- Excel / Meridian Data Computer Drive User Manual

94 EXCEL MERIDIAN DATA
RAID 10
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
Very high disk overhead - uses only
50% of total capacity
Recommended Applications for RAID 10
• Imaging applications
• Database servers
• General fileserver
RAID 50
Advantages
Disadvantages
High Read data transaction rate
Medium Write data transaction rate
Good aggregate transfer rate
High reliability
Supports large volume sizes
Higher disk overhead than RAID 5
Recommended Applications for RAID 50
• File and Application servers
• Transaction processing
• Office application with many users accessing small files
RAID 60
Advantages
Disadvantages
High Read data transaction rate
Medium Write data transaction rate
Good aggregate transfer rate
Safest RAID level
High disk overhead – equivalent of two
drives used for parity
Slightly lower performance than RAID
50
Recommended Applications for RAID 60:
• Accounting and Financial
• Database servers
• Any application requiring very high availability