Compaq AA-RHGWB-TE manual Determining /dev/disk/dskn to Use for a Cluster Installation

•For member system 2 boot disk:

P00>>> set bootdef_dev \ dga132.1001.0.1.0,dga132.1002.0.2.0,\ dgb132.1001.0.1.0,dgb132.1002.0.2.0

POO>>> init

.

.

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______________________ Note _______________________

The console system reference manual (SRM) software guarantees that you can set the bootdef_dev console environment variable to a minimum of four device names. You may be able to set it to five, but four is all that is guaranteed.

6.9Determining /dev/disk/dskn to Use for a Cluster Installation

Before you can install the TruCluster Server software, you must determine which /dev/disk/dskn to use for the various TruCluster Server disks.

To determine the /dev/disk/dskn to use for the cluster disks, follow these steps:

1.With the Tru64 UNIX Version 5.0A operating system at single-user or multi-user mode, use the hardware manager (hwmgr) utility with the -view devices option to display all devices on the system. Use the grep utility to search for any items with the IDENTIFIER qualifier.

#hwmgr -view dev grep IDENTIFIER

HWID: Device Name Mfg ModelLocation

-----------------------------------------------------------------------

62: /dev/disk/dsk15c	DEC	HSG80	IDENTIFIER=133
63: /dev/disk/dsk16c	DEC	HSG80	IDENTIFIER=132
64: /dev/disk/dsk17c	DEC	HSG80	IDENTIFIER=131
65: /dev/disk/dsk18c	DEC	HSG80	IDENTIFIER=141
66: /dev/disk/dsk19c	DEC	HSG80	IDENTIFIER=142
67: /dev/disk/dsk20c	DEC	HSG80	IDENTIFIER=143
68: /dev/disk/dsk21c	DEC	HSG80	IDENTIFIER=144
____________________		Note	_____________________

If you know that you have set the UDID for a large number of disks, you can also grep for the UDID:

#hwmgr -view dev grep IDENTIFIER grep 131

If you have not set the UDID, you can use hwmgr to determine the /dev/disk/dskn name by using the hardware manager to display device attributes and searching for the storage unit worldwide name as follows:

Using Fibre Channel Storage 6–51