Dell PowerVault 221S Handbuch - Seite 11
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A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS
•
Not recommended:
•
Note: While these configurations are not recommended, they can be configured and
User file store characteristics and recommendations
I/O Profile
I/O Profile
(Read/Write)
(Sequential/Random)
80/20
Sequential
Application
File – User
file stores
Recommended:
•
•
Possible:
•
•
•
•
PAGE 11
RAID 1 – Possible solution in situations which do not require high storage
capacity.
RAID 0, Concatenated - These are not recommended due to lack of
redundancy and data protection. Since long term archival storage is indented
in some ways to be a backup of important files, it is not a recommended
solution.
utilized.
• Table 2-13 User Store File Server General IO profile
Bandwidth
Heavy
• Table 2-14: User Store File Server RAID Guidelines
Concatenated
Recommended
RAID 5 – Recommended for file servers that require maximum storage
capacity and only base data protection and performance.
RAID 50 – Recommended for those solutions that require a balance between
storage capacity and performance.
RAID 1 – Possible solution situations which do not require high storage
capacity.
RAID 10 – Possible solution for situations that require greater availability and
redundancy but not as much disk capacity.
RAID 0 – While this solution is not fault tolerant, RAID 0 may be useful for file
servers that require better performance and maximum storage capacity, for
example, where backups are expected to maintain data in the event of a failure.
Concatenated – This solution could be use for situations that require maximum
scalability as drives could be added as storage needs grow. For file servers
Latency
IO Size
Sensitivity
>64K
High
RAID Level
0
1
10
Not Recommended
VER A02
Growth
Criticality
Rate
Varies
Moderate
5
50
Possible
11/17/2005