IBM DS3500 - Page 677

Chapter 21. AIX 6.1 configuration guide 653
Draft Document for Review March 28, 2011 12:24 pm AIX.fm
host adapter locations. See the service manual for your system type to identify device
locations.
Example 21-12 Disk status and location codes
# lsdev |grep -i mpio
hdisk2 Available 03-09-01 MPIO Other FC SCSI Disk Drive
The mpio_get_config command must be used to see all the available paths to the logical drive
as shown in Example 21-13. This command displays the following information about the
hdisks that are associated with the subsystem.
򐂰 hdisk name
򐂰 LUN number
򐂰 current ownership
򐂰 preferred path
򐂰 user-assigned label for the volume
Example 21-13 mpio_get_config output
# mpio_get_config -Av
Frame id 0:
Storage Subsystem worldwide name: 608e5001bc9000004c5b683c
Controller count: 2
Partition count: 1
Partition 0:
Storage Subsystem Name = 'DS3524-FC'
hdisk LUN # Ownership User Label
hdisk2 0 A (preferred) aix1fc
The other command to list the available paths is lspath. This command displays one of three
types of information about paths to an MPIO capable device. It either displays the operational
status for one or more paths to a single device, or it displays one or more attributes for a
single path to a single MPIO capable device.
By default, this command will display the information in columnar form. When no flags are
specified that qualify the paths to display, the three columns are status, device and parent as
shown in Example 21-14. This example shows the output for a dual controller DS3500
storage subsystem with a dual controller host configuration with one LUN attached. Besides,
it show that the paths to the SAS1 hard disk is in missing state.
Example 21-14 lspath command output
# lspath
Enabled hdisk0 sas0
Enabled hdisk1 sas0
Note: This command is not available in the Virtual I/O Server IOS. In order to use the
command it is necessary to run the oem_setup_env command first to start a root AIX shell.
Afterwards, the mpio_get_config -Av command will be available to use it.
Important: To protect the configuration database, do not interrupt the mpio_get_config
command. Stopping the command before it is complete can result in a corrupted database.