HP 3000 Manuals HP 3000 Manuals
Powerfail Recovery Powerfail recovery works for direct-connect sessions using character mode. The system also attempts to recover direct-connect sessions using block mode; however, this might not be successful if the powerfail has affected terminal configuration. This is especially true for VPLUS applications. In the event of a DTC powerfail, some data loss might occur. Data buffered in the DTC at the time of the powerfail is not recoverable. Upon system powerfail, the DTC retains sessions for approximately 20 minutes. This exceeds the duration of battery back-up on the system (15 minutes). Upon DTC powerfail, the system also retains sessions for about 20 minutes. If power is not restored before this time, sessions are aborted. The terminal appears "hung" for approximately two minutes after power has been restored to the DTC (the time it takes for the DTC selftest and download to complete). After this time, device control is restored. No "powerfail occurred" message is displayed. To confirm that device control has been restored, press Enter until the colon prompt ( :) is displayed. In the event of a DTC powerfail, printer and modem connections are aborted.