Promise Technology FastTrak TX2300 User Manual Page 101

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Chapter 6: Technology
95
RAID 1
Recommended Applications for RAID 1
Accounting
•Payroll
•Financial
Any application requiring very high availability
JBOD
Recommended Applications for JBOD
Any application requiring multiple disk drives but where read/write speed or
fault-tolerance are not important
Applications were low-cost operation critical
Advantages Disadvantages
Simplest RAID storage subsystem
design
Can increase read performance by
processing data requests in parallel
since the same data resides on two
different drives
Very high disk overhead - uses only
50% of total capacity
Advantages Disadvantages
Enables you to manage a large number
of disk drives from a single controller
The failure of one drive has no effect
upon the data in other disk drives
An alternative to RAID without any
RAID advantages
Should not be used in mission critical
environments
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