Dell PowerVault MD1120 Optimization Manual page 33

A REFERENCE GUIDE FOR OPTIMIZING DELL™ POWERVAULT™ MD1XXX FAMILY SAS SOLUTION
Online Transaction Processing (OLTP) oriented servers are used in a number of industries for the
entry and retrieval of transactions. For example, OLTP is common in banking, airlines, mail-order,
and supermarkets. These servers are generally critical and require maximum availability and
redundancy.
Table 14: Database or OLTP General IO profile
I/O Profile
(Read/Write)
80/20
Table 15: OLTP RAID Guidelines
Application
OLTP
Recommended:
•
RAID 10 – Since OLTP systems are critical for most business, this RAID configuration is
highly recommended because of the high availability and redundancy and good
performance.
•
RAID 5 – Recommended for OLTP servers that require maximum storage capacity and
moderate data protection and performance.
•
RAID 6 – Recommended for OLTP servers that require maximum storage capacity,
enhanced data protection, and moderate performance.
•
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 for situations which do not require high storage capacity.
Not recommended:
•
RAID 0, Concatenated - These are not recommended because of the lack of
redundancy and data protection.
Note: While these configurations are not recommended, they can be configured and
used.
Table 16: OLTP Enclosure Guidelines
Application
PAGE 33
I/O Profile
(Sequential/Random)
Random
RAID Level
0
Recommended
Enclosure
I/O Latency
Bandwidth
Size Sensitivity
Moderate 8k Moderate
1 10 5
Not Recommended
MD1000
VER A02
Growth
Criticality
Rate
Low High
6 60
50
Possible
MD1120
6/16/2008