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Full Discussion: Backup software for AIX
Operating Systems AIX Backup software for AIX Post 302909795 by bakunin on Saturday 19th of July 2014 02:45:28 PM
Old 07-19-2014
Before you start searching for a product you might first find out your requirements. Take the following as a (not complete at all) list of questions you should try to find answers for:

- how many servers (LPARs) are to back up?

- how much data are to be backed up?
- daily
- weekly
- monthly
- quarterly
- yearly
Oftenly the surrounding environment (network lines, ...) is the limiting factor more than the capacity of the backup system itself. It might transpire that you need several network interfaces to provide enough bandwidth for you backup needs.

- how long do the data have to be stored and how much do you expect to hold in the backup system once it is "fully loaded"?
i.e. if you backup 1 GB every day and need to hold it for 1 month then you need to provide 31GB of space somewhere for this. How are you going to store all the data you back up? Tapes tend to work only for so long (as do CDs, disks, MO-drives, ...) and i.e. if you need to hold data for 10 years then putting them on a tape is probably a bad idea.

- do you have a certain timeframe for taking the backup and how long is it?
Some applications need to be online most of the day but have to be taken offline for the backup (databases, for instance). If you do not have enough time to take the backup you need to come up with something else: snapshots taken by SAN, incremental backups, "hot backups" (backup the DB inconsistently and use the archive logs to get it to a consisstent state) and some more procedures.

- how long is the restore allowed to take place?
Depending on the method you use for backup this may vary greatly. Take that into account when planning.

- What exactly do you want to do with the backups?
There are all sorts of backups: data, machine configurations, ... Do you want the backups to: let you restore the system once its hardware fails? Restore data only? If data, do you need to selectively restore certain files or just whole systems?

- Do you have ccertain legal requirements?
Certain companies (banks in the EU, for examples) have to store some data in a way which is not manipulatable once it is stored. There are specialized storage systems (EMCs Centera, for instance) to do this. You need to identify such a requirement (or other legal requirements for your backups) and take that into account.

OK, that was off the top of my head. Do not think the above list is in any way complete. It is just to show that there is more to the backup than meets the eye. Plan thoroughly and think about products only after you did that planning.

I hope this helps.

bakunin
This User Gave Thanks to bakunin For This Post:
 

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MV(1)									FSF								     MV(1)

NAME
mv - move (rename) files SYNOPSIS
mv [OPTION]... SOURCE DEST mv [OPTION]... SOURCE... DIRECTORY mv [OPTION]... --target-directory=DIRECTORY SOURCE... DESCRIPTION
Rename SOURCE to DEST, or move SOURCE(s) to DIRECTORY. Mandatory arguments to long options are mandatory for short options too. --backup[=CONTROL] make a backup of each existing destination file -b like --backup but does not accept an argument -f, --force do not prompt before overwriting equivalent to --reply=yes -i, --interactive prompt before overwrite equivalent to --reply=query --reply={yes,no,query} specify how to handle the prompt about an existing destination file --strip-trailing-slashes remove any trailing slashes from each SOURCE argument -S, --suffix=SUFFIX override the usual backup suffix --target-directory=DIRECTORY move all SOURCE arguments into DIRECTORY -u, --update move only when the SOURCE file is newer than the destination file or when the destination file is missing -v, --verbose explain what is being done --help display this help and exit --version output version information and exit The backup suffix is `~', unless set with --suffix or SIMPLE_BACKUP_SUFFIX. The version control method may be selected via the --backup option or through the VERSION_CONTROL environment variable. Here are the values: none, off never make backups (even if --backup is given) numbered, t make numbered backups existing, nil numbered if numbered backups exist, simple otherwise simple, never always make simple backups AUTHOR
Written by Mike Parker, David MacKenzie, and Jim Meyering. REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>. COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. SEE ALSO
The full documentation for mv is maintained as a Texinfo manual. If the info and mv programs are properly installed at your site, the com- mand info mv should give you access to the complete manual. mv (coreutils) 4.5.3 February 2003 MV(1)
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