Multipathing configuration maximums

When you configure multipathing on your hosts, you must consider the maximum supported configuration limits.

The following table provides the configuration maximums for hosts running the Windows® 2000 Server, Windows Server 2003, or Windows Server 2008 operating system.

Note: Check your operating system and HBA documentation for limitations that may be imposed by other driver software.

Object	Maximum	Description
VDisk	512 (See Note 1.)	The maximum number of VDisks that can be supported by the SAN Volume Controller for a host running a Windows operating system (per host object).
Paths per VDisk (See Note 2.)	8	The maximum number of paths to each VDisk. The recommended number of paths is 4.
Notes: You can assign a maximum of 26 individual drive letters to a host running a Windows operating system. However, Windows 2000 Server, Windows Server 2003, and Windows Server 2008 support submounting drives as directories within other drives. SDD and SDDDSM for Windows support 16 paths per VDisk, but the SAN Volume Controller supports only a maximum of eight paths, to support a reasonable path-failover time.