| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
13104
|
Mon Jul 10 11:20:20 2017 |
gautam | Update | General | All FEs down | I am unable to get FB to reboot to a working
state. A hard reboot throws it into a loop
of "Media Test Failure. Check Cable". |
|
|
13106
|
Mon Jul 10 17:46:26 2017 |
gautam | Update | General | All FEs down | A bit more digging on the diagnostics page
of the RAID array reveals that the two power
supplies actually failed on |
|
|
13107
|
Mon Jul 10 19:15:21 2017 |
gautam | Update | General | All FEs down | The
Jetstor RAID array is back in its nominal |
|
|
13108
|
Mon Jul 10 21:03:48 2017 |
jamie | Update | General | All FEs down |
|
|
|
13110
|
Mon Jul 10 22:07:35 2017 |
Koji | Update | General | All FEs down | I think this is the boot disk failure.
I put the spare 2.5 inch disk into the slot
#1. The OK indicator of the disk became solid |
|
|
13111
|
Tue Jul 11 15:03:55 2017 |
gautam | Update | General | All FEs down | Jamie suggested verifying that the problem
is indeed with the disk and not with the
controller, so I tried switching the original |
|
|
13112
|
Tue Jul 11 15:12:57 2017 |
Koji | Update | General | All FEs down | If we have a SATA/USB adapter, we can test
if the disk is still responding or not. If
it is still responding, can we probably salvage |
|
|
13113
|
Wed Jul 12 10:21:07 2017 |
gautam | Update | General | All FEs down | Seems like the connector on this particular
disk is of the SAS
variety (and not SATA). I'll ask |
|
|
13114
|
Wed Jul 12 14:46:09 2017 |
gautam | Update | General | All FEs down | I couldn't find an external docking
setup for this SAS disk, seems
like we need an actual controller in order |
|
|
13115
|
Wed Jul 12 14:52:32 2017 |
jamie | Update | General | All FEs down | I just want to mention that the situation
is actually much more dire than we originally
thought. The diskless NFS root filesystem |
|
|
13117
|
Fri Jul 14 17:47:03 2017 |
gautam | Update | General | Disks from LLO have arrived | [jamie, gautam]
Today
morning, the disks from LLO arrived. Jamie
and I have been trying to get things back |
|
|
13124
|
Wed Jul 19 00:59:47 2017 |
gautam | Update | General | FINESSE model of DRMI (no arms) | Summary:
I've
been working on improving the 40m FINESSE
model I set up sometime last year (where |
|
|
13148
|
Fri Jul 28 16:47:16 2017 |
gautam | Update | General | PSL StripTool flatlined | About 3.5 hours ago, all the PSL wall StripTool
traces "flatlined", as happens
when we had the EPICS freezes in the past |
|
|
13150
|
Sat Jul 29 14:05:19 2017 |
gautam | Update | General | PSL StripTool flatlined | The PMC was unlocked when I came in ~10mins
ago. The wall StripTool traces suggest it
has been this way for > 8hours. I was |
|
|
13151
|
Sat Jul 29 16:24:55 2017 |
jamie | Update | General | PSL StripTool flatlined |
|
|
|
13167
|
Fri Aug 4 18:25:15 2017 |
gautam | Update | General | Bilinear noise coupling | [Nikhil, gautam]
|
|
|
13169
|
Mon Aug 7 16:00:41 2017 |
rana | Update | General | Bilinear noise coupling | These are not the angular test
parameters that we're looking for:
recall that what we want |
|
|
13170
|
Mon Aug 7 22:50:57 2017 |
Koji | Update | General | New wifi router for the GC network installed | I have replaced the old 11n wifi router
(CISCO / Linksys) for the GC network with
a new one with 11ac technology. |
|
|
13181
|
Thu Aug 10 09:10:55 2017 |
steve | Update | General | dataviewer is recovering | It can look back 7 days trends now. There
is still no vacuum channels. I can bring
back the channels through the restore directory, |
|
|
13208
|
Tue Aug 15 08:22:16 2017 |
Steve | Update | General | projector light bulb replaced | BL-FS300C-PH-LE was
replaced after 2,904 hrs It did
not explode this time. The 4 monts |
|
|
13221
|
Wed Aug 16 20:01:03 2017 |
gautam | Update | General | SUS model ASC input weirdness | I'm not sure if this has something
to do with the model restarts / new RCG,
but while I was re-enabling the MC watchdogs, |
|
|
13228
|
Fri Aug 18 21:58:35 2017 |
gautam | Update | General | SUS model ASC input weirdness | I spent some time today trying to debug
this issue.
Jamie |
|
|
13235
|
Mon Aug 21 20:11:25 2017 |
johannes | Summary | General | Loss measurements plan | There are three methods we (will soon)
have available to evaluate the round-trip
dissipative losses in the arms that do not |
|
|
13236
|
Mon Aug 21 21:26:41 2017 |
gautam | Summary | General | Loss measurements plan | In case you want to use it, I had profiled
the Lightwave NPRO sometime back, and
we were even using it as the AUX X laser |
|
|
13241
|
Tue Aug 22 16:56:54 2017 |
johannes | Summary | General | AS laser existing components inventory | I surveyed the lab today to see what we
may need to buy for the AS laser setup.
