Displaying reports 80681-80700 of 80860.Go to page Start 4031 4032 4033 4034 4035 4036 4037 4038 4039 End
Reports until 14:31, Thursday 07 October 2010
H2 General
betsy.weaver@LIGO.ORG - posted 14:31, Thursday 07 October 2010 (199)
Q2 EE work
Syptoms before plugging in any OSEMs - medm actuation verified to be disabled.
OSEM signals strange in 3 of 12 signals (-4k, -31k, -19k, when should be zero).
Fault lights on 3 of 5 sat boxes.

2 of 2 yellow cables tested out ok.  Even unplugged, signals strange.

Powered bscteststand down from work station.  No go.
Powered it down at computer (button)
Powered down Expansion chassis.
Powered on chassis
Powered on bscteststand

Ran startup script

Richard poked around

Powered everything down again
Reseated ADC

More troubleshooting at the rack by Richard/Filberto...
Pulling 2 satellite boxes to take to the EE shop.
H2 General
james.batch@LIGO.ORG - posted 09:31, Wednesday 06 October 2010 - last comment - 18:26, Wednesday 06 October 2010(197)
Change ntp configuration files, sync time on seismic and suspension test stands
After a report form Vincent that the time had drifted enough to make awgstream unusable, I modified the configuration files on seiteststand and workstation for ntp.  

On seiteststand:
1. stop ntpd
2. modify settings in configuration file
3. sync time with ntp server
4. start ntpd

On workstation:
1. stop ntpd
2. Modify settings in configuration file to use seiteststand as time server
3. sync time with seiteststand
4. start ntpd

Checked bscteststand, suswork1, found the time had drifted on these as well.  Modified the configuration files on bscteststand and syswork1 similar to seiteststand, workstation.

Checked times, they are sync'ed again.  Will monitor this, seiteststand was stubborn about being able to connect to the ntp server although bscteststand had no problem.
Comments related to this report
james.batch@LIGO.ORG - 18:26, Wednesday 06 October 2010 (198)
After monitoring the clock performance on the workstation connected to seiteststand all day, I decided to set up a crontab (as root) to run 'ntpdate -b 10.11.0.24' with the output going to /var/log/ntpdate-cron.txt to see if this will keep better time.  Will revisit in the morning.
X1 SEI
hugh.radkins@LIGO.ORG - posted 16:59, Friday 01 October 2010 (196)
LHO HAM ISI Assembly #3 Nears Completion
See images for final positioning work.  Great job JimW EricA MitchR!

Testing will begin on Unit#3 after final instrumentation and cable routing.
Images attached to this report
X1 SUS
betsy.weaver@LIGO.ORG - posted 19:38, Thursday 30 September 2010 (195)
Metal LHO Q2 Hanging and Aligned
Last week we swapped QUADs out on the mechanical test stand.  This never being done before, it took a few days to work the kinks out of maneuvering 4 sections of QUADs simultaneously.  Currently, the Q1 upper structure is in it's case waiting for an N2 purge, while the lower structure is parked in the modified LSAT Top Plates on the "installation Genie".  It's case will not arrive for a few weeks yet.

Q2 was fully hung earlier in the week.  As of today, all 6 DOFs have been adjusted mechanically so we are installing the tablecloth and BOSEMs.  A final tweak to pitch will likely be needed during the OSEM installs over the next day or so.  (Note our alignment is to within a few mRad in pitch with the 5mm gap between chains set with a 5mm spacer.)  The chains are slightly misaligned laterally (side shift) with the barrel of the ReTM set <1mm off the barrel of the TM.  We could adjust this out at the expense of overall height of the Test Mass.  We opted to live with the slight side shift for now.

