When disabling an persistent memory device (nmem), a notice is displayed indicating it is active, eg:
# ndctl disable-dimm nmem0 nmem0 is active, skipping... disabled 0 nmem
The message indicates there’s at least one active/enabled Region and/or Namespace using the NVDIMM.
All active/enabled Regions and Namespaces must be destroyed an/or disabled prior to disabling the dimm.
# ndctl list -NRD
// Check for mounted file systems using the pmem devices # df -h // Check for any running processes that are currently accessing the namespaces # fuser /dev/pmem0
# ndctl destroy-namespace namespace0.0
# ndctl disable-region region0
# ndctl disable-dimm nmem0
DisclaimerCopyright© kb.pmem.io 2020. All rights reserved.
Copyright© kb.pmem.io 2020. All rights reserved.