6388 Power cycle cdsfs0

Jim, Dave, Ryan, Carlos:

cdsfs0 (NFS server for /ligo) was powered down, RAID controller card and cables inspected, and powered back up between 11:42 and 12:02 PDT. This is the first action in an investigation of recent periods of /ligo unavailability.

6383 outbuilding WAP disconnects

Carlos, Jim, Dave:

The WAP ethernet cables were disconnected from the local switch at all outbuildings (EX, EY, MX, MY). These switch ports were then reactivated, permitting future use of CDS WiFi if the cables were to reconnected to local switch port #12.

6382 MSR TCS Hartmann Wavefront Sensor

Nutsinee:

The problem of the ITMX HWS image being glitched by running the ITMY camera could not be reproduced. If this problem re-appears, we will install a second camera card in h1hwsmsr. For now, no further action will be taken.

looking at the logs on cdsfs0 over the past week, here are the number of times an error is reported which could have lead to /ligo being unavailable for a short period of time:

Wed Nov 30 04:43
Wed Nov 30 05:51
Wed Nov 30 18:37
Wed Nov 30 20:50
Fri Dec 2 04:40
Mon Dec 5 03:48
Mon Dec 5 14:52
Mon Dec 5 16:17
Mon Dec 5 17:32
Mon Dec 5 19:15
Tue Dec 6 10:42

   Maintenance activities are complete. 
   Reset Fiber Polarization on X-Arm. 
   Starting relocking.

After detecting failures on /Ligo, We power off CDSFS0, review all cable connections and verified that the controller card was plugged correctly on the board, after power back on we manually remounted and exported /Ligo. We also verified all workstations were connected again.

Richard, Patrick, Evan

We refocused the SRM digital camera (cam17) while watching IR flashes on the SRM. The camera aperture was also stopped down a bit.

I've unmonitored all elements of ASC DC5 input matrix for OBSERVE in a hope that this is somewhat useful for passive ASC sensing measurement.

Unmonitored channels are H1:ASC-INMATRIX_P_16_XX and H1:ASC-INMATRIX_Y_16_XX where XX is 1, 2, 3, ... 33.

DC5 is not used at LHO, output of DC5 filters are still monitored (attached), and as soon as the output is turned on we're kicked out of observing, so this has zero impact on the IFO performance.

WP 6383

Carlos, Jim

The wireless access points at EX and EY have been unplugged and the switch ports turned on.  To reactivate the WAP for CDS access, the red ethernet cable will need to be plugged in to the switch as outlined in the VEAsWirelessAccess page in the CDS Wiki.  

Please remember to disconnect it when done!

   Carlos reports the parking lot at End-Y is very icy. Please be careful.

  17:31 Lockloss due to maintenance activities

Ops Shift Log: 12/06/2016, Day Shift 16:00 – 00:00 (08:00 - 16:00) Time -  UTC (PT)
State of H1: IFO locked at NOMINAL_LOW_NOISE, 27.9W, 62.1MPc
Intent Bit: Observing
Wind: Is ranging from a Light to Moderate Breeze (7-14mph), with Light snow
0.03 – 0.1Hz: Currently between 0.09 – 0.03um/s  
0.1 – 0.3Hz:  Currently at 0.8um/s
Outgoing Operator: TJ

TITLE: 12/06 Owl Shift: 08:00-16:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 59.5354Mpc
INCOMING OPERATOR: Jeff
SHIFT SUMMARY: Aside from one lockloss that I can't explain, we have been locked the whole shift. The range fell starting around 12:30 and has come up a bit, but not fully. I have ran the DARM_a2l_passive.xml every once in a while and it came out with different results almost every time. So I wasn't sure if I should run it in the beginning of the shift, but I ran it after LLO dropped out and the range wasn't recovering. Not sure if it helped.

TCSY chiller flow has been an issue throughout the night, but seems to get stable for a few hours at a time.
LOG:

• 08:26 TCSY Chiller flow low alarm
• 10:06 Lockloss
• 10:36 Observing*
• 15:02 Out of Observing to run a2l hoping it might help with the range.
• 15:10 Observing*
• 15:22 Brief CP4 alarm

*All Observing times are with ion pump near BSC8 running.

Observing with a 3.5hr lock. Range has taken a dip that seems to be coincident with the Hanford traffic again, but is on its way back up. LLO is also Observing after a long night of close tries.

Be care for those driving in, the roads are icy.

Not sure of the cause yet, everything seemed all good and normal. Running lockloss plots now though and I'll update if I find anything.

Lockloss due to PSL tripping off.  Currently on the phone with Jason working to remotely restart if possible.  Will update as I know more.

PT170 and PT180 were installed in March 2016 when the X/Y beam manifold volumes were vented. PT140 was installed in Sept. 2016. Attached is trend from time of installation. Looks like PT170 & PT180 have been drifting up since after closing and re-opening isolation GVs 5/7 for HAM6 vent. We burped in accumulated gas from gate annuli but I'm not sure what the second hump is from April 9th. No log entry found.