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A REFERENCE GUIDE FOR OPTIMIZING DELL™ MD1000 SAS SOLUTIONS
Table13: Archival File Server RAID Guidelines
Application
File -
Archival
Recommended:
RAID 10 – Recommended due to high availability, redundancy, and good performance.
•
RAID 5 – Recommended for file servers that require maximum storage capacity and
•
moderate data protection and performance.
RAID 50 – Recommended for those solutions that require a balance between storage
•
capacity and performance.
Possible:
RAID 1 – Possible solution in situations which do not require high storage capacity.
•
Not recommended:
RAID 0, Concatenated - These are not recommended due to lack of redundancy and data
•
protection. Even for long term archival storage which is intended to be a backup of
important files, it is not a recommended solution.
Note: While these configurations are not recommended, they can be configured and utilized.
User file store characteristics and recommendations
Table 14: User Store File Server General IO profile
I/O Profile
(Read/Write)
80/20
Table 15: User Store File Server RAID Guidelines
Application
File – User
file stores
PAGE 31
RAID Level
Concatenated
0
Recommended
I/O Profile
(Sequential/Random)
Sequential
RAID Level
Concatenated
0
Recommended
1
10
Not Recommended
I/O
Latency
Bandwidth
Size
Sensitivity
Heavy
>64k
High
1
10
Not Recommended
VER A00
5
50
Possible
Growt
Criticality
h Rate
Varies
Moderate
5
50
Possible
5/06/2005
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