Table of Contents
Advertisement
RAID 1E
Implemented as a mirrored disk array
whose segments are RAID 0 disk
arrays
High I/O rates are achieved thanks to
multiple stripe segments
Can use an odd number of disks
Recommended Applications for RAID 1E
•
Imaging applications
•
Database servers
•
General file server
RAID 3
Good for large files with high transfer
rates where fault tolerance is also
required
Recommended Applications for RAID 3:
•
Video editing
•
Multimedia production
•
File and Application server
RAID 5
High Read data transaction rate
Medium Write data transaction rate
Good aggregate transfer rate
Recommended Applications for RAID 5
•
File and Application servers
•
WWW, E-mail, and News servers
Advantages
Advantages
Advantages
Chapter 9: Technology Background
Disadvantages
Very high disk overhead - uses only
50% of total capacity
Disadvantages
Random write performance only fair.
Disk failure has a medium impact on
throughput
Disadvantages
Disk failure has a medium impact on
throughput
•
Intranet servers
•
Most versatile RAID level
333
Advertisement
Table of Contents
