30
Table 2. RAID Level Reference Guide
Each drive can be accessed as a
No fault tolerance - failure of one
drive results in complete data loss
Offers the highest performance
No fault tolerance - failure of one
drive results in complete data loss
Provides convenient low-cost
Useable storage space is 50% of
data redundancy for smaller
total available capacity. Can
High read performance and
Useable storage capacity equals
total capacity of all drives in the
application servers which
with data protection for up to
High read performance, and
Not recommended for database
applications that require
with data protection with a
frequent/heavy write sessions.
Can handle 1 disk failure.
applications that require
with data protection in case of
frequent/heavy write sessions.
applications that require
with data protection in case of
frequent/heavy write sessions.
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