Veritas Volume Manager 4.1 Administrator's Guide (HP-UX 11i v3, February 2007)

Discovering and Configuring Newly Added Disk Devices
68 VERITAS Volume Manager Administrator’s Guide
Adding Unsupported Disk Arrays to the DISKS Category
Caution The procedure in this section ensures that Dynamic Multipathing (DMP) is set
up correctly on an array that is not supported by VERITAS Volume Manager.
Otherwise, VERITAS Volume Manager treats the independent paths to the disks
as separate devices, which can result in data corruption.
To add an unsupported disk array:
1. Use the following command to identify the vendor ID and product ID of the disks in
the array:
# /etc/vx/diag.d/vxdmpinq device_name
where device_name is the device name of one of the disks in the array (for example,
/dev/rdsk/c1t20d0). Note the values of the vendor ID (VID) and product ID (PID)
in the output from this command. For Fujitsu disks, also note the number of
characters in the serial number that is displayed. The following is sample output:
# /etc/vx/diag.d/vxdmpinq /dev/rdsk/c1t20d0
Vendor id (VID) : SEAGATE
Product id (PID): ST318404LSUN18G
Revision : 8507
Serial Number : 0025T0LA3H
In this example, the vendor ID is SEAGATE and the product ID is ST318404LSUN18G.
2. Enter the following command to add a new JBOD category:
# vxddladm addjbod vid=vendorid pid=productid [length=serialno_length]
where vendorid and productid are the VID and PID values that you found from the
previous step. For example, vendorid might be FUJITSU, IBM, or SEAGATE. For Fujitsu
devices, you must also specify the number of characters in the serial number as the
argument to the length argument (for example, 10).
Note In VxVM 4.0 and later releases, a SEAGATE disk is added as a JBOD device by
default.
Continuing the previous example, the command to define an array of disks of this
type as a JBOD would be:
# vxddladm addjbod vid=SEAGATE pid=ST318404LSUN18G
3. Use the vxdctl enable command to bring the array under VxVM control as
described in “Enabling Discovery of New Devices” on page 65:
# vxdctl enable