HP 3PAR RedHat and Oracle Linux Implementation Guide

2. To verify the host definition, issue the showhost command. For example:
# showhost
2 redhathost 1122334455667788 4:0:1
1122334455667799 5:0:1
Connecting the HP 3PAR StoreServ Storage to the Host
During this stage, connect the HP 3PAR StoreServ Storage to the host directly or to the fabric. This
set of tasks includes physically cabling the HP 3PAR StoreServ Storage to the host or fabric.
Setting Up and Zoning the Fabric
NOTE: This section does not apply when deploying HP Virtual Connect Direct-Attach Fibre
Channel storage for HP 3PAR storage systems, where the HP 3PAR StoreServ Storage ports are
cabled directly to the uplink ports on the HP Virtual Connect FlexFabric 10 Gb/24-port Module
for c-Class BladeSystem. Zoning is automatically configured based on the Virtual Connect SAN
Fabric and server profile definitions.
For more information about HP Virtual Connect, HP Virtual Connect interconnect modules, and the
HP Virtual Connect Direct-Attach Fibre Channel feature, see HP Virtual Connect documentation.
To obtain this documentation, search the HP SC website:
HP Support Center
See also the HP SAN Design Reference Guide, available on the following website:
Fabric zoning controls which Fibre Channel end-devices have access to each other on the fabric.
Zoning also isolates the host and HP 3PAR StoreServ Storage ports from Registered State Change
Notifications (RSCNs) that are irrelevant to these ports.
You can set up fabric zoning by associating the device World Wide Names (WWNs) or the switch
ports with specified zones in the fabric. Although you can use either the WWN method or the port
zoning method with the HP 3PAR StoreServ Storage, the WWN zoning method is recommended
because the zone survives the changes of switch ports when cables are moved around on a fabric.
Required
Employ fabric zoning, using the methods provided by the switch vendor, to create relationships
between host HBA ports and storage server ports before connecting the host HBA ports or HP 3PAR
StoreServ Storage ports to the fabric(s).
Fibre Channel switch vendors support the zoning of the fabric end-devices in different zoning
configurations. There are advantages and disadvantages with each zoning configuration. Choose
a zoning configuration based on your needs.
The HP 3PAR StoreServ Storage arrays support the following zoning configurations:
• One initiator to one target per zone
• One initiator to multiple targets per zone (zoning by HBA). This zoning configuration is
recommended for the HP 3PAR StoreServ Storage. Zoning by HBA is required for coexistence
with other HP Storage arrays.
NOTE: For high availability/clustered environments that require multiple initiators to access
the same set of target ports, HP recommends that separate zones be created for each initiator
with the same set of target ports.
NOTE: The storage targets in the zone can be from the same HP 3PAR StoreServ Storage,
multiple HP 3PAR StoreServ Storages , or a mixture of HP 3PAR and other HP storage systems.
14 Configuring the HP 3PAR StoreServ Storage for Fibre Channel