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Re: on set p2 backup...

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Re: on set p2 backup...
by Dylan Reeve on Aug 23, 2008 at 11:38:26 pm

Be aware, copying a file to a RAID 1 device isn't really making two copies of it. The drives can't be used as standalone devices. While it is possible to remove one of the paired drives from the enclosure and use just one, the RAID set it then operating in a 'damaged' mode which is not a great idea at all.

Also, the other danger with RAID is that the data on the drives is inaccessible without the RAID controller. While unlikely, it is possible that the enclosure's RAID controller dies, in which case you need to find an identical controller (sometimes even same firmware revision) to be able to read the data from the drive again. In many enterprise situations RAID controllers are always acquired in pairs, one for use and the other as a spare.

In my opinion, if you want two copies of the media, you should make two stand-alone copies. Something like ShotPut is ideal for that.



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