HP StorageWorks 3000/5000 Enterprise Virtual Array connectivity for OpenVMS installation and reference guide (5697-7043, November 2007)

$ SHOW DEVICE DG

The $ SHOW DEVICE DG command displays a list of all virtual disks presented to the OpenVMS system.

NOTE:

Restarting the host system shows any newly presented virtual disks because a hardware scan is

performed as part of the startup.

If you are unable to ac cess the virtual disk, check the following:

• Verify all c abling to the switch, Enterprise Virtua l Array, and host.

• Verify all ﬁrmware levels (check the associated Enterprise Virtual Array release notes for details).

• Ensure you are running a supported version of the host operating system and latest Engineering

Change Order (ECO) kits.

• Check the SRM Console ﬁrmware on Alpha servers.

• Ensure that the correct host is selected for this virtual disk and that a unique OS Unit ID is used in

the HP Command View EVA.

• Ensure OpenVMS is selected as the o perating system for the virtual disk in the HP Command

View EVA.

• Check switch zoning.

Conﬁguring virtual disks from the host

After you set up the virtual disks on the EVA and have rescanned or restarted the host, follow the

host-speciﬁ c conventions for conﬁguring these new disk resources. Refer to the documentation that came

with your ser ver for speciﬁc instructions on setting up disk resources.

Disk conﬁguration consists of initializing the virtual disk resource as follows:

1. Initialize the virtual disk with the following INITIALIZE command:

INITIALIZE name-of-virtual-disk volume-label

2. Mount the virtual disk with the following MOUNT command:

MOUNT/SYSTEM name-of-virtual-disk volume-label

NOTE:

The /SYSTEM switch is used for a single stand-alone system. Use /CLUSTER for OpenVMS

clusters.

3. View the virtual disk’s information with the SHOW DEVICE command. For example, use the

following c om m a nd sequence to conﬁgure a virtual disk named data1 in a stand-alone environment:

$ INIT $1$DGA1: data1

$ MOUNT/SYSTEM $1$DGA1: data1

$ SHOW DEV $1$DGA1: /FULL

Setting p referred paths

You can set or change the preferred path used for a virtual disk by using the SET DEVICE /PATH

command

. For example:

$ SET DEVICE $1$DGA83: /PATH=PGA0.5000-1FE1-0007-9772/SWITCH

This gives you control of which path each virtual disk uses.

For additional information on using OpenVMS commands, see the O penVMS help ﬁle:$ HELP TOPIC

Testing connections to the Enterprise Virtual Array