HP XP20000/XP24000 HP StorageWorks XP Disk Array Configuration Guide (T5278-96 - Page 20

Configuring disk array devices

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• z = LUN • c stands for controller • t stands for target ID • d stands for device The numbers x, y, and z are hexadecimal. Table 3 Device file name example (HP-UX) SCSI bus instance number 00 00 Hardware path 14/12.6.0 14/12.6.1 SCSI TID LUN 6 0 6 2 File name c6t0d0 c6t0d1 5. Verify that the SCSI TIDs correspond to the assigned port address for all connected ports (see mapping tables in SCSI TID map for Fibre Channel adapters (HP-UX), for values). If so, the logical devices are recognized properly. If the logical devices are not recognized properly: • Check the AL-PA for each port using the LUN Manager software. • If the same port address is set for multiple ports on the same loop (AL with HUB), all port addresses except one changed to another value, and the relationship between AL-PA and TID does not correspond to the mapping given in SCSI TID map for Fibre Channel adapters (HP-UX), set a different address for each port, reboot the server, and then verify new device recognition again. • If unused device information remains, the TID-to-AL-PA mapping will not correspond to the mapping given in SCSI TID map for Fibre Channel adapters (HP-UX). Renew the device information, and then verify new device recognition again. Configuring disk array devices Disk arrays are configured using the same procedure for configuring any new disk on the host. This includes the following procedures: 1. "Verifying the device files and drivers" (page 21) 2. "Creating the device files" (page 21) 3. "Creating the physical volumes" (page 23) 4. "Creating new volume groups" (page 23) 5. "Creating logical volumes" (page 25) 6. "Creating the file systems" (page 27) 7. "Setting the I/O timeout parameter" (page 27) 8. "Creating the mount directories" (page 28) 9. "Mounting and verifying the file systems" (page 28) 10. "Setting and verifying the auto-mount parameters" (page 29) The HP-UX system uses the Logical Volume Manager (LVM) to manage the OPEN-x devices on the disk array. The instructions in this section do not explicitly cover all LVM configuration issues. For further information on LVM configuration, see the HP-UX user documentation. HP System Administrator Manager (SAM) can be used instead of UNIX commands to configure SCSI disk devices. See Reference information for the HP System Administrator Manager SAM for further information. The newer releases of HP-UX have deprecated the SAM tool and replaced it with the System Management Homepage (SMH) tool. 20 HP-UX

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•
z
= LUN
•
c
stands for controller
•
t
stands for target ID
•
d
stands for device
The numbers
x
,
y
, and
z
are hexadecimal.
Table 3 Device file name example (HP-UX)
File name
LUN
SCSI TID
Hardware path
SCSI bus instance
number
c6t0d0
0
6
14/12.6.0
00
c6t0d1
2
6
14/12.6.1
00
5.
Verify that the SCSI TIDs correspond to the assigned port address for all connected ports (see
mapping tables in
SCSI TID map for Fibre Channel adapters (HP-UX)
, for values). If so, the
logical devices are recognized properly.
If the logical devices are not recognized properly:
•
Check the AL-PA for each port using the LUN Manager software.
•
If the same port address is set for multiple ports on the same loop (AL with HUB), all port
addresses except one changed to another value, and the relationship between AL-PA and
TID does not correspond to the mapping given in
SCSI TID map for Fibre Channel adapters
(HP-UX)
, set a different address for each port, reboot the server, and then verify new
device recognition again.
•
If unused device information remains, the TID-to-AL-PA mapping will not correspond to
the mapping given in
SCSI TID map for Fibre Channel adapters (HP-UX)
. Renew the device
information, and then verify new device recognition again.
Configuring disk array devices
Disk arrays are configured using the same procedure for configuring any new disk on the host.
This includes the following procedures:
1.
“Verifying the device files and drivers” (page 21)
2.
“Creating the device files” (page 21)
3.
“Creating the physical volumes” (page 23)
4.
“Creating new volume groups” (page 23)
5.
“Creating logical volumes” (page 25)
6.
“Creating the file systems” (page 27)
7.
“Setting the I/O timeout parameter” (page 27)
8.
“Creating the mount directories” (page 28)
9.
“Mounting and verifying the file systems” (page 28)
10.
“Setting and verifying the auto-mount parameters” (page 29)
The HP-UX system uses the Logical Volume Manager (LVM) to manage the OPEN-
x
devices on the
disk array. The instructions in this section do not explicitly cover all LVM configuration issues. For
further information on LVM configuration, see the HP-UX user documentation.
HP System Administrator Manager (SAM) can be used instead of UNIX commands to configure
SCSI disk devices. See
Reference information for the HP System Administrator Manager SAM
for
further information. The newer releases of HP-UX have deprecated the SAM tool and replaced it
with the System Management Homepage (SMH) tool.
20
HP-UX