Compaq AA-RHGWB-TE manual Setting the Device Unit Number, File System

that at this point, even though the table is filled in, we do not yet know the device names or dskn numbers.

Table 6–2: Converting Storageset Unit Numbers to Disk Names

File System	HSG80	Worldwide Name	User	Device Name	dskn
or Disk	Unit		Define
			Identifier
			(UDID)
Member 1 boot	D131	6000-1FE1-0000-0D60- 131		dga131.1001.0.1.0 dsk17
disk		0009-8080-0434-002F
Member2 boot	D132	6000-1FE1-0000-0D60- 132		dga132.1001.0.1.0 dsk16
disk		0009-8080-0434-0030
Tru64 UNIX	D133	6000-1FE1-0000-0D60- 133		dga133.1001.0.1.0 dsk15
disk		0009-8080-0434-002E
Quorum disk	D141	6000-1FE1-0000-0D60- 141		N/Aa	dsk21
		0009-8080-0434-0029
Cluster root (/)	D142	6000-1FE1-0000-0D60- 142		N/Aa	dsk20
		0009-8080-0434-002A
/usr	D143	6000-1FE1-0000-0D60- 143		N/Aa	dsk19
		0009-8080-0434-002B
/var	D144	6000-1FE1-0000-0D60- 144		N/Aa	dsk18
		0009-8080-0434-0028

aThese units are not assigned an alias for the device unit number by the WWID manager command, therefore, they do not get a device name and will not show up in a console show dev display.

6.6.2 Setting the Device Unit Number

Set the device unit number for the Fibre Channel disks to be used as the Tru64 UNIX Version 5.0A installation disk and cluster member boot disks. Setting the device unit number allows the installation scripts to recognize a Fibre Channel disk. You have to set the device unit number because the 64-bit worldwide name is too large to be used as the device unit number. When you set the device unit number, you set an alias for the device worldwide name.

You use the WWID manager (wwidmgr) to define a device unit number that is an alias for Fibre Channel devices. For instance, if DKA0 or DKA100 are part of the device name seen in a show dev display, 0 or 100 is the device unit number.

To set the device unit number for a Fibre Channel device, follow these steps:

1.Obtain the user define identifier (UDID) for the HSG80 storageset to be used as the Tru64 UNIX Version 5.0A installation disk or cluster member system boot disks. In the example in Table 6–2 the Tru64 UNIX

6–40Using Fibre Channel Storage