The HASH_INT channel was updated at 16:00 and its new value was accepted into CDS SDF. These two channels were removed from h1calcs SDF by hand editing the snap file.

As a test that the cal_hash_ioc restores it values on startup, we restarted it at 16:30. CDS SDF didn't notice it had gone, the EDC connected channel counter dropped by 5 for about 15 seconds.