Q2 has one Top Stage Blade cartridge which is almost out of yaw range in one direction.  The screws are very difficult to adjust under normal circumstances, but one of the outer most blade clamp 3/8-16 is feeling very rough when loosening.  The yaw which is somewhat pinned is the motion of M0 in the counter-clockwise direction as viewed from above.
H2 General
jonathan.hanks@LIGO.ORG - posted 11:52, Monday 27 September 2010 - last comment - 08:11, Tuesday 28 September 2010(193)
aLOG system maintenance tomorrow (Tues 28 Sept 2010)
I will be applying some critical security patches to the aLOG system tomorrow around 8:00am.  The system will require a reboot.  Downtime is estimated to be on the order of 5-10 minutes.

Please remember to save any unfinished entries as a draft prior to 8am pacific tomorrow.
Comments related to this report
jonathan.hanks@LIGO.ORG - 08:11, Tuesday 28 September 2010 (194)
The system has been restarted.  The maintenance work is finished.
H2 General
james.batch@LIGO.ORG - posted 15:57, Friday 24 September 2010 (192)
Add workstation to BSC test stand
Added new Linux workstation to SUS Quad test stand.  It's name is suswork1.

When logged in as user controls, the home directory is the same one as on bscteststand.  You should be able to run programs on suswork1 the same as you would on bscteststand without having to ssh to bscteststand first.  Matlab is installed locally on suswork1.  Adobe Reader is installed, and firefox is set up with the aLIGO LHO Logbook as a bookmark.  Be sure to use your own name for logbook entries!

All /cvs/cds/llo files are visible on suswork1, as are all /apps/Linux files.

Details - 
mounted bscteststand:/cvs, /apps, /opt, and /home/controls to suswork1:/cvs, /apps, /export/opt, and /export/controls.
Made symbolic links from /export/opt to /opt for directories in /export/opt.  
Set up shared library default paths to the same as on bscteststand.
Installed or updated libraries to run gds tools.
Set up suswork1 to ntp sync time from bscteststand.  

Let me know when you find stuff that doesn't work.


X1 SUS
jeffrey.bartlett@LIGO.ORG - posted 13:43, Friday 24 September 2010 (191)
Beam Splitter Lower Structure
We have completed assembly of the first Beam Splitter Lower Structure. No fit, machining, or alignment issues were noted. The main Lower Structure drawing (D080005) calls for eight 1/4-20x0.5 SHCS. However, the EQ Stop Plate (D080008) and the LS-US Bracket (D080011), both require 1/4-20x.05 SHCS and therefore 16 of the 0.5” bolts are required.
Images attached to this report
X1 DTS
david.barker@LIGO.ORG - posted 09:41, Thursday 23 September 2010 (190)
reusing the X2200 in the DTS
Over the past two weeks we have repurposed the three X2200 units
for aligo auxillary system prototyping. From top to bottom the
X2200 are being used for:

top: 10.11.0.70, Cyrus network management tests
middle: 10.11.0.72, Patrick aconlog prototype
bottom: 10.11.0.71, Cyrus second net mgt machine
X1 SEI
jeffrey.garcia@LIGO.ORG - posted 08:01, Thursday 16 September 2010 (189)
Reboot of X1 SEi Test Stand
This morning I noticed some extra testpoints on the GDS Overview medm on the Test Stand even though I was not running measurements or had dataviewer open. I ran Dave B.'s 'system_check' script that checks to see if the processes are running correctly.  There were several errors with processes not running and so I decided to reboot the front end.  Afterwards, the test points cleared and the system_check came up clean.  The workstation linux machine was also running really slowly, so that machine was rebooted as well.
X1 SUS
jeffrey.bartlett@LIGO.ORG - posted 17:13, Wednesday 15 September 2010 (188)
BS Top Stage Cartridge Assembly
We have completed the assembly of the five Beam Splitter Top Stage cartridges, which are undergoing the 100-hour creak bake.  

Assembly Notes:
 
(1). We made the assembly jig out of four sections of aluminum box. For assembly, the end of the Base Plate is secured to the box sections via 1/4-20 SHCS into tapped holes. For blade pull down, the two end sections, bolted to the Base Plate, are dog clamped to the optics table. The remaining two box sections are slid under the Base Plate near the edge of the optics table to support the front half of the assembly. (See photos Assembly Jig and Clamp Down). 
     
