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Operating Systems
Solaris
What is an Ideal Backup Strategy
Post 61831 by Cameron on Wednesday 9th of February 2005 06:55:05 AM
02-09-2005
Quote:
Originally Posted by una
What is an Ideal Backup Strategy
The term `Ideal` is ambiguous as different sites have different needs.
Quote:
Originally Posted by una
We have a solaris setup in our company and i have been assigned on a project of planning a backup strategy . ours is a midium level company.
Get out a pen and paper and start discussing with your company stakeholders what is core business critical systems and what isn't. For example; live/production servers and mail servers are generally considered critical systems, test/develpoment systems are not. Also know ahead of time what your budget is to get the task done. Also have stakeholders identify any SLA, OLA, etc that could be impacted by backup schedules.
Get each of your stakeholders to identify what they require backing up and with what regularity. Don't take this role on yourself, otherwise it could be a case of hit-and-miss. This detail received should include server names, IP addresses, and specific directories for example. Some systems require full-backups every time, other can withstand incremental backups during the week and a full-backup at weeks end (and a monthly backup on the last w/end of the month).
Draw yourself a micky-mouse diagram of what resources you have available to perform backups and spread the load across all resources. If you quickly find that you are running out of time and resources to perform your backups - then raise a red-flag and start making a purchase order
Another tip is to ease into your backup plan. No point flogging everything at the one time to have it all fall over. From the start, keep track of backup statistics - these metrics (amount of data backed-up, tapes used, time taken to perform backup, time period of backup) can be benificial to help reorganise backup scheduling and justify expansion requirements or upgrades.
I know it's a bit brief, but I hope that helps some.
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LEARN ABOUT DEBIAN
bdb.db0
BDB.DB0(5) AFS File Reference BDB.DB0(5) NAME
bdb.DB0, bdb.DBSYS1 - Contain the Backup Database and associated log DESCRIPTION
The bdb.DB0 file contains the Backup Database, which records configuration information used by the AFS Backup System along with cross- indexed records of the tapes created and volumes dumped using the Backup System commands. The bdb.DBSYS1 file is a log file in which the Backup Server (buserver process) logs each database operation before performing it. When an operation is interrupted, the Backup Server replays the log to complete the operation. Both files are in binary format and reside in the /var/lib/openafs/db directory on each database server machine that runs the Backup Server. When the Backup Server starts or restarts on a given machine, it establishes a connection with its peers and verifies that its copy of the bdb.DB0 file matches the copy on the other database server machines. If not, the Backup Servers use AFS's distributed database technology, Ubik, to distribute to all of the machines the copy of the database with the highest version number. Use the commands in the backup suite to administer the Backup Database. It is advisable to create a backup copy of the bdb.DB0 file on tape on a regular basis, using the UNIX tar command or another local disk backup utility. SEE ALSO
backup(8), backup_savedb(8), buserver(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 BDB.DB0(5)