ZyXEL NSA320S User Guide - Page 264

Chapter 10 Packages Table 89 S.M.A.R.T. Attributes (continued) ID ATTRIBUTE NAME BETTER DESCRIPTION 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 Low Rate 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 Low Cycle Count 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 Low Amplification Count This is the number of attempts to compensate for variations in platter speed. 228 Power-Off Low Retract Cycle 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 Low Rate This is the number of errors in reading from the disk. 264 Media Server User's Guide