ZyXEL Communications NSA320, User Manual

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Chapter 11 Packages
Media Server User’s Guide
283
220 Disk Shift Low This is how far the disk has moved relative to the spindle (this kind of
shift is usually due to shock).
221 G-Sense Error
Rate
Low This is the number of errors that have resulted from external vibration
and shock.
222 Loaded Hours This is how long the hard drive has operated under data load (this
requires movement of the magnetic head armature).
223 Load/Unload
Retry Count
This is how many time the magnetic head has changed position.
224 Load Friction Low This is resistance caused by friction in mechanical parts during operation.
225 Load/Unload
Cycle Count
Low This is the total number of load cycles.
226 Load 'In'-time This is the total time that the magnetic heads actuator has had a load
(not been in the parking area).
227 Torque
Amplification
Count
Low This is the number of attempts to compensate for variations in platter
speed.
228 Power-Off
Retract Cycle
Low This is how many times the magnetic armature was automatically
retracted because the power was cut.
230 GMR Head
Amplitude
This is the amplitude of thrashing (or the distance of repetitive forward
and reverse head motion).
231 Temperature Low This is the hard drive’s temperature.
240 Head Flying
Hours
This is the total time that the head has been positioning.
250 Read Error Retry
Rate
Low This is the number of errors in reading from the disk.
Table 93
S.M.A.R.T. Attributes (continued)
ID
ATTRIBUTE
NAME
BETTER DESCRIPTION