HP StorageWorks SAN Virtualization Services Platform administrator guide (5697-0204, January 2010)

3. Create the new back-end LU.
4. Present the new back-end LU to at least one and not more than two DPM quads per DPM group
and VSM servers.
NOTE:
On some arrays, the term present is also known as permission for allowing access.
To discover new back-end LUNs, perform a rescan from Computer Management on the VSM server.
Do not use the Rescan devices option from the Windows Management GUI. Use this general procedure
when assigning a new storage array LUN:
1. Log in to the VSM server, right-click on the My Computer icon, and select Manage.
2. Click Device Manager. In the right pane, right-click Disk Drives, and select Scan for hardware
changes.
3. After the screen stops refreshing, open the VSM GUI and navigate to Entities > Back End LUs >
Rescan Devices. The added LUs appear in the GUI under the list of back-end LUs.
Adding new servers
This section describes special requirements when installing new host servers. When setting up a new
server, be sure to balance the workload on the DPMs by using the primary/secondary properties of
the virtual disk
Deploying VMware ESX Server with SVSP
For current information regarding VMware and SVSP, see the HP StorageWorks SAN Virtualization
Services Platform release notes.
To ensure proper deployment, the following sections must be followed in order. HP recommends that
you test this deployment in a test environment before using it in a production environment. The ESXi
4.0 Configuration Guide is available at http://www.vmware.com/pdf/vsphere4/r40/
vsp_40_esxi_server_config.pdf.
For additional VMware information, see the storage section in the VMware ESX Server 3i Configuration
Guide available at https://www.vmware.com/pdf/vi3_35/esx_3i_e/r35u2/
vi3_35_25_u2_3i_server_config.pdf. Information can also be found in the storage section of the
VMware ESXi 4.0 Configuration Guide, available at http://www.vmware.com/pdf/vsphere4/r40/
vsp_40_esxi_server_config.pdf.
Deployment overview
The basic supported setup includes two Data Path Modules (DPMs) and two VSM servers. From the
VMware side, the supported setup includes standalone VMware ESX servers and/or VMware cluster
with HA and DSR. These features ensure high availability and resource load balancing for the entire
VMware storage environment. It is highly recommended that you build an environment that combines
VMware cluster (HA+DSR) with at least two DPMs, two VSM servers, and two storage systems (or
one storage system with two controllers) as presented in the following diagram.
HP StorageWorks SAN Virtualization Services Platform administrator guide 27