Apple 3X108 Benutzerhandbuch

Server Diagnostics Test Reference

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.

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.