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Why ses.status.psWarning and psError are not reported if PSU in external shelf get powerred off more than once within a short time

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Applies to

FAS2750

Answer

  • When one PSU located in external shelf get powerred off for the first time, below EMS event are expected to see in both nodes:

Thu Aug 18 13:28:59 +0900 [Nodename: dsa_worker2: ses.status.psWarning:error]: DS224-12 (S/N SHFNCxxxx000xxx) shelf 1 on channel 0a power warning for Power supply 1: warning status; DC undervoltage. This module is on the rear of the shelf at the bottom left.
Thu Aug 18 13:29:26 +0900 [Nodename: dsa_worker2: ses.status.psError:alert]: DS224-12 (S/N SHFNCxxxx000xxx) shelf 1 on channel 0a power error for Power supply 1: critical status; AC Fail. This module is on the rear of the shelf at the bottom left.
Thu Aug 18 13:29:26 +0900 [Nodename: dsa_worker2: callhome.shlf.power.intr:error]: Call home for SHELF POWER INTERRUPTED
Thu Aug 18 13:29:35 +0900 [Nodename: statd: monitor.shelf.fault:alert]: Critical fault reported on disk storage shelf attached to channel 0a. Check fans, power supplies, disks, and temperature sensors.
Thu Aug 18 13:29:35 +0900 [Nodename: statd: callhome.shlf.fault:error]: Call home for SHELF_FAULT

  • If same PSU get powerred off within 6 hours, ses.status.psWarning and ses.status.psError will be suppressed:

Thu Aug 18 13:43:26 +0900 [Nodename: dsa_worker2: callhome.shlf.power.intr:error]: Call home for SHELF POWER INTERRUPTED
Thu Aug 18 13:43:35 +0900 [Nodename: statd: monitor.shelf.fault:alert]: Critical fault reported on disk storage shelf attached to channel 0a. Check fans, power supplies, disks, and temperature sensors.
Thu Aug 18 13:43:35 +0900 [Nodename: statd: callhome.shlf.fault:error]: Call home for SHELF_FAULT

  • It is an expected behavior for external shelf, same warning message from same alerting resource are inhibited within 6 hours.

Additional Information

  • PSU status can be confirmed via system node run -node * -command environment status
  • With PSU located in internal shelf(chassis) failed, those two EMS events will never be supressed.

 

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