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Operating Systems AIX Help in understanding how backup and restore works in any organization? Post 302932605 by aaron8667 on Thursday 22nd of January 2015 05:57:27 PM
Old 01-22-2015
Thanks for the reply bakunin. your response shed light on some of the stuff which i always wanted to know. now i am seeing a bigger picture. Smilie
Thanks for your time.

regarding my questions;

I understand that,
usually DBA's help us in bringing the database/application to current state (what ever possible using archive logs & transactions logs etc)
They have backups running all the time (incremental as well as full backups - db level)


As an AIX Sys Admin,
I can capture the OS image (rootvg) before making any chnages like upgrade/migration etc. [am not talking about small canges, where we can take file backup using cp command]
and other than that, i can schedule a script which captures mksysb of AIX LPAR every week.

In my scenario, If we do not have any backup tool/products.

How can we backup user data (not OS) on regular basis using OS commands ? incremental or full backups ?


Here am planning to test below on some test server.

a) backup the OS using mksysb on weekly(sunday) basis to a file/directory (for OS) - am aware of this
b) backup all other vg's (user data) on regular basis ?
c) Database level , anyway DBA's can help with their db-level backups (fixed & transaction) - am aware of this

d) Finally if have all these backup strategies in place, how can i bring the system to current state in case of crash ?

OS - i can use mksysb (last sunday)
USER/APP files - ?

I would like to restore OS, user data and all db-level restores to make the system run as before.

Please let me know if this is right way to do it.

Thanks all
 

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BACKUP_LISTHOSTS(8)					       AFS Command Reference					       BACKUP_LISTHOSTS(8)

NAME
       backup_listhosts - Lists Tape Coordinators registered in the Backup Database

SYNOPSIS
       backup listhosts [-localauth] [-cell <cell name>] [-help]

       backup listh [-l] [-c <cell name>] [-h]

DESCRIPTION
       The backup listhosts command displays the Backup Database record of the port offset numbers defined for Tape Coordinator machines. A Tape
       Coordinator must have an entry in the list to be available for backup operations.

       The existence of an entry does not necessarily indicate that the Tape Coordinator process (butc) is currently running at that port offset.
       To check, issue the backup status command.

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
       After a "Tape hosts:" header, the output reports two things about each Tape Coordinator currently defined in the Backup Database:

       o   The hostname of the machine housing the Tape Coordinator. The format of this name depends on the hostname format used when the backup
	   addhost command was issued.

       o   The Tape Coordinator's port offset number.

       The Tape Coordinators appear in the order in which they were added to the Backup Database.

EXAMPLES
       The following example shows the result of the command in the ABC Corporation cell:

	  % backup listhosts
	  Tape hosts:
	      Host backup1.abc.com, port offset 0
	      Host backup1.abc.com, port offset 1
	      Host backup3.abc.com, port offset 4
	      Host backup2.abc.com, port offset 3

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_addhost(8), backup_delhost(8), backup_status(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_LISTHOSTS(8)
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