The persistent memory drive is read only

Symptom

A persistent memory drive marked as "read only" usually indicates that the underlying NVDIMM detected is not armed for backup during the boot process.

Solution 1
Cause
  • Previous backup operation failed.

  • The current restore operation failed.

  • A general arming error occurred.

  • An erase error occurred.

  • An NVDIMM controller error occurred.

Action
Check the IML for the cause of the failure or error. Perform the action recommended in the IML.
Solution 2
Cause

The persistent memory backup power requirements exceed the available backup battery power.

Action
Remove any hardware that was recently added to the compute module.
Solution 3
Cause

The backup energy source is not sufficiently charged and the charging process was skipped by the user.

Action
Reboot the system and wait for the backup energy source to sufficiently charge.
Solution 4
Cause

The backup energy source is not sufficiently charged and the charging process timed out.

Action
  1. Check the IML for additional backup power source-related messages and perform any recommended actions.
  2. If the issue still exists, replace the backup power source.

    For more information, see the compute module maintenance and service guide.