I've written a script, /opt/rtcds/userapps/release/sqz/h1/scripts/switch_nom_sqz_states.py, which will change the nominal states of the SQZ Guardian nodes to be used when it's decided that H1 will observe without SQZ, a process adapted from the ObservationWithOrWithoutSqueezing wiki. This is intended to save operators time so the switch to a configuration where H1 can observe without SQZ is quick and brings us to observing promptly.

The script first commits any uncommitted changes in the SQZ Guardians to svn with an "as found" message before the nominal states are changed. Once changed, the nodes are then loaded and SQZ_MANAGER is requested to NO_SQUEEZING, which should make sure all nodes are in the state they should be.

This script also adds the 'syscssqz' model to the EXCLUDE_LIST in the DIAG_SDF node when going to the no-SQZ configuration. This is to facilitate any SDF diffs that may appear as a result of SQZ misbehaving and will allow H1 to go to observing while ignoring any diffs in this model. More models to exclude can be added in the script as desired.

Since the pysvn package used by the script to commit to svn is a Debian package not found in conda, all conda environments must be deactivated for this script to work. Hence, when running this script, utilize the 'noconda' bash script wrapper found in userscripts. Calling this script to change to the configuration where H1 will observe without SQZ would look as follows:

noconda python switch_nom_sqz_states.py without

This script can also be used to go back to the configuration where H1 is observing with SQZ; simply replace the 'without' argument when running it with 'with' and the nominal SQZ Guardian states will be changed back to normal and the SQZ models will be removed from DIAG_SDF's exclude list.