Start SSD cache performance modeling

The start ssdCache performanceModeling command starts performance modeling for the SSD cache.

Supported Arrays

This command applies to any individual storage array, including the E2700, E5600, E2800, and E5700 arrays, as long as all SMcli packages are installed.


To execute this command on an E2800 or E5700 storage array, you must have the Support Admin role.


Performance modeling monitors and measures I/O activity for a period of time and estimates performance for various SSD cache sizes. Performance is estimated using two metrics: cache hit percentage and average response time. The performance modeling data is not available until you stop the operation using the stop ssdCache performanceModeling command.


start ssdCache [ssdCacheName] performanceModeling


Parameter Description
ssdCache The name of the SSD cache for which you want to model performance. Enclose the SSD cache name in square brackets ([ ]). If the SSD cache name contains special characters or consists only of numbers, you must enclose the SSD cache name in double quotation marks (" ") inside square brackets.


Performance modeling ends and the performance modeling data is available when one of the following conditions occurs:

Performance modeling ends, but no data is available when one of the following conditions occurs:

Minimum firmware level