aLIGO LHO Logbook

X1 SEI

fabrice.matichard@LIGO.ORG - posted 11:16, Thursday 01 July 2010 - last comment - 11:41, Thursday 01 July 2010(51)

new awg to man verion - Problems with get_data

1) Alex has installed the latest code last night to get the new version of awgtpman going. We hope this solves the drive issue we were having. I did several quick tests (1 mn long). Everything seemed to be working fine.

2) I have started longer measurements (6 loops of 12 mn each). And I have been having issues with get_data.

I have increased the number of attempts to 25. It helps but doesn't solve the issue. The run ends up to crash. I copied the error message below.


------------------------------------------------
WARNING: attempt #24 to get drive failed
  wait 3 sec and try again
Getting data from nds0:8088...
Data received!
 
WARNING: attempt #25 to get drive failed
  wait 3 sec and try again
 
ERROR: unable to get data for this drive segment after multiple tries!
  giving up
  the data FRD has the correct frequency vector, but
  The DATA and DATA QUALITY frds for this segment
  will all BE SET TO ZERO

Comments related to this report

fabrice.matichard@LIGO.ORG - 11:41, Thursday 01 July 2010 (53)

Link

It looks like we have been having two type of issues:

1- several attempts are sometimes necessary to get the data. That's what I was seeing during the quick tests.

2- The second issue is that the disk got full during the long test. Dave is fixing it.

We should be back to system identification shortly.