A DRIVE RAID 0 VOLUME IS FAILING GENERATION 2 SAMSUNG HD501LJ S/N S0ZFJ1MQ205501 CR100-12 465.7G ARRAY
> RAID
Rapid Array of Independent Disks
RAID logically combines several identical disk-drives for better performance or for better reliability.
For better performance, one RAID configuration "stripes" the data, i.e., when you write a block of data, the block is split into "stripes", and each stripe is written to a different disk-drive.
Since each stripe is smaller than the whole block, it is faster to transfer the data in "parallel".
For better reliability, another RAID configuration writes each block of data _identically_ to multiple disk-drives. Thus, if one disk-drive fails, your data still exists on the other disk-drives.
You can then replace the "bad" disk in the array, and use software to "rebuild" this "mirroring" of your data, by copying all the data from one of the "good" disks onto the "new" disk.
So, in your case, one of the disks in your array is failing. Identify it. Replace it. Rebuild your array.
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