Reports until 08:21, Tuesday 03 March 2026
H1 CDS
david.barker@LIGO.ORG - posted 08:21, Tuesday 03 March 2026 - last comment - 08:28, Tuesday 03 March 2026(89329)
Guardian rebooted

WP13054 h1guardian1 reboot

Ryan S, Dave:

At 07:59 PST we rebooted h1guardian1. This was a maintenance reboot, it had been running for 74 days (since 19dec2025). No changes to the OS were made. 

18 nodes had been pending loading the modified ISC_library.py common file. Ryan had checked that none of these nodes were using the modified section of this file.

There were no problems with the reboot and restart of the 176 guardian nodes.

ALIGN_IFO       NOT LOADED  ISC_library.py  13:08 Tue 24feb2026    13:12 Fri 19dec2025
ALS_COMM        NOT LOADED  ISC_library.py  13:08 Tue 24feb2026    13:11 Fri 19dec2025
ALS_DIFF        NOT LOADED  ISC_library.py  13:08 Tue 24feb2026    13:11 Fri 19dec2025
ALS_XARM        NOT LOADED  ISC_library.py  13:08 Tue 24feb2026    13:12 Fri 19dec2025
ALS_YARM        NOT LOADED  ISC_library.py  13:08 Tue 24feb2026    13:11 Fri 19dec2025
CAMERA_SERVO    NOT LOADED  ISC_library.py  13:08 Tue 24feb2026    13:11 Fri 19dec2025
H1_MANAGER      NOT LOADED  ISC_library.py  13:08 Tue 24feb2026    13:34 Fri 19dec2025
INIT_ALIGN      NOT LOADED  ISC_library.py  13:08 Tue 24feb2026    13:11 Fri 19dec2025
ISC_DRMI        NOT LOADED  ISC_library.py  13:08 Tue 24feb2026    13:12 Fri 19dec2025
ISC_LOCK        NOT LOADED  ISC_library.py  13:08 Tue 24feb2026    13:12 Fri 19dec2025
LASER_PWR       NOT LOADED  ISC_library.py  13:08 Tue 24feb2026    13:11 Fri 19dec2025
OMC_LOCK        NOT LOADED  ISC_library.py  13:08 Tue 24feb2026    13:12 Fri 19dec2025
SEI_CONF        NOT LOADED  ISC_library.py  13:08 Tue 24feb2026    13:11 Fri 19dec2025
SEI_ENV         NOT LOADED  ISC_library.py  13:08 Tue 24feb2026    13:12 Fri 19dec2025
SQZ_FC          NOT LOADED  ISC_library.py  13:08 Tue 24feb2026    13:11 Fri 19dec2025
SQZ_MANAGER     NOT LOADED  ISC_library.py  13:08 Tue 24feb2026    09:21 Tue 23dec2025
TMS_SERVO       NOT LOADED  ISC_library.py  13:08 Tue 24feb2026    13:11 Fri 19dec2025
VIOLIN_DAMPING  NOT LOADED  ISC_library.py  13:08 Tue 24feb2026    13:11 Fri 19dec2025
 

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ryan.short@LIGO.ORG - 08:28, Tuesday 03 March 2026 (89334)
Link

After the reboot, there were a handfull of nodes I requested to different states:

  • IMC_LOCK -> OFFLINE
  • SEI_ENV -> MAINTENANCE
  • SEI_BS -> ISI_DAMPED_HEPI_OFFLINE
  • IFO_NOTIFY -> IDLE
  • PEM_MAG_INJ -> DOWN
  • SUS_CHARGE -> DOWN
  • All SUS nodes -> their requested state (this just "greens up" the nodes since they have no initial request, but the suspensions were all still in their correct mis/alignments)

All other nodes I left either to their initial requests or INIT, which is how they come up by default.