Calgarypuck Forums - The Unofficial Calgary Flames Fan Community - View Single Post - Tell me about RAID and/or other backup solutions!

photon · 08-07-2013, 01:09 PM

RAID isn't a backup in and of itself. RAID 1 is mirroring of drives (so whatever one looks like the other will look like).

If, for example, you had two hard drives mirrored in your computer (or some other type of RAID that involves multiple copies of your data), that's not a backup because if you delete the file or save over the file with undesired changes, you can't recover the old state from a backup. Or if an app corrupts the file it'll be corrupt and you can't recover a non-corrupt version. Or if the operating system decides to eat the file (or the disk) for lunch it'll eat all involved files or drives.

So in that respect RAID is not a backup.

08-07-2013, 01:09 PM	#6
photon The new goggles also do nothing. Join Date: Oct 2001 Location: Calgary Exp:	RAID isn't a backup in and of itself. RAID 1 is mirroring of drives (so whatever one looks like the other will look like). If, for example, you had two hard drives mirrored in your computer (or some other type of RAID that involves multiple copies of your data), that's not a backup because if you delete the file or save over the file with undesired changes, you can't recover the old state from a backup. Or if an app corrupts the file it'll be corrupt and you can't recover a non-corrupt version. Or if the operating system decides to eat the file (or the disk) for lunch it'll eat all involved files or drives. So in that respect RAID is not a backup. __________________ Uncertainty is an uncomfortable position. But certainty is an absurd one.