Promise Technology FastTrak SX4100 Manuel d'utilisateur Page 48

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FastTrak SX4100 User Manual
40
RAID 1
Recommended Applications for RAID 1
Accounting
•Payroll
•Financial
Any application requiring very high availability
RAID 5
Recommended Applications for RAID 5
File and Application servers
WWW, E-mail, and News servers
Intranet servers
Most versatile RAID level
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
High Read data transaction rate
Medium Write data transaction rate
Good aggregate transfer rate
Disk failure has a medium impact on
throughput
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