Level 0 (full)
Every Sunday of week
Level 0 (Full)
All other Mondays
Level 1 (incremental to previous Level 0)
Tuesday
Level 2 (daily incremental to previous Level 1)
Wednesday
Level 2 (daily incremental to previous Level 1)
Thursday
Level 2 (daily incremental to previous Level 1)
Friday
Level 2 (daily incremental to previous Level 1)
Saturday
Level 2 (daily incremental to previous Level 1)
Tape speed :
80MBps
I would like to know what you guy`s the we should implement?we are both relativly new to system admin.I would also like to know if we are to do a restore on My policy how I would go about it in any scenario?
Is father-son enough or do i have to Grandfather-father-son
Thanks
Donovan
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LEARN ABOUT HPUX
backup_listdumps
BACKUP_LISTDUMPS(8) AFS Command Reference BACKUP_LISTDUMPS(8)
NAME
backup_listdumps - Displays the dump hierarchy from the Backup Database
SYNOPSIS
backup listdumps [-localauth] [-cell <cell name>] [-help]
backup listd [-l] [-c <cell name>] [-h]
DESCRIPTION
The backup listdumps command displays the dump hierarchy from the Backup Database.
OPTIONS
-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
The output displays the complete dump hierarchy and indicates the relationship between full and incremental dump levels. Full dump levels
appear at the left margin. The hierarchy can include more than one full dump level; each one defines a subhierarchy of dump levels that can
be used for dumping different volume sets.
Incremental dump levels appear below and indented to the right of their parent dump levels, which can be either full or incremental. Since
multiple incremental dump levels can share the same parent, an incremental dump level is not always directly below its parent; the amount
of indentation indicates the parent/child relationship.
If a dump level has an associated expiration date, it appears along with the level name. Absolute expiration dates appear in the format
<dump_level> expires at <day month date time year>
and relative expiration dates in the format
<dump_level> expires in {<years>y | <months>m | <days>d}
to indicate the number of years, months, days, or combination of the three after creation a dump expires when created at this level.
EXAMPLES
The following example depicts six dump hierarchies. The expiration date for all incremental dump levels is 13 days so that the
corresponding tapes can be recycled two weeks after their creation. The expiration dates for all full dump levels is 27 days so that the
corresponding tapes can be recycled four weeks after their creation.
% backup listdumps
/week1 expires in 27d
/tuesday expires in 13d
/thursday expires in 13d
/sunday expires in 13d
/tuesday expires in 13d
/thursday expires in 13d
/week3 expires in 27d
/tuesday expires in 13d
/thursday expires in 13d
/sunday expires in 13d
/tuesday expires in 13d
/thursday expires in 13d
/sunday1 expires in 27d
/monday1 expires in 13d
/tuesday1 expires in 13d
/wednesday1 expires in 13d
/thursday1 expires in 13d
/friday1 expires in 13d
/sunday2 expires in 27d
/monday2 expires in 13d
/tuesday2 expires in 13d
/wednesday2 expires in 13d
/thursday2 expires in 13d
/friday2 expires in 13d
/sunday3 expires in 27d
/monday1 expires in 13d
/tuesday1 expires in 13d
/wednesday1 expires in 13d
/thursday1 expires in 13d
/friday1 expires in 13d
/sunday4 expires in 27d
/monday2 expires in 13d
/tuesday2 expires in 13d
/wednesday2 expires in 13d
/thursday2 expires in 13d
/friday2 expires in 13d
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)
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.
OpenAFS 2012-03-26 BACKUP_LISTDUMPS(8)