We |
|
|
13253
|
Fri Aug 25 11:11:26 2017 |
gautam | Update | General | MC1 kicked again | Looks like MC1 got another big kick just
under 4 hours ago. None of the other optics
show any evidence of a glitch so it seems |
|
|
13275
|
Wed Aug 30 15:00:06 2017 |
gautam | Update | General | Edgeswitch fiber swap | A couple of minutes ago, Larry W swapped
the fibers to our 40m Edgeswitch (BROCADE
FWS 648G) to a faster connection. This is |
|
|
13283
|
Thu Aug 31 21:40:24 2017 |
gautam | Update | General | MC1 kicked again | There was a pretty large glitch in MC1
about an hour ago. The misalignment was so
large that the autolocker wasn't able |
|
|
13305
|
Mon Sep 11 09:47:53 2017 |
Steve | Update | General | WIMA caps refilled | Instock WIMA caps refilled to a minimum
50 pieces each. |
|
|
13308
|
Mon Sep 11 15:58:02 2017 |
Steve | Update | General | NPRO for repair | This NPRO has a tripping power output******
|
|
|
13393
|
Wed Oct 18 19:17:42 2017 |
gautam | Update | General | PRC angular feedforward | Last night, I collected ~30mins of data
for the vertex seismometer channels and the
POP QPD PIT/YAW signals with the PRMI locked |
|
|
13418
|
Wed Nov 8 14:28:35 2017 |
gautam | Update | General | MC1 glitches return | There hasn't been a big glitch that
misaligns MC1 by so much that the autolocker
can't lock for at least 3 months, seems |
|
|
13460
|
Fri Dec 1 17:09:29 2017 |
Udit Khandelwal | Summary | General | | Current objectives and statuses:
CAD Model of 40m lab (facility,
chambers, invacuum components etc)
Status: |
|
|
13472
|
Wed Dec 13 17:46:08 2017 |
Udit Khandelwal | Summary | General | Summary of Current Tasks | 40m
Lab CAD
1. 40m_bldg.dwg has 2D drawing |
|
|
13475
|
Thu Dec 14 08:59:17 2017 |
Steve | Update | General | we are here | |
|
|
13489
|
Wed Dec 20 00:43:58 2017 |
Kevin | Summary | General | DAC noise contribution to squeezing noise budget | Gautam and I looked into the DAC noise
contribution to the noise budget for homodyne
detection at the 40m. DAC noise is currently |
|
|
13490
|
Thu Dec 21 19:25:48 2017 |
Kevin | Summary | General | DAC noise contribution to squeezing noise budget | Gautam and I redid our calculations, and
the updated plot of squeezing as a function
of DAC current noise per coil is shown in |
|
|
13491
|
Fri Dec 22 09:40:19 2017 |
rana | Summary | General | DAC noise contribution to squeezing noise budget |
Should not count the ITMs. On those
we can use big resistors / filters to cut
out the noise.
For the initial |
|
|
13492
|
Tue Dec 26 17:24:24 2017 |
Steve | Update | General | power outage | There was a power outage.
The IFO pressure is 12.8 mTorr-it
and it is not pumped. V1 is still closed. |
|
|
13493
|
Thu Dec 28 17:22:02 2017 |
gautam | Update | General | power outage - CDS recovery |
I had to manually reboot c1lsc,
c1sus and c1ioo.
I edited the
line in /etc/rt.sh (specifically, on FB /diskless/root.jessie/etc/rt.sh) |
|
|
13499
|
Wed Jan 3 15:13:55 2018 |
Steve | Update | General | projector light bulb replaced | Bulb
is replaced.
|
|
|
13503
|
Thu Jan 4 14:39:50 2018 |
gautam | Update | General | power outage - timing error | As mentioned in my previous elog, the CDS
overview screen "DC" indicators
are all RED (everything else is green). Opening |
|
|
13506
|
Fri Jan 5 21:54:28 2018 |
rana | Update | General | power outage - timing error | Rolf came here in the morning, but not
sure what he did or if Jamie remotely did
something. But the screen is green. |
|
|
13507
|
Fri Jan 5 22:19:53 2018 |
gautam | Update | General | power outage - timing error | Just putting the relevant line from email
from Rolf which at least identifies the problem
here: |
|
|
13510
|
Sat Jan 6 18:27:37 2018 |
gautam | Update | General | power outage - IFO recovery | Mostly back to nominal operating conditions
now.
EX TransMon QPD is not |
|
|
13541
|
Fri Jan 12 18:08:55 2018 |
gautam | Update | General | pip installed on nodus | After much googling, I figured out how
to install pip on SL7:
|
|
|
13544
|
Fri Jan 12 20:35:34 2018 |
Udit Khandelwal | Summary | General | 2018/01/12 Summary |
40m Lab CAD
Worked |
|
|
13555
|
Wed Jan 17 23:36:12 2018 |
johannes | Configuration | General | AS port laser injection | Status of the AS-port auxiliary laser injection
Auxiliary laser with AOM
setup exists, first order diffracted beam |
|
|
13560
|
Fri Jan 19 15:22:19 2018 |
Udit Khandelwal | Summary | General | 40m CAD update 2018/01/19 | 40m CAD Project
All parts will be now named
according to the numbering system in this |
|
|
13561
|
Fri Jan 19 20:59:07 2018 |
Udit Khandelwal | Update | General | Solidworks Rendering | Rendered the SOS assembly (D960001) with
correct materials and all and it looks very
nice. Will extend this to the building cad |
|