Managing RAID on Linux

Name

mdadm

Synopsis

mdadm [mode] mddevice [options] memberdevices

mdadm has several modes of operation: Create, Build, Assemble, and Monitor. Each of these modes has its own command-line switch. In addition to these modes, there are many management features that operate independently. These standalone features are grouped into Manage or Miscellaneous mode. Most mdadm options have a long and a short form, although a few options have only a long form, to safeguard against using them accidentally. You can use whichever form you prefer.

General options for mdadm

-h, --help

Displays general help for mdadm. The --help option can also be combined with other options to display topic-specific help (for example, mdadm --create -help).

-V, --version

Displays the mdadm version.

-v, --verbose

Increases verbosity. This option can be combined with other options to increase the amount of information that mdadm displays.