The IBM Virtual Shared Disk now supports the Subsystem Device Driver
(SDD). The SDD is an IBM Enterprise Storage Server (ESS) device driver
that provides:
Enhanced data availability
Automatic path failover and recovery to an alternate path
Dynamic load balancing of multiple paths
Concurrent microcode upgrade.
For more information on the IBM Virtual Shared Disk's support for the
Subsystem Device Driver, see Subsystem Device Driver Overview.
The IBM Virtual Shared Disk subsystem now supports nodes that have two
switch adapters. For more information see Overview of Multilink Adapter Support.
