Dell PowerVault MD1120 - Manual (Page 35)

A REFERENCE GUIDE FOR OPTIMIZING DELL™ POWERVAULT™ MD1XXX FAMILY SAS SOLUTION VER A02
PAGE 35 6/16/2008
• RAID 50 – Recommended for those solutions that require a balance between storage
capacity and performance.
• RAID 60 – Recommended for those solutions that require a balance between storage
capacity and performance with maximum data protection.
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.
Table 19: Archival File Server Enclosure Guidelines
Application
Enclosure
MD1000
3U / 15 x 3.5” drive
MD1120
2U / 24 x 2.5” drive
File-Archival
Recommended Not Recommended Possible
Recommended:
• MD1000 – Recommended for file servers focused on data archival due to focus on
storage capacity.
Possible:
• MD1120 – Possible option for File servers where performance is high priority.
User file store characteristics and recommendations
Table 20: User Store File Server General I/O profile
I/O Profile
(Read/Write) I/O Profile
(Sequential/Random)
Bandwidth
I/O
Size Latency
Sensitivity Growt
h Rate
Criticality
80/20 Sequential Heavy >64k High Varies Moderate