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Top Forums UNIX for Dummies Questions & Answers why need to mirror disk if we had backups ? Post 302186426 by cero on Thursday 17th of April 2008 07:51:21 AM
Old 04-17-2008
Mirroring keeps your server alive when a disk fails.
Backups keep your company alive in case of a disaster.

With backups you can recover from logical errors, maybe a user deleting a business critical file - mirroring cant help you here.

Business critical servers need both: service continuity (mirroring) in case of a disk failure and business continuity (backup) in case you lose the entire server.
 

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STOREBACKUPCHECKBACKUP(1)				User Contributed Perl Documentation				 STOREBACKUPCHECKBACKUP(1)

NAME
storeBackupCheckBackup.pl - checks if a file in the backup is missing or corrupted SYNOPSIS
storeBackupCheckBackup.pl -c backupDir [-v level] [-p number] [-i] DESCRIPTION
This program calculates md5 sums from the files in the backup and compares them with md5 sums stored by storeBackup.pl. It so will recognize, if a file in the backup is missing or currupted. It only checks plain files, not special files or symbolic links. OPTIONS
--print print configuration parameters and stop --checkDir, -c backup or top of backups to check --backupRoot, -b root of storeBackup tree, normally not needed --verbose, -v generate statistics --parJobs, -p number of parallel jobs, default = chosen automatically -i, <--includeRenamedBackups> include renamed backups into the check renamed backups must follow the convention <backupDir>-<something> COPYRIGHT
Copyright (c) 2008-2012 by Heinz-Josef Claes (see README) Published under the GNU General Public License v3 or any later version perl v5.14.2 2012-03-03 STOREBACKUPCHECKBACKUP(1)
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