The GS700FR was a mid-range PC server model from the GS series announced by Toshiba in October 1997. In addition to featuring the scalability and dependability common throughout the GS series, the GS700FR was equipped with the new Super Fault Resilient (SFR) function, a technology that avoids system crashes.
Some system crashes are triggered by certain extraordinary conditions (such as the timing of a certain process, etc.) that occur due to transient hardware or software faults. In many cases when a transient fault occurs, the system can continue to operate correctly without crashing by re-running the process that triggered the system crash. A quick rollback function watches for these conditions and when it detects a system crash situation, the function rolls back the active program to the state prior to the crash point and, after the system restarts, re-runs the program. When successful, processing will continue as if no problems had ever occurred. According to Toshiba’s own testing, the SFR function raised system reliability by a factor of four.