Readme: 3PAR Multipath I/O 2.2 for IBM AIX (June 2013)

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320-1405-03 3PAR MPIO for IBM AIX November 2007
• max_transfer 0x40000 Maximum transfer size in bytes that can be transferred to
the device in one operation. The default is 256K
(0x40000).
To change these attributes, select MPIO Device Management > Change/Show MPIO Device
Characteristics. Select the Device Name by pressing F4. Change the attribute(s) value and then
click Enter.
The followings are sample SMIT actions:
SMIT Action Steps
Enable path
1. Execute
smit mpio.
2. Select MPIO Path Management > Enable Paths > Enable Selected or
All Paths.
3. Press Enter.
NOTE: If a path is in the “Missing” or “Defined” state, that path cannot
be enabled and must be defined and configured before it can be
used. For example, if a cable is unplugged or failed on a
configured path and the host is rebooted, the path will become
“Missing” after the reboot. In order to define and configure a
“Missing” path, the root cause must be resolved first; in this case,
the unplugged or failed cable. For additional information on path
configuration, see the examples provided in the Host Boot from an
InServ Storage Server section on page 3.
Change device
algorithm
1. Execute
smit mpio.
2. Select MPIO Device Management > Change/Show MPIO Device
Characteristics.
3. Select the Device Name by pressing F4.
4. Move the cursor to the Algorithm attribute.
5. Press F4 to select preferred algorithm.
6. Press Enter.