SAN Boot Implementation and Best Practices Guide ... - IBM Redbooks

4.10.3 Windows 2008 R2 best practices
The following section outlines Windows 2008 R2 best practices related to multipathing
settings.
Optimizing multipathing policies
For Windows 2008 R2, the use of the Round Robin multipathing policy can be used to
effectively distribute I/O. To verify current multipath policy settings, the Windows Disk
Management utility can be used.
To start Disk Management, the command diskmgmt.msc can be executed from a command
line. To display multipathing information for a given disk device, right-click the device and
select Properties. It is outlined in Figure 4-66.
Figure 4-66 Displaying disk properties in Windows 2008 R2 Disk Management
From within the properties panel, the MPIO tab displays information about the current
multipathing configuration. In the example shown in Figure 4-67, we can see that XIV I/O will
be distributed across two active paths by the use of the Round Robin policy.
Chapter 4. SAN Boot implementation with IBM XIV System Storage 267