Multipathing Software
Multipathing software lets you define and control redundant physical paths to I/O devices, such as storage devices and network interfaces. If the active path to a device becomes unavailable, the software can automatically switch to an alternate path to maintain availability. This capability is known as automatic failover. To take advantage of multipathing capabilities, you must configure the server with redundant hardware, such as redundant network interfaces or two host bus adapters connected to the same
For the Netra 440 server, three different types of multipathing software are available:
■Solaris IP Network Multipathing software provides multipathing and
■VERITAS Volume Manager (VVM) software includes a feature called Dynamic Multipathing (DMP), which provides disk multipathing as well as disk load balancing to optimize I/O throughput.
■Sun StorEdge™ Traffic Manager is an architecture fully integrated within the Solaris OS (beginning with the Solaris 8 release) that enables I/O devices to be accessed through multiple host controller interfaces from a single instance of the I/O device.
For More Information
For information about setting up redundant hardware interfaces for networks, refer to the Netra 440 Server Installation Guide
For instructions on how to configure and administer Solaris IP Network Multipathing, consult the IP Network Multipathing Administration Guide provided with your specific Solaris release.
For information about VVM and its DMP feature, see “Volume Management Software” on page 52 and refer to the documentation provided with