6.5. Administering the multipathd daemon

Procedure

• View the default format for the output of the multipathd show maps command:

  # multipathd show maps
  name sysfs uuid
  mpathc dm-0 360a98000324669436c2b45666c567942

• Some multipathd commands include a format option followed by a wildcard. Display a list of available wildcards with the following command:

  # multipathd show wildcards
  multipath format wildcards:
  %n  name
  %w  uuid
  %d  sysfs
  ...

• Display the multipath devices that multipathd is monitoring. Use wildcards to specify the shown fields:

  # multipathd show maps format "%n %w %d %s"
  name   uuid                              sysfs vend/prod/rev
  mpathc 360a98000324669436c2b45666c567942 dm-0  NETAPP,LUN

• Display the paths that multipathd is monitoring. Use wildcards to specify the shown fields:

  # multipathd show paths format "%n %w %d %s"
  target WWNN        uuid                              dev vend/prod/rev
  0x50001fe1500d2250 3600508b4001080520001e00011700000 sdb HP,HSV210

• Display data in a raw format:

  # multipathd show maps raw format "%n %w %d %s"
  mpathc 360a98000324669436c2b45666c567942 dm-0 NETAPP,LUN

  In raw format, no headers are printed and the fields are not padded to align the columns with the headers. This output can be more easily used for scripting.