(2). When installing Helicoils into the Blade Clamp Bottom ensure the two outer ones are run down to the bottom (the curved side) of the clamp. If not the 1/4-20x 1” mounting bolts will not engage the Helicoil.

(3). The Rotational Bushing can be a tight or loose fit in the Bottom Plate or Blade Clamp Base. If you have to tap or press to set the bushing, install a 1/4-20 SHCS into the bushing and push on the head of the SHCS. Tapping or pressing directly on the phosphors bronze will distort the bushing making it difficult to insert into the other part.
 
(4). If the mounting SHCS for the adjuster assembly do not line up with the slots cut into the Base Plate, loosen the 8-32 SHCS holding the two halves together to allow some free play. Once all five SHCS have been installed, the 8-32s can be tightened back down. This may cause some binding when trying to rotate the adjuster. 

(5). Use 20kg for the blade pull down weight. The assembly book calls for 50kg, which is too much.  
Images attached to this report
X1 SEI
jeffrey.garcia@LIGO.ORG - posted 19:38, Tuesday 14 September 2010 (187)
X1 Test Stand ADC replacement
The General Standards ADC adapter board was replaced today after some investigations by Richard, Hugh, Dave B. and others regarding the flat-lined channels seen this morning by Corey.  The previous General Standards ADC board had a Serial #080421-35.  The replacement board (same model) installed today has a Serial #091102-16.  The channels have been confirmed to be reading and outputting data through dataviewer. 
H2 DAQ
david.barker@LIGO.ORG - posted 15:41, Tuesday 14 September 2010 - last comment - 18:00, Tuesday 14 September 2010(185)
h1 daq raid ready for qfs
the SATABOY finally finished its RAID6 build at 15:00.
Dan noticed that the spare 2TB SATA drive was configured
as a global spare for the 64GB SSD drives as well! So 
we removed it from the global spare pool and added it to
the SATA RAID pool only.

I connected the Sun X4270 (frame writer) fibre channel
cards to the sataboy controllers. There are two FC cards
in the Sun and two controllers, so the connection is:

sun pci-e slot1 to controller 0 (left connector)
sun pci-e slot4 to controller 1 (left connector)

I've handed the system over the DCS for QFS install.

Dave, Greg, Dan
Comments related to this report
dan.moraru@LIGO.ORG - 18:00, Tuesday 14 September 2010 (186)
QFS is installed and configured with a 15.9TB (vs 16.3TB available) partition:

# mount LDAS/DCS filesystems
ln -s /net/dcs/export/ldcg_server/ldcg/opteron_sol10 /ldcg

# install QFS
lofiadm -a /net/dcs/export/mirror/sun/SAM-QFS-5.1/SUN_QFS_5.1.iso
mount -F hsfs -o ro /dev/lofi/1 /mnt
pkgadd -d /mnt/x64/2.10
#The following packages are available:
#  1  SUNWqfsr       Sun QFS Solaris 10 (root)
#                    (i386) 5.1.4,REV=5.10.2010.04.05
#  2  SUNWqfsu       Sun QFS Solaris 10 (usr)
#                    (i386) 5.1.4,REV=5.10.2010.04.05
#  3  SUNWsamfsr     Sun SAM and Sun SAM-QFS software Solaris 10 (root)
#                    (i386) 5.1.4,REV=5.10.2010.04.05
#  4  SUNWsamfsu     Sun SAM and Sun SAM-QFS software Solaris 10 (usr)
#                    (i386) 5.1.4,REV=5.10.2010.04.05
#
#Select package(s) you wish to process (or 'all' to process
#all packages). (default: all) [?,??,q]: 1,2
umount /mnt
lofiadm -d /dev/lofi/1

