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5.3.2
Assigning RAID Levels
characteristics for RAID drive arrays at each RAID level is shown in
Table
5.6.
Table 5.6
Performance Characteristics for RAID Levels
RAID Level
Performance Characteristics
0
Excellent for all types of I/O activity, but provides no data
security.
1
Provides data redundancy and good performance.
5
Provides data redundancy and good performance in most
environments.
10
Provides data redundancy and excellent performance.
50
Provides data redundancy and very good performance.
Only one RAID level can be assigned to each logical drive.
shows the drives required per RAID level.
Table 5.7
Number of Physical Drives for RAID Levels
RAID
Level
Minimum # of Physical Drives Maximum # of Physical Drives
0
1
5
10
50
Note:
The Megaraid SCSI 320-1 controller supports a maximum
of 15 physical drives.
Creating Logical Drives
Copyright © 2002 by LSI Logic Corporation. All rights reserved.
1
2
3
4
6
Table 5.7
15
2
15
14
15
5-11
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