Promise Technology VTrak 15110 Benutzerhandbuch
Chapter 7: Technology Background
215
RAID 3
Recommended Applications for RAID 3
•
•
Image Editing
•
Prepress Applications
•
Any application requiring high throughput
RAID 5
Recommended Applications for RAID 5
RAID 10
Recommended Applications for RAID 10
•
•
Imaging applications
•
Database servers
•
General fileserver
Advantages
Disadvantages
High Read data transfer rate
Disk failure has an insignificant impact
on throughput
Disk failure has an insignificant impact
on throughput
Parity drive can become bottleneck if a
lot of data is being written to the disk
array
lot of data is being written to the disk
array
Advantages
Disadvantages
High Read data transaction rate
Medium Write data transaction rate
Good aggregate transfer rate
Medium Write data transaction rate
Good aggregate transfer rate
Disk failure has a medium impact on
throughput
throughput
•
File and Application servers
•
WWW, E-mail, and News servers
•
Intranet servers
•
Most versatile RAID level
Advantages
Disadvantages
Implemented as a mirrored disk array
whose segments are RAID 0 disk
arrays
High I/O rates are achieved thanks to
multiple stripe segments
whose segments are RAID 0 disk
arrays
High I/O rates are achieved thanks to
multiple stripe segments
Very high disk overhead - uses only
50% of total capacity
50% of total capacity