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66 Chapter 4 Managing Physical Storage

4.3.2 Viewing SMART Data and Attributes (SMART Data and SMART Attributes Tabs)

Self-Monitoring, Analysis, and Reporting Technology (SMART) is a monitoring system for

SATA drives to detect and report on various indicators of reliability, with the hope of

anticipating failures. SMART is not supported on SAS drives. With SMART, a SATA disk's

integrated controller works with various sensors to monitor various aspects of the

drive's performance, determines from this information if the drive is behaving normally

or not, and makes available status information to software that probes the drive and

look at it.

The xStack Storage collects the SMART information and displays it on the following

read-only tabs:

 Smart Data. Shows SMART overview, self-test, and offline data collection

information for a SATA drive (see Figure 4-4).

 Smart Attributes. Shows SMART attributes that are defined differently by each

vendor (see Figure 4-5).

SMART is supported on SATA drives only, not on SAS drives.

Figure 4-4. Example of SMART Data Tab

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