Dell PowerVault 221S Manual - Halaman 9
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A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS
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Not recommended:
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Note: While this configuration is not recommended, it can be configured and utilized.
Online Transaction Processing Servers
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.
servers that require the maximum availability and redundancy possible.
I/O Profile
I/O Profile
(Read/Write)
(Sequential/Random)
80/20
Random
Application
OLTP
Recommended:
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PAGE 9
RAID 5 – Recommended for web 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 0 – Recommended for solutions where web server will be part of a group of
web servers that service a large internet portal and performance is the highest
concern. In this situation, availability and redundancy is handled by the cluster
group and does not need to happen at the disk level.
RAID 1 – Good solution for small websites which do not require high storage
capacity.
Concatenated - This solution is not recommended due to lack of redundancy and
data protection
• Table 2-9: OLTP General IO profile
Bandwidth
Moderate
• Table 2-10: OLTP RAID Guidelines
Concatenated
Recommended
RAID 10 – Since OLTP systems are very critical for most business, this RAID
configuration is highly recommended due to the high availability and
redundancy and good performance.
RAID 5 – Recommended for OLTP servers that require maximum storage
capacity and only base data protection and performance.
They are generally mission critical
Latency
IO Size
Sensitivity
2k-8k
Moderate
RAID Level
0
1
10
Not Recommended
VER A02
Growth
Criticality
Rate
Low
High
5
50
Possible
11/17/2005