# add binaries and manpages to $PATH and $MANPATH
cat >> /etc/profile <<_EOF

# set global MANPATH
MANPATH=/usr/share/man
export MANPATH
_EOF
cat >> /.profile <<_EOF
PATH=/opt/SUNWsamfs/sbin:/opt/SUNWsamfs/bin:$PATH
MANPATH=/opt/SUNWsamfs/man:$MANPATH
export PATH MANPATH
_EOF

# disable all file system management
svcadm disable fsmgmt

# patch system
/ldcg/bin/patchreport -i

# update nfs/server svc manifest to enable proper QFS mounting and NFS sharing
svccfg export /network/nfs/server > /var/tmp/server.xml
# edit /var/tmp/server.xml
#      
#        
#      
#+     
#+       
#+     
#      
#        
#      
svccfg validate /var/tmp/server.xml
svcadm disable nfs/server
svccfg delete nfs/server
svccfg import /var/tmp/server.xml
svcadm enable nfs/server

# format disks, relabeling all with EFI labels
#
# initial dtsfw0 configuration:
#       0. c0t0d0 
#          /pci@0,0/pci8086,340c@5/pci1000,3150@0/sd@0,0
#       1. c4t6000402002F45FC666750C9500000000d0 
#          /scsi_vhci/disk@g6000402002f45fc666750c9500000000
#       2. c4t6000402002F45FC666750C9600000000d0 
#          /scsi_vhci/disk@g6000402002f45fc666750c9600000000
#
#
# final dtsfw0 configuration:
#       0. c0t0d0 
#          /pci@0,0/pci8086,340c@5/pci1000,3150@0/sd@0,0
#       1. c4t6000402002F45FC666750C9500000000d0 
#          /scsi_vhci/disk@g6000402002f45fc666750c9500000000
#       2. c4t6000402002F45FC666750C9600000000d0 
#          /scsi_vhci/disk@g6000402002f45fc666750c9600000000
#
# label type may be determined using prtvtoc
# SMI labels list the number of accessible cylinders
# EFI labels list the number of accessible sectors

# create /etc/opt/SUNWsamfs/mcf
#
# daq-h2-frames 300 ma daq-h2-frames -
# /dev/dsk/c4t6000402002F45FC666750C9600000000d0s0 301 mm daq-h2-frames -
# /dev/dsk/c4t6000402002F45FC666750C9500000000d0s0 302 mr daq-h2-frames -
# partitions must be less than 16TB

sammkfs -a 1152 daq-h2-frames
# from sammkfs manpage:
#     Data alignment refers to matching the allocation unit of the
#     RAID controller with the allocation_unit of the file system.
#     A mismatched alignment causes a read-modify-write operation
#     for I/O that is less than the block size.  The optimal
#     alignment formula is as follows:
#
#     allocation_unit = RAID_stripe_width * number_of_data_disks
#
#     For example, if a RAID-5 unit has a total of 8 disks with 1
#     of the 8 being the parity disk, the number of data disks is
#     7.  If the RAID stripe width is 64 kilobytes, then the
#     optimal allocation_unit is 64 * 7 = 448.

# add following to /etc/vfstab
#daq-h2-frames           -       /daq-h2-frames  samfs   -       samfs   -

# create mount point and mount
mkdir /daq-h2-frames
mount /daq-h2-frames

df -h daq-h2-frames
#Filesystem             size   used  avail capacity  Mounted on
#daq-h2-frames           16T   1.1M    16T     1%    /daq-h2-frames
H2 General
corey.gray@LIGO.ORG - posted 07:57, Tuesday 14 September 2010 (184)
GS13 & Displacement Sensors With Zero Inputs
Last night, I was getting ready to run a measurement for Vincent, but before running I happened to check channels and noticed some channels were zero at their inputs.  I went to do a quick check of cable connections, and they looked connected at the Feedthru Interface.  Not knowing what else to try, I killed/rebooted/started the isi system:  everything came back including the zeroed channels. 

