banned for life wrote: > We had a Black Armor NAS go tits up while rebuilding the array. Most of > it was backed-up. Some of the folders had not been backed-up for a > couple of months but it was better than a total loss.
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. > The replacement is two Synology DS1513+'s that are separated by about > half a mile and connected with 1Gbps fiber. They are configured for > Raid-6 and using High Availability, they constantly mirror each other. > They also support hot spares if you are made of money but we just went > with 5 each 3gb WD Red drives. 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. ------------------------------------------------------------------------ JJZolx's Profile: http://forums.slimdevices.com/member.php?userid=10 View this thread: http://forums.slimdevices.com/showthread.php?t=100561 _______________________________________________ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
