J. Batch, J. Kissel

Last night, I'd attempted to add

H2:SUS-FMY_M2_WIT_L_DQ
H2:SUS-FMY_M2_WIT_P_DQ
H2:SUS-FMY_M2_WIT_Y_DQ

to the stored frame builder channels, at 2048Hz, and managed to crash the front end in doing so.

My exact steps where
(1) Uncomment the above three channels (and each of their associated four lines below it),changed  acquire=1 and datarate=2048
(2) On the H2SUSFMY GDS_TP screen, I hit DAQ RELOAD, and the status changed to 0x2bad
(3) Waiting ~30 seconds (while I was trying to remember how to log into the frame builder), and the front end crashed.
(4) I could not log into the framebuilder, via the usual
telnet h2dc0 8087.

This morning, after consulting with Jim, he ran an inicheck on my edited .ini file, which gives it an OK.

controls@cdsws2:/opt/rtcds/lho/h2/chans/daq 0$ inicheck H2SUSFMY.ini
Opening input file H2SUSFMY.ini

Sample rate of system:                 16384
Longest channel name length used:         41
Total number of inactive channels:       463
Total number of active channels:         157
Total channels acquired:                 156
Total testpoints allowed:                  8
Total data rate:                     1515520

controls@cdsws2:/opt/rtcds/lho/h2/chans/daq 46$


We took the following steps to bring the computer back up:
(1) We could not log into the computer via ssh, so we moved over to the cdsimac0, and opened IPMI Viewer
   (a) On the desktop toolbar, select Apple > Recent Items > Recent Items > IPMIView20.jar
   (b) Select (double click) h2susb78
   (c) Login as controls
   (d) Select IPM Device Tab
   (e) Hit "Power Cycle"
   This, after a little bit of time, brought the front end back up with frame builder status 0x2000, as should have been originally
(2) Logged into (without problems) and restarted the frame builder 
   (a) 
       controls@cdsws2:/opt/rtcds/lho/h2/userapps/release 0$ telnet h2dc0 8087
       Trying 10.201.0.160...
       Connected to h2dc0.h2fe.ligo-wa.caltech.edu.
       Escape character is '^]'.
       daqd> shutdown
       ....
       controls@cdsws2:/opt/rtcds/lho/h2/userapps/release 0$
       
   This brought the framebuilder back up, and restored the status to 0x0
(3) Burt restored h2susfmy
   (a) controls@cdsws2:/opt/rtcds/lho/h2/userapps/release/sus/h2/burtfiles 46$ burtgooey &
   (b) Restore > Snapshot Files > Double Click h2susfmy_m1transferfunctions.snap > OK > Cancel
   (c) Restore   
(4) Look through filter banks to ensure filter coefficients have been restore / loaded properly
(5) Reset the watchdog.

Finally, now that the system is back up, I've 
(a) Confirmed the channels are visibe in dataviewer, and
(b) Taken a quick DTT spectra in the present and in the past to be sure that they're (a) visible, (b) usable, and (c) stored.