Table of Contents
Advertisement
Selecting the Best RAID Level
Use the Table below to select the RAID levels that are most appropriate for the logical drives on your storage space,
based on the number of available disk drives and your requirements for performance and reliability.
RAID level
Redundancy
RAID 0
No
RAID 1
Yes
RAID 1E
Yes
RAID 10
Yes
RAID 5
Yes
RAID 5EE
Yes
1
Yes
RAID 50
RAID 6
Yes
*
Yes
RAID 60
Because it supports a maximum of four disk drives, the Adaptec 2420SA RAID controller can't support RAID 50 or RAID 60.
1
Disk drive usage, read performance, and write performance depend on the number of drives in the logical drive. In
general, the more drives, the better the performance.
Disk Drive
Read
Usage
Performance
100%
50%
50%
50%
67 – 94%
50 – 88%
67 – 94%
50 – 88%
50 – 88%
Appendix B: Understanding RAID
Write
Built-in Hot
Performance
Spare
No
No
No
No
No
Yes
No
No
No
89
Minimum
Maximum
Disk Drives
Disk Drives
1
16
2
2
3
16
4
16
3
16
4
16
6
128
4
16
8
128
Hide quick links:
Advertisement
Table of Contents
