Setting The System Option Modes; Configuring The Fibre Channel Ports; Installing And Configuring The Host - HP StorageWorks P9000 Configuration Manual

If host mode option 33 is not set, then the default behavior is to present the volumes to the OpenVMS
host by calculating the decimal value of the hexadecimal CU:LDEV value. That calculated value
will be the value of the DGA device number.
CAUTION:
The UUID (or by default the decimal value of the CU:LDEV value) must be unique across the
SAN for the OpenVMS host and/or OpenVMS cluster. No other SAN storage controllers
should present the same value. If this value is not unique, data loss will occur.
If host mode option 33 is not set, none of the OpenVMS LUNs can have a CU:LDEV value
greater than 7F:FF. That hexadecimal value equals decimal 32767, which is the largest DGA
device number allowed by OpenVMS.
If host mode option 33 is set and the UUID for the LUN is not set, then the device will NOT
be presented to the OpenVMS host. If configuration problems arise, use the
SYS$ETC:FIBRE_SCAN program to search for devices that are presented to the OpenVMS
host.
Use the following procedure to set the UUID.
1. Start LUN Manager and display the LUN Manager window .
2. In the tree, double-click a port. The host groups corresponding to the port are displayed.
3. In the tree, select a host group. The LU Path list displays showing information about LU paths
associated with the selected host group.
4. In the LU Path list, select one or more LUNs to which volumes are assigned (if a volume is
assigned to an LUN, the columns on the right of the LUN column are not empty). When plural
LUNs are selected, same UUID is set to all selected LUNs.
5. Right-click the selection and then select Set UUID. The Set UUID window will be displayed .
6. Enter a UUID in UUID in the Set UUID window. When a OpenVMS server host is used, a UUID
can consist of the numerical value between 1 to 32,767.
7. Click OK to close the Set UUID window.
8. Click Apply in the LUN Manager window. A message appears asking whether to apply the
setting to the storage system.
9. Click OK to close the message. The settings are applied to the storage system and the UUID
is set.
CAUTION:
to OpenVMS hosts. Do not select a mode other than 05 for OpenVMS. Changing a host mode
after the host has been connected is disruptive and requires the server to be rebooted.

Setting the system option modes

The HP service representative sets the system option mode(s) based on the operating system and
software configuration of the host. Notify your HP representative if you install storage agnostic
software (such as backup or cluster software) that might require specific settings.

Configuring the Fibre Channel ports

Configure the disk array Fibre Channel ports by using Command View Advanced Edition or Remote
Web Console. Select the settings for each port based on your SAN topology. Use switch zoning
if you connect different types of hosts to the array through the same switch.

Installing and configuring the host

This section explains how to install and configure Fibre Channel adapters (FCAs) that connect the
host to the disk array.
The correct host mode must be set for all new installations (newly connected ports)
Installing and configuring the host 55