Toshiba Magnia 560S - Manual (Page 43)

RAID Levels
RAID Levels
25
RAID 0
RAID 0 provides disk striping across all drives in the RAID subsystem. RAID 0 does
not provide any data redundancy, but does offer the best performance of any RAID
level. RAID 0 breaks up data into smaller blocks and then writes a block to each drive in
the array. The size of each block is determined by the stripe size parameter, set during
the creation of the RAID set. RAID 0 offers high bandwidth. By breaking up a large file
into smaller blocks, RAID Controller Kit-G can use several drives to read or write the
file faster. RAID 0 involves no parity calculations to complicate the write operation.
This makes RAID 0 ideal for applications that require high bandwidth but do not
require fault tolerance.
Uses RAID 0 provides high data throughput, especially for large files. Any
environment that does not require fault tolerance.
Strong Points Provides increased data throughput for large files. No capacity loss
penalty for parity.
Weak Points Does not provide fault tolerance. All data lost if any drive fails.
Drives One to 15
The initiator takes one ID per channel. This leaves 15 IDs available
for one channel.
Segment 1
Segment 3
Segment 5
Segment 7
etc.
Segment 2
Segment 4
Segment 6
Segment 8
etc.