Viewing command cluster statistics
Viewing command cluster statistics
To increase performance, the controller can cluster sequential write commands together to create a larger write command. This results in less commands being sent to the hard drives. Additionally, if sufficient data is clustered by the controller, it can perform a a full stripe write for RAID5/50 arrays. This significantly improves performance. In cases where the host does not send a sufficient number of outstanding writes, writeback cache can be used to delay the write to disk, increasing the likelihood of clustering more data.
The View Command Clustering Statistics screen is accessed by going to the Statistics Types menu (see “Viewing all statistics” on page 155), then selecting View Command Clustering Statistics.
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