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Win2k/XP = Is JBOD safer than RAID 0?

D

doan

Golden Member
I have a small server that I use to backup stuff off the desktop systems in my house. It has several small drives. If I make a JBOD array and one drive fails can I easily recover the data on the working drives?

My guess is no, but I'm curious about others experiences.

David
 
You need RAID 1 for redundancy not JBOD.

"JBOD isn't really RAID at all, but I discuss it here since it is sort of a "third cousin" of RAID... JBOD can be thought of as the opposite of partitioning: while partitioning chops single drives up into smaller logical volumes, JBOD combines drives into larger logical volumes. It provides no fault tolerance, nor does it provide any improvements in performance compared to the independent use of its constituent drives. (In fact, it arguably hurts performance, by making it more difficult to use the underlying drives concurrently, or to optimize different drives for different uses.)"
Link to Storagereview article

 
Thanks....but raid 1 won't really work since the drives don't match....I'm mostly intersted in learning that if one drive fails do I lose everything on all drives or only the failed drive. I know the remaining drives won't be plug and play, but is the data resonably recoverable?
 
Ok...here's a quote from storage review:

Easier Disaster Recovery: If a disk in a RAID 0 volume dies, the data on every disk in the array is essentially destroyed because all the files are striped; if a drive in a JBOD set dies then it may be easier to recover the files on the other drives (but then again, it might not, depending on how the operating system manages the disks.) Considering that you should be doing regular backups regardless, and that even under JBOD recovery can be difficult, this too is a minor advantage.

I think I'll stick with simple one partition per drive.

Thanks to Blain for the storagereview link.
 
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