FUJITSU Storage ETERNUS Multipath Driver V2 User’s Guide for Linux
Copyright 2014 FUJITSU LIMITED
P2U3-0031-15ENZ0
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Chapter 11
Command Reference
This chapter explains the commands that control the Multipath Driver functions.
The root-level user privilege is required to execute these commands.
11.1
"iompadm" Commands
Format
There are seven sub commands.
-
info: displays the multipath status
-
change: changes the status of a specified path to stop.
-
restart: returns the status of a specified path to active/standby.
-
rescan: installs added storage systems, paths (HBAs), or LUs.
-
del: uninstalls the specified HBA
-
help: displays simplified directions for the "iompadm" command.
-
version: displays the Multipath Driver version
While multiple "info" subcommands can be run at the same time, simultaneous execution of multiple
instances of the other subcommands is not allowed.
Also note that "iompadm" is mutually exclusive with the "mpdconfig" command.
Explanation
This command shows the path status and controls the paths (stops/restarts) in a multipath connection
controlled by the Multipath Driver.
Subcommands
This command shows the multipath status and recognized disks that are managed by the Multipath Driver
(even when the configuration is changed to a single path, the information of the disks that are managed
by the Multipath Driver is displayed.)
When a disk_device_node connected to the storage system managed by the Multipath Driver has been
specified, this subcommand displays the recognized disks and path status.
If a disk_device_node is not specified, information on all the connected disk_device_nodes is displayed.
Refer to the Output Format section for details of output information.
When specifying an "adapter" as the change_unit, the following format is available.
/opt/FJSVmpd/bin/iompadm <subcommand> [arg]
iompadm info [disk_device_node]
iompadm info [disk_device_node]
iompadm change adapter PCI_bus_number
