Creating The Physical Volumes; Device Information Example - HP StorageWorks XP24000 Configuration Manual

# cd /dev/dsk
# mknod /dev/dsk/c2t6d0 b 31 0x026000
File name, b=block-type,
31=major #, 0x026000= minor #
# cd /dev/rdsk
# mknod /dev/rdsk/c2t6d0 c 188 0x026000 Create character-type file.
File name, c=character-type,
177=major #, 0x026000=minor #
:
#
The character-type device file is required for volumes used as raw devices (for example,
3390-3A/B/C). The block-type device file is not required for volumes used as raw devices.
If you need to delete a device file, use the rm –i command.
Table 6 Device information example
Bus Inst
8/12 02
8/12 02
8/12 02

Creating the physical volumes

A physical volume must be created for each new SCSI disk device.
To create the physical volumes:
1.
Use the pvcreate command to create the physical volumes with the character-type device file
as the argument. Specify the /dev/rdsk directory.
Example
# pvcreate /dev/rdsk/c6t0d0
Physical volume "/dev/rdsk/c6t0d0" has been successfully created.
:
# pvcreate /dev/rdsk/c6t0d1
Physical volume "/dev/rdsk/c6t0d1" has been successfully created.
Do not use the –f option with the pvcreate command. This option creates a new physical
volume forcibly and overwrites the existing volume. If you accidentally enter the character-type
device file for an existing volume, you will lose the data on that volume.
2. Repeat step 1 for each OPEN-x device on the disk array.
24 Installing and configuring HP-UX for the XP disk array
Disk HW path
3 8/12.8.8.255.0.6.0
4 8/12.8.8.255.0.6.1
5 8/12.8.8.255.0.8.0
Go to /dev/dsk directory.
Create block-type file.
Go to /dev/rdsk directory.
Driver Dev TID LUN
type
sdisk OPEN-9 6 0
sdisk OPEN-9 6 1
sdisk 3390-3B 8 0
Dev Minor Major
file no. no.
char.
files
c2t6d0 0x026000 188
c2t6d1 0x026100 188
c2t8d0 0x028000 188
Major
no.
block
files
31
31
31