Biostar TF570 Setup Manual page 28

Motherboard Manual
RAID 0+1:
RAID 0 drives can be mirrored using RAID 1 techniques. Resulting in a RAID 0+1
solution for improved performance plus resiliency.
Features and Benefits
Drives: Minimum 4, and maximum is 6 or 8, depending on the platform.
-
- Benefits: Optimizes for both fault tolerance and perf ormance, allowing for
automatic redundancy. May be simultaneously used with other RAID
lev els in an array, and allows f or spare disks.
- Drawbacks: Requires twice the av ailable disk space f or data redundancy,
the same as RAID level 1.
Fault Tolerance: Yes.
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Block 1
B loc k 3
B loc k 5
Spanning (JBOD):
JBOD stands for " Just a Bunch of Disks". Each drive is accessed as if it were on a
standard SCSI host bus adapter. This is useful when a single drive configuration is
needed, but it offers no speed improvement or fault tolerance.
Features and Benefits
- Uses: JBOD works best if y ou hav e odd sized driv es and y ou want to
combine them to make one big drive.
- Benefits: JBOD prov ides the ability to combine odd size driv es using all of
the capacity of the driv es.
Drawbacks: Decreases performance because of the difficulty in using
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driv es concurrently.
- Fault Tolerance: Yes.
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Block 2 Block 1
Block 4 B lock 3
Block 6 B lock 5
Single Logical
Drive
B lock 2
B lock 4
B lock 6
Disk 1: 40GB
Disk 2: 80GB
Disk 3: 40GB
Disk 4: 120GB