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Operating Systems AIX Tape backups: do you always verify them after doing them ? Post 302344332 by edfair on Saturday 15th of August 2009 11:33:19 PM
Old 08-16-2009
Think this is covered by one of Murphy's laws. IIRC it states that the one file that is sure to corrupt is the one file that corrupted on your last backup. Or something.

I recognize that verification is a user of significate resources but unverified backups can't be trusted. You are playing "bet your business".

My customers are on SCO, not AIX, and their backups are verified then stored in two different places each night.
 

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svn-fast-backup(1)					      General Commands Manual						svn-fast-backup(1)

NAME
svn-fast-backup - very fast backup for Subversion fsfs repositories. SYNOPSIS
svn-fast-backup [-q] [-k{N|all}] [-f] [-t] [-s] repos_path backup_dir DESCRIPTION
svn-fast-backup uses rsync snapshots for very fast backup of a Subversion fsfs repository at repos_path to backup_dir/repos-rev, the latest revision number in the repository. Multiple fsfs backups share data via hardlinks, so old backups are almost free, since a newer revision of a repository is almost a complete superset of an older revision. This is good for replacing incremental log-dump+restore-style backups because it is just as space-conserving and even faster; there is no inter-backup state (old backups are essentially caches); each backup directory is self-contained. It has the same command-line interface as svn-hot-backup(1) (if you use --force), but only works for fsfs repositories. svn-fast-backup keeps 64 backups by default and deletes backups older than these; this can be adjusted with the -k option. OPTIONS
-h, --help Shows some brief help text. -q, --quiet Quieter-than-usual operation. -k, --keep=N Keep a specified number of backups; the default is to keep 64. -k, --keep=all Do not delete any old backups at all. -f, --force Make a new backup even if one with the current revision exists. -t, --trace Show actions. -s, --simulate Don't perform actions. AUTHOR
Voluntary contributions made by many individuals. Copyright (C) 2006 CollabNet. 2006-11-09 svn-fast-backup(1)
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