ZyXEL Communications 4.6 ユーザーズマニュアル

Chapter 10 Packages

Media Server User’s Guide

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. 

S.M.A.R.T. Attributes  (continued)