CDS Maintenance Summary: Friday 6th June 2025

WP12596 ADF VCXO IPC between IOP-LSC0 and OMCPI

Daniel, Vicky, Kevin, EJ, Erik, Dave

New h1ioplsc0 and h1omcpi models were installed to add two IPCs at 64kHz rate between lsc (sender) and omcpi (receiver)

    H1:FEC-7_IPC_IOP_PCI_ADF_VCXO_COS
    H1:FEC-7_IPC_IOP_PCI_ADF_VCXO_SIN

After the new models were restarted we noticed that the new receivers were flashing with a single RX error (1 out of 65536 in that second) every few seconds, randomized between the two new channels.

At this point we upgraded h1omc0 from RCG-5.3.0 to RCG-5.5.0, the new system has code to correct for such receive errors. Erik had the new 5.5.0 boot server ready to go, it is h1vmboot5-5 (a new naming scheme).

This required the rebuild and restart of all the models on this frontend (h1iopomc0, h1omc, h1omcpi). The new RCG added slow channels, so a DAQ restart was required for all these models.

The builds on RCG-5.5.0 use EJ's new rev-lock system, whereby all the source code (mdl and C) must be committed to subversion, and only the locked revision of these files are used to build the model, not what happens to be in the userapps models directory at the time. This worked like a charm.

Later Vicky added some filtermodules to h1omcpi, which required a second restart of  h1omcpi and the DAQ.

WP12597 Quarterly reboot h1guardian0

TJ

TJ rebooted the guardian machine, it came back with no problems.

WP12603 HEPI HAM1 model cleanup and removal of TT-L4C IPC senders, switch SEI-PROC to ISI HAM1 GS13 IPC

Jim, Erik, Dave:

New h1hpiham1 and h1seiproc models were installed with no problems. DAQ was restarted, both models had new INI files.

Move HWS data from h1hwsmsr local RAID to /ligo NFS

Erik, Dave:

Erik reconfigured the HWS machines to mount /ligo/data/hws as /data locally. Some files needed to be copied to the new location before the HWS cameras could operate and write current files to the new location. Archived data is being transferred to preserve lookbacks.

DAQ Restarts (plural)

Erik, Dave

Restart 1

11:02 DAQ was restarted for two changes, first the expected changes to h1ioplsc0 and h1omcpi. Second for the unexpected upgrade of h1omc0 to RCG-5.5.0 which added channels to h1iopomc0 and h1omc, and additional channels to h1omcpi.

Clean restart except GDS1 needed a second restart

Restart 2

13:52 DAQ was restarted for the h1hpiham1 and h1seiproc model changes.

Clean restart except GDS1 needed a second restart

Restart 3

14:33 DAQ was restarted for additional change to h1omcpi.

Clean restart except, you guessed it, GDS1 needed a second restart

Note that the Vacuum upgrade which would have required a DAQ restart did not go ahead today.