Kontron Kiss-Stor 0/5 User Manual page 16

RAID 5: Independent data disks with distributed parity blocks
Characteristics:
q Each entire data block is written on a data disk.
Parity for blocks in the same rank is generated
on Writes, recorded in a distributed location
and checked on Reads.
q Highest Read data transaction, medium Write
data transaction rate.
q Relatively low ratio of ECC (Parity) disks to
data disks means high efficiency (compared to
other RAID levels).
q Good aggregate transfer rate.
q Storage capacity = (No. of disks – 1) ×
(capacity of smallest disk)
KISS-Stor 0/5 – User's Manual
Introduction to RAID Levels
Recommended use:
q File and application
servers
q Database servers
q WWW, E-mail and News
servers
q Intranet servers
q Most versatile RAID level
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