I've not seen this issue before.  Any ideas on what's wrong (I'm attaching a snapshot of the sensors as they were on DV).  Now I only looked at these sensors, and nothing else, so not sure if other channels have zeroes at their inputs.

Sidenote:  I tried killing scripts from the "isiham GDS CUST" medm window from the workstation in the Tech Lab, but it didn't work.  The medm screen didn't go WHITE, and my mouse eventually became froze within an medm screen (I wasn't able to do anything on this machine...so I had to power it off via the power button).
Images attached to this report
H2 DAQ
david.barker@LIGO.ORG - posted 18:21, Monday 13 September 2010 (183)
H2 DAQ SATA BOY Raid build started
The 2TB disk drives for the SataBoy raids were delivered
today. I installed the disks into the H2 DAQ system and
started a RAID6 install with one spare drive. Its looking
like the build will take about 40 hours.

The system has 14 disk slots, we have 12 2TB drives and 2
SSD 64GB drives. The SSDs are configured as a mirror raid
of size 64GB.

The 12 2TB drives are mounted as a RAID6 (9+2) plus a single
hot spare. This will give an 18TB disk system when it is built.
X1 SUS
david.barker@LIGO.ORG - posted 11:56, Friday 10 September 2010 (182)
more details on new code
Looking at the epics records, it appears the new system only adds
new records and does not change/delete any existing records. This
means burt restores of old backups will still work.

A new autoBurt.req was generated, so from now onwards the new channels
will also be backed up.

The old system had 1780 chans, the new has 3245 chans (addition of 1465 chans)

The new system as added the following filter modules:

< L1:QTS-Q1_M0_PITCH_TEST_GAIN
< L1:QTS-Q1_M0_ROLL_TEST_GAIN
< L1:QTS-Q1_M0_X_TEST_GAIN
< L1:QTS-Q1_M0_YAW_TEST_GAIN
< L1:QTS-Q1_M0_Y_TEST_GAIN
< L1:QTS-Q1_M0_Z_TEST_GAIN
< L1:QTS-Q1_R0_PITCH_TEST_GAIN
< L1:QTS-Q1_R0_ROLL_TEST_GAIN
< L1:QTS-Q1_R0_X_TEST_GAIN
< L1:QTS-Q1_R0_YAW_TEST_GAIN
< L1:QTS-Q1_R0_Y_TEST_GAIN
< L1:QTS-Q1_R0_Z_TEST_GAIN

which accounts for most of the new channels.
X1 SUS
david.barker@LIGO.ORG - posted 11:42, Friday 10 September 2010 (181)
New front end code loaded on SUS QUAD
Mark requested that I get the latest qts.mdl file from the LLO
quad test stand and compile it at LHO. I saved the current 
file as archive/qts.mdl.3nov2008 (this is the date it was created)
and copied the LLO file as qts.mdl (this file was created 4oct2009).

I did the standard make qts, make install-qts, make install-daq-qts
and make install-screens-qts with no problems.

I then copied the medm files up from LLO. So everything in
/cvs/cds/llo/medm/l1/qts is a copy (orig saved as l1/qts_lho)

The new overview screen is working, and the DOF buttons open sub-screens
(see attached image)
Images attached to this report
X1 SUS
betsy.weaver@LIGO.ORG - posted 13:17, Friday 03 September 2010 - last comment - 13:39, Friday 03 September 2010(178)
Reaction Chain TFs without filtering
This time with filtering off.  There appears to be some stiffness in the cabling which is likely causing the PITCH and Z Tf's to be a little funky looking.
Comments related to this report
betsy.weaver@LIGO.ORG - 13:36, Friday 03 September 2010 (179)
These were taken after the PenRe AOSEMs were installed, but with the cover off (for fear of cable dragging on the cover).  Air currents do not seem to be bothering us too much.  There is no other activity on the floor.
Non-image files attached to this comment
betsy.weaver@LIGO.ORG - 13:39, Friday 03 September 2010 (180)
Screen snapshot of RO DOF medm used during TF's posted today.
Images attached to this comment
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