Promise Technology 15110 user manual 215

		Chapter 7: Technology Background
RAID 3
	Advantages	Disadvantages
	High Read data transfer rate	Parity drive can become bottleneck if a
	Disk failure has an insignificant impact	lot of data is being written to the disk
		array
	on throughput

Recommended Applications for RAID 3

•Image Editing

•Prepress Applications

•Any application requiring high throughput

RAID 5

Advantages	Disadvantages
High Read data transaction rate	Disk failure has a medium impact on
Medium Write data transaction rate	throughput
Good aggregate transfer rate
Recommended Applications for RAID 5
• File and Application servers	• Intranet servers
• WWW, E-mail, and News servers	• Most versatile RAID level

RAID 10

Advantages	Disadvantages
Implemented as a mirrored disk array	Very high disk overhead - uses only
whose segments are RAID 0 disk	50% of total capacity
arrays
High I/O rates are achieved thanks to
multiple stripe segments

Recommended Applications for RAID 10

•Imaging applications

•Database servers

•General fileserver

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