ZyXEL NSA320 User Guide - Page 278
Read Error Retry, Load/Unload
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Chapter 11 Package Management Table 90 S.M.A.R.T. Attributes (continued) ID ATTRIBUTE NAME BETTER DESCRIPTION 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. 278 Media Server User's Guide
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