Promise Technology UltraTrak100 TX8 - Manual (Page 17)

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Recommended Applications for RAID 1
•
Accounting
•
Payroll
•
Financial
•
Any application requiring very high availability
RAID 3
Advantages Disadvantages
High Read data transfer rate
Disk failure has an insignificant impact on
throughput
Parity drive can become bottleneck if a lot
of writes are occurring
Recommended Applications for RAID 3
•
Image Editing
•
Prepress Applications
•
Any application requiring high throughput
RAID 5
Characteristics/Advantages Disadvantages
High Read data transaction rate
Medium Write data transaction rate
Good aggregate transfer rate
Disk failure has a medium impact on
throughput
Recommended Applications for RAID 5
•
File and Application servers
•
WWW, E-mail, and News servers
•
Intranet servers
•
Most versatile RAID level
RAID 0+1
Characteristics/Advantages Disadvantages
Implemented as a mirrored array whose
segments are RAID 0 arrays
High I/O rates are achieved thanks to
multiple stripe segments
High disk overhead - uses only 50% of
total capacity
Recommended Applications for RAID 0+1
•
Imaging applications
•
Database servers
•
General fileserver