VERITAS Volume Manager 3.5 Administrator's Guide (September 2002)

Chapter 2, Administering Disks

Configuring Newly Added Disk Devices

You can also use the vxdisk scandisks command to scan devices in the operating

system device tree and to initiate dynamic reconﬁguration of multipathed disks. See the

vxdisk(1M) manual page for more information.

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 an HP-UX system by using the swinstall command.

Adding Support for a New Disk Array

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

vrtsda to an HP-UX 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.

Device Discovery Function

To have VxVM discover a new disk array, use the following command:

# vxdctl enable

This commandscans allof the disk devices andtheir attributes,updates the VxVM device

list, and reconﬁgures DMP with the new device database. There is no need to reboot the

host.

Removing Support for a Disk Array

To remove support for the vrtsda disk array, use the following command:

# swremove vrtsda

If the arraysremainphysically connected to thehost after support hasbeen removed,they

are listed in the OTHER_DISKS category, and the volumes remain available.