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Figure 6. Physical disks page
Wear Usage Monitoring
The Smartmon Tool
You can use a software tool — Smartmon — that monitors three Self-Monitoring, Analysis, and Reporting Technology
(SMART) attributes for SSDs. Smartmon includes a command line utility, smartctl, used to check these attributes.
Obtaining the Smartmon Tool
The Smartmon tool is available from the following sources:
•
From Intel as part of the "Intel Solid-State Drive Toolbox" at http://downloadcenter.intel.com.
•
From http://sourceforge.net/apps/trac/smartmontools/wiki.
NOTE: Use the latest version of the Smartmon tool with the Intel 320 Series SSDs.
SMART Attributes
The three primary attributes measured by the Smartmon tool are:
•
Workload Timer ID E4h — Time elapsed during the current workload.
•
Timed Workload Host Reads Percentage ID E3h — Percentage of I/O operations that are read operations during
the last workload timer loop.
•
Timed Workload Media Wear Indicator ID E2h — Drive wear during the last wear timer loop, as a percentage of
the maximum rated cycles.
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