Abstract: The invention discloses a maintaining method for an external controller-based storing apparatus, which the maintaining method includes the steps of: a) connecting a portable maintenance apparatus to an external controller-based storage apparatus; b) when the portable maintenance apparatus is connected to and detected by the external controller-based storage apparatus, executing an application program set automatically; c) gathering system information of the external controller-based storage apparatus; d) analyzing the system information and generating an analytic result; e) loading a maintaining instruction according to the analytic result from the portable maintenance apparatus; and f) executing the maintaining instruction for maintaining the external controller-based storage apparatus.

Abstract: A backbone stretching exerciser including a base frame unit having two front lugs and two rear guide rollers respectively disposed at the top, a seat frame unit having a fixed end pivoted to front lugs of the base frame unit and a free end, a back frame unit pivoted to the free end of the seat frame unit and adapted for supporting the user's back, the back frame unit having two substantially arched guide tubes bilaterally disposed at a back side thereof and respectively supported on the guide rollers of the base frame unit, and a hydraulic cylinder connected between the base frame unit and the free end of the seat frame unit to impart a damping resistance to the seat frame unit.