james.batch@LIGO.ORG - posted 16:57, Wednesday 02 September 2015 - last comment - 17:00, Wednesday 02 September 2015(21155)
Frame writer h1fw3 added to DAQ
WP 5455 A new frame writer, h1fw3, has been added to the DAQ system. This frame writer is a disk clone of the frame writer that Livingston is running, with the system identity changed to LHO h1fw3. The purpose of this frame writer is to see if there are differences in retransmission request rates between h1fw2 and h1fw3. The h1fw3 is writing science, commissioning, and trend files to a local disk. The raw minute files are not being written by h1fw3. If all tests are successful, the new frame writers will be installed in a permanent configuration on Tuesday Sept. 8.
I have added fw3 to the DAQ MEDM screen. Now that three frame writers are writing science frames, I am comparing the frame size for all three and the large green bar will show if all three agree with each other. We now have two frame writers wriring commissioning frames, so I can now compare these as well.