HP VMA-series Memory Arrays - Manual (Page 82)

82 AM456-9007B Rev 02 HP VMA SAN Gateway Installation and User Guide
Optimizing Connectivity to Storage Arrays for Windows
Depending on the Windows operating system, client machines using vSHARE
should use the Microsoft® Multipath I/O (MPIO) driver.
Install the appropriate driver for your operating system:
Windows Server 2008 R2 and above
Install the Microsoft MPIO driver. MPIO is not installed by default. Use the
following link for installation instructions.
Installing and Configuring MPIO for Windows Server 2008 R2:
http://technet.microsoft.com/en-us/library/ee619752(WS.10).aspx
For HA configurations, to ensure proper MPIO operation when an HP VMA SAN
Gateway failure occurs, do the following:
1. Install SP1 on Windows Server 2008 R2.
2. Install HotFix KB2522766 (from the Microsoft Support site).
3. Install HotFix KB2460971 (from the Microsoft Support site).
Deploying vSHARE in a High Availability Configuration
HP VMA SAN Gateways running vSHARE can be deployed in a High Availability
(HA) configuration. In a vSHARE HA configuration, two HP VMA SAN
Gateways provide redundant access to a VMA Array.
The HP VMA SAN Gateways operate in an active-active, symmetrical
configuration. Data is accessible via both HP VMA SAN Gateways. If one of the
Gateways fails, or a link along one of the paths to the Array goes down, data is
available seamlessly via the other Gateway.