JJZolx wrote:
> I've tried to convince some technically semi-literate friends that if
> they buy a NAS and use RAID there is a very good chance that when (not
> if) they lose a hard drive, they or the hardware or the software are
> going to f**k thingS up before or during the rebuilding process to make
> that array unrecoverable. In most cases it will be user error. I also
> try to convince them of the need for backups, but some see that RAID
> array as the solution to their problems. Two of them lost arrays
> completely, and one had no backup and lost everything.
>
It's nice to hear that I'm not alone with this kind of experience, I
started think that my experience with people recovering a RAID system
and ending up in a scenario where the recovery takes too long or fails
was a rare exception.
As you say, it's probably often user errors of people doing something
wrong during the recovery process or a system not configured properly,
but still.
JJZolx wrote:
>
> Constantly mirroring is both senseless and dangerous. If you consider
> this to be a 'backup', then it completely defeats the purpose of having
> a backup. If you accidentally delete something, or the files are
> inadvertently changed or corrupted or, then the deletions, unintended
> changes and corruptions are then mirrored to the second system. If
> you're using mirroring for backup, you should only do backups manually
> and you should do something to assure yourself that the original library
> is healthy before performing a backup. For a music library, you can get
> a file count to guard against deletions, and if the files are encoded in
> FLAC, you can run a test across the library to be sure files are not
> corrupted. You can also often run mirroring software with a test switch
> to first see how many files will be copied.
>
Totally agree, a good backup should either be based on a consistenty
check before the backup or doing backups where historical versions are
kept. Without this it's very easy to accidentally end up with a a non
working backup that's useless when something happens with your primary
storage.
Erland Isaksson ('My homepage' (http://erland.isaksson.info))
(Developer of 'many plugins/applets (both free and commercial)'
(http://wiki.slimdevices.com/index.php/User:Erland).
If you like to encourage future presence on this forum and/or third
party plugin/applet development, 'consider purchasing some plugins'
(http://license.isaksson.info))
You may also want to try my Android apps 'Squeeze Display'
(https://play.google.com/store/apps/details?id=info.isaksson.squeezedisplay)
and 'RSS Photo Show'
(https://play.google.com/store/apps/details?id=info.isaksson.rssphotoshow)
*Interested in the future of music streaming ? 'ickStream - A world of
music at your fingertips'
(http://forums.slimdevices.com/showthread.php?98467-Pre-Announcement-ickStream&p=743516)*.
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