Data Domain: File System (DDFS) is disabled due to a critical condition on the platform

Summary: This KB describe behavior of DDFS disabled due to platform critical condition.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
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Symptoms

When the Data Domain platform detects a critical condition, a safeguard disables the file system (DDFS) as a precaution.
  • Event posted: p0-12 EVT-ENVIRONMENT-00052: File system is disabled due to a critical condition.EVT-OBJ::Enclosure=1 EVT-INFO::Cause=XXXXX
Some of the typical causes of such critical conditions on platform are namely:
  • Alert: EVT-ENVIRONMENT-00032: The storage processor has failed
  • Alert: EVT-ENVIRONMENT-00036: The current temperature exceeds the warning threshold
  • System time backwards jump

Cause

It is by design that DDFS be automatically disabled when the system platform detects any of a set of critical conditions.

In the DD, the "messages.engineering" log (which can be viewed through "log view debug/messages.engineering" from the CLI) indicates "platmon" process disables the DDFS due to the fatal error in platform, for example: 
May 11 20:55:46 dd01 cpe: DEBUG: epe_process_event: Received event: PS_ENVIRONMENT_00032 May 11 20:55:46 dd01 cpe: NOTICE: evaluate_symbol_node: taking action(s) on system_unstable(TRUE)
May 11 20:55:46 dd01 cpe: NOTICE: post_event: Publishing pubsub event PS_HA_SYSTEM_STATUS
May 11 20:55:46 dd01 platmon: INFO: Added indict SP May 11 20:55:46 dd01 platmon: INFO: STAT AddPersistentIndictment INFO: SP
May 11 20:55:46 dd01 platmon: ERROR: Fatal error in platform monitor, DDFS shall be disabled

Resolution

A particular such platform error is explained in more detail here: Data Domain: The Data Domain File System (DDFS) may be disabled if there is a backwards jump in system time configured on the system

For other possible reasons for the platform errors and the DDFS process being disabled as a result, read on, and contact DELL Data Domain Support as needed.

1. Firstly step should be taken to check the cause of the platform critical error and fix it. Check the mentioned "messages.engineering" log and list the system alerts (alerts show current) for any details.

2. After the platform error is fixed, clear the active EVT-ENVIRONMENT-00052 alert and also clear the "indict" as explained below from SE mode :

NOTE: SE commands have been deprecated in DDOS versions 7.7.5.25, 7.10.1.15, 7.13.0.15, 6.2.1.110 and above and are accessible only by Dell employees. 

# alerts show current # alerts clear alert-id <alert-id-list>
# se indict list
# se indict remove <id>
  3. Finally, enable file system again: 
# filesys enable

Affected Products

Data Domain

Products

Data Domain
Article Properties
Article Number: 000082378
Article Type: Solution
Last Modified: 11 Dec 2023
Version:  3
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