UltraTrak100 TX4 and UltraTrak100 TX8 User Manual
JBOD
Characteristics/Advantages | Disadvantages |
Uses 100% capacity of all hard drives | The failure of just one drive will result in all |
| data in an array being lost |
| Should not be used in mission critical |
| environments |
Recommended Applications for JBOD
•File archiving
•General fileserver
HOT SPARE DRIVE(S)
A good precaution to protecting your array integrity in the event of drive failure is maintaining a hot spare drive. A hot spare is a drive that is connected to the array system, but is not assigned as a member of the array. In the event of the failure of a drive within a functioning fault tolerant array, the hot spare is activated as a member of the array. The spare drive effectively takes the place of the failed drive and the RAID system immediately begins to rebuild data on the drive. When the rebuild is complete, the array is returned to fault tolerant status. Once the failed drive is replaced, the new drive is automatically recognized as a hot spare in the event of a subsequent drive fault.
PARTITION AND FORMAT THE ARRAY
Like any other type of fixed disk media in your system, a RAID array must also be partitioned and formatted before use. Use the same method of partitioning and formatting on an array as you would any other fixed disk.
Depending on the operating system you use, there may or may not be various capacity limitations applicable for the different types of partitions.
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