VERITAS Volume Manager 4.1 Administrator's Guide

Administering Disks

Conﬁguring Newly Added Disk Devices

Chapter 2 69

NOTE The items in a list of physical controllers are separated by + characters.

You can use the command vxdmpadm getctlr all to obtain a list of physical

controllers.

You can specify only one selection argument to the vxdisk scandisks

command. Specifying multiple options results in an error.

For more information, see the vxdisk(1M) manual page.

Discovering Disks and Dynamically Adding Disk Arrays

You can dynamically add support for a new type of disk array which has been developed by a

third-party vendor. The support comes in the form of vendor supplied libraries, and is added

to to an HP-UX system by using the swinstall command.

Disk Categories

Disk arrays that have been certiﬁed for use with VERITAS Volume Manager are supported by

an array support library (ASL), and are categorized by the vendor ID string that is returned

by the disks (for example, HITACHI and DGC).

Disks in JBODs for which DMP (see Chapter 3, “Administering Dynamic Multipathing

(DMP),” on page 109)” on page 99) can be supported in Active/Active mode, and which are

capable of being multipathed, are placed in the DISKS category. Disks in unsupported arrays

can be placed in this category by following the steps given in “Adding Unsupported Disk

Arrays to the DISKS Category” on page 73.

Disks in JBODs that do not fall into any supported category, and which are not capable of

being multipathed by DMP are placed in the OTHER_DISKS category.

Adding Support for a New Disk Array

The following example illustrates how to add support for a new disk array named vrtsda to

system using a vendor-supplied package on a mounted CD-ROM:

# swinstall -s /cdrom vrtsda

The new disk array does not need to be already connected to the system when the package is

installed. If any of the disks in the new disk array are subsequently connected, and if

vxconﬁgd is running, vxconﬁgd immediately invokes the Device Discovery function and

includes the new disks in the VxVM device list.