I removed the following two channels from conlog:

H1:ALS-Y_LASER_HEAD_CRYSTALFREQUENCY
H1:ALS-Y_LASER_HEAD_CRYSTALTEMPERATURE

These are constantly servo-ed by a script and are changing around 357,988 times an hour.

To remove these I added them to '/ligo/lho/data/conlog/h1/input_pv_list/exclude.txt'. I then ran '/ligo/lho/data/conlog/h1/input_pv_list/create_pv_list.bsh'. This was a mistake, because there were also changes to the autoBurt.req files that I did not want to incorporate until tomorrow (Tuesday maintenance). So instead of updating conlog with the pv list made by this script, I told it to subtract the channels in '/ligo/lho/data/conlog/h1/input_pv_list/exclude.txt'.

I then had it write the list of monitored channels to '/ligo/lho/data/conlog/h1/output_pv_list/monitored_pv_list_2014apr21-11_06.txt'.

There are currently:
122,672 total channels
116,438 monitored channels
6,234 unmonitored channels