Chapter 3 RAID Levels
19
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
Express 500 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 32
Summary of Contents for MegaRAID Express 500
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Page 14: ...MegaRAID Express500 Hardware Guide xiv ...
Page 18: ...MegaRAID Express 500 Hardware Guide 4 MegaRAID Express 500 Block Diagram ...
Page 102: ...MegaRAID Express 500 Hardware Guide 88 ...
