Raid 0 – LSI MegaRAID Enterprise 1600 User Manual

Page 31

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Chapter 3 RAID Levels

17

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, MegaRAID can use multiple SCSI
channels and 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 32

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