Software Manual

Supporting VMware with FC and iSCSI
The HP 3PAR Host Explorer for VMware supports VMware ESX Hosts connected to the HP 3PAR
StoreServ Storage systems with FC or iSCSI connectivity. No enclosure devices are presented to
ESX Hosts.
HP 3PAR Host Explorer for VMware establishes the connectivity between the ESX hosts, and HP
3PAR StoreServ Storage systems using REST calls to the Storage System. Hence, it is recommended
to ensure that the HTTPs port 8080, and Web services are enabled on the Storage System. If this
approach fails to establish the connectivity due to reasons other than StoreServ SSL Certificate
Handshake issues, then SSH is used to establish the same if the SSH option is enabled on the
storage system.
HP 3PAR Host Explorer for VMware collects the data of configured VCenters, and ESX Hosts through
the APIs exposed by vSphere Web Services SDK. The collected data is transferred to HP 3PAR
Storage System using TPD TCL through SSL Port 5783.
It is required to enable SSL port 5783 on HP 3PAR Storage System when adding the Storage
System to the Configuration. It is recommended to enable the HP 3PAR Storage System SSL port
5783 when transferring the collected data. If the port is not enabled, the HP 3PAR Host Explorer
for VMware transfers the collected data through SSH.
NOTE: Ensure that the WSDL service is running in the ESX Hosts and vCenters.
The API calls performed by vSphere Web Services SDK are resource intensive. You might experience
a high CPU usage for few seconds when these APIs are called during data collection process.
Storage System Upgrades and Enclosure Devices
If you upgraded from a version of the HP 3PAR Operating System (OS) released before 2.3.1,
you must consider the following notes about LUNs with ID 254.
• If you had a LUN with ID 254 before you upgraded the HP 3PAR OS, the host persona for
the host is set to the Generic-Legacy persona number 6 during the upgrade process. The port
persona number must be reset to Generic persona number 1 before the Host Explorer can
communicate with the storage system.
1. Use the HP 3PAR Command Line Interface (CLI) sethost –persona 1 <host
name>command to set the host persona number to 1.
2. Use the controlport offline command to take the HP 3PAR StoreServ Storage
system port the host is connected to offline.
3. Use the controlport rst command to reset the HP 3PAR StoreServ Storage system
port connected to the host.
Alternatively, if you reboot the host after resetting the persona number as described in
step 1, the Host Explorer automatically discovers the enclosure device on LUN ID 254
and sends the information to the storage system. For more information about CLI
commands, see the HP 3PAR Command Line Interface Administrator’s Manual.
• If you add a host after you upgraded the HP 3PAR OS, the host persona number for the host
must be set to 1. For more information about creating and modifying hosts, see the HP 3PAR
Command Line Interface Administrator’s Manual.
You can also use the HP 3PAR Management Console to configure and administer hosts
connected to the storage systems. For more information, see the HP 3PAR Management Console
Online Help.
14 Using the Host Explorer