Tape monitoring

The status of the output streams to disk and tape are continuously updated on the dp0_menu window. On the bottom right of this window (see figure 2) is a ``monitor'' button. By pressing this button one gets a small monitor window for every tape drive currently defined. Figure 8 shows such a monitor window. It has the following information:

• top bar: device name and tape label
• top left: Average data rate to tape (here 0.49 Mby/sec)
• top left: % of the tape full (here 7.69%)
• EEOT: estimated time at which the tape will be full based on the average speed to tape as shown above (here 17:24)
• top scrollbar: instantaous rate to tape (total length == 1 Mby/sec)
• bottom scrollbar: % of tape full (total length == Vol limit (here 4Mby))
• text field below bottom scrollbar: number of Mby on tape (here 277 Mby)
  This number moves in parallel with the above scrollbar to the right as the tape is being filled.
• text field in the bottom half of the window:
  Some miscellanous information, like owner pid, trigger name, number of records written, Volume limit of the media, dp0 state and buffer state.

 
Figure 8:   Tape monitor window.