User guide

135MAXDATA SR1202 M1 – StorView
®
RAID User Guide
15 Statistics
Overview
StorView and the SR1202 RAID Controller will monitor all incoming commands, and calculate various
statistics. The statistics monitored include:
• Command Count
• Command Alignment
• Command Size
• Read-Ahead Statistics
• Write Clustering Statistics
• RAID 5/50 Write Statistics
From the Main screen click the Logical Stats button in the Tool Bar.
The controller maintains individual access statistics for individual logical drives or all logical drives,
controllers, and individual or all ports. These can be used to help balance the load from the host.
You may also export the statistical data to a comma delimited file for use in third-party software
products.
Access Statistics
These statistics are for both reads and writes, and can be used to tune the operating system for
optimum performance.
Figure 106. Statistics Screen - Access Tab
Every time statistics are viewed, the controller first outputs the time since the statistics were last
reset. However, the statistics can be cleared at any time. This is useful in determining the access
pattern for a particular test or period of time.