HP StorageWorks Tru64 UNIX Kit V3.0B for Enterprise Virtual Array Installation and Configuration Guide (AA-RUGPB-TE, October 2003)

Testing Connections to the Enterprise Virtual Array
27Tru64 UNIX Kit V3.0B for Enterprise Virtual Array Installation and Configuration Guide
3. Ensure that the host FCAs have been added by inspecting the Host folder in
the Navigation tree of the Command View EVA.
Creating and Presenting Virtual Disks
This section describes how to create and present additional virtual disks to host
servers and verify that the hosts can access them.
1. Create a virtual disk family on the Enterprise Virtual Array using the
Command View EVA.
2. Set values for the following:
■ Virtual Disk Name
■ Vraid level
■ Size
■ Present to Host (preferably to the host you just created)
■ OS Unit ID should be set to a unique value for each virtual disk (see “OS
Unit ID” on page 27)
3. If you chose a specific LUN on the Virtual Disk Properties page, you are
prompted to select a LUN number.
4. Restart the server or rescan the bus.
OS Unit ID
There is a field on the Virtual Disk properties page for OS Unit ID. This is an
optional field for Tru64 UNIX. HP recommends that each virtual disk have a
unique ID number. You can take advantage of this field to easily track the virtual
disks presented to the Tru64 UNIX hosts. When you list the drives using hwmgr,
they appear with the number you give it in the OS Unit ID field instead of the
P/T/L information.
You need to make the OS Unit ID values unique across the entire SAN, not just
the controller subsystem.
Verifying Virtual Disks from the Host
This section describes how to verify that Tru64 UNIX hosts can access the virtual
disks created on the Enterprise Virtual Array with the Command View EVA. The
host can recognize Enterprise Virtual Array devices either through a system restart
or by rescanning the bus.