ndctl:tldr:c06ee

The ndctl list -vvv --namespace=${namespaceX-Y} command is used to retrieve detailed information about the specified namespace on an ndctl-compatible device. Let's break down the components of this command:

• ndctl: It is the command-line interface for managing device-level non-volatile memory resources (such as Intel Optane DC Persistent Memory) in Linux.
• list: It is a sub-command of ndctl used to list information about the available namespaces.
• -vvv: This option stands for "very, very verbose" and enables maximum verbosity level, providing extensive details about the namespace configuration.
• --namespace=${namespaceX-Y}: This option specifies the namespace whose details are to be listed. ${namespaceX-Y} should be replaced with the actual namespace identifier you want to query. It typically follows a numbering convention like namespace0-1, namespace0-2, and so on.

By executing this command, the system will provide a comprehensive display of information regarding the specified namespace, including its identifier, size, media type, block size, mode, power state, etc.