Apple 3X108 manual SSD Threaded Media Scan Not available

Hard Drive Tests

When Server Diagnostics Mac OS X starts, it performs a hardware existence test. Hard drives and solid-state drives found during this test can be tested individually using hard drive tests.

Test	Estimated completion time	Description
Threaded Surface Scan	3 hours for a 1 TB drive	Scans the entire surface of
		a hard drive.
		This test is available for hard
		drives, but not solid-state drives.
Threaded Surface Short Scan	2 minutes	Scans the first 10 GB of a hard
		drive.
		This test is available for hard
		drives, but not solid-state drives.
Check SMART Status	1 second	Checks the SMART status of
		a hard drive.
		This test is available for hard
		drives, but not solid-state drives.
Short Random Multi-block	5 minutes	Performs a threaded, random
		multi-block read of random
		ranges of the target hard drive.
		This isn’t a full surface scan,
		but it causes rapid seeking and
		reading of hard drive blocks. If
		a block can’t be read, an error
		occurs.
		This test is available for hard
		drives, but not solid-state drives.
SSD Threaded Media Scan	Not available	Scan’s the entire accessible area
		of a solid-state drive.
		This test is available for solid-
		state drives, but not hard drives.
SSD New Drive SMART Data	Not available	Checks the SMART status of a
		solid-state drive.
		This test is available for solid-
		state drives, but not hard drives.

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Appendix    Server Diagnostics Test Reference