HP StorageWorks Auto Path for AIX, v04.02 - Installation Guide (B7949-96005)

12 HP StorageWorks Auto Path for AIX: Installation Guide
Installation
Installing Auto Path in AIX environments
Before beginning installation, configure the AIX environment for Auto Path
support and observe the following requirements.
■ A license key is required before installation.
■ After DLM devices have been created, use only dlm commands for these
devices. Do not use standard operating system commands. For example, use
/usr/DynamicLinkManager/bin/dlmmkvg instead of /usr/sbin/mkvg.
■ After a volume group is created on a DLM device, do not reference the
underlying hdisk (as displayed with the lsdev command).
■ Persistent reservation must be disabled when using Auto Path with a CASA.
All paths to the same LUN must have the same type of HBA with identical
firmware.
Caution: If you combine different types of HBAs, HDLM may not be able to
switch the path when an error occurs.
■ The HDLM software cannot be used to manage the boot disk.
■ Uninstall any previous version of Auto Path before installing the HDLM
software.
Recommendation Use the same type of fibre switch for all paths.
System prerequisites for using the HDLM software
HP supports the following operating system environments:
■ AIX 4.3.3 with a maintenance level of 09 or later; patch IY37841
■ AIX 5.1 with a maintenance level of 02 or later; patches IY37437 and
IY43734
■ AIX 5.2 with patches IY39860 and IY44133
Use IBM FC6227 or FC6228 HBAs with current firmware installed.
Related
information
See the HDLM documentation for other user information.