| 摘要 |
<p>PURPOSE:To prevent a system down due to an unprepared interruption of a power source by performing a power source interruption operation according to a power source interruption instructing switch and the contents of a processing completion command storing memory. CONSTITUTION:A host computer 1 informs a command for turning a power off to an FS 4 through a LAN cable 5 in a closed processing. The FS 4 stores its command code in a MEM 25. When an operator turns an S-PW 10(21) of the FS 4 on, a code of a power off command of the MEM 25 starts a checking on all the host computers, a CPU 24 knows at least one host computer is operating, a bit set is not performed to a P-Reg 29. When all the host computers 1-3 are turned power off, if an S-PW 21 is turned on, a power source unit 30 interrupts the power source under an AND condition of the P-Reg 29 and the S-PW 21.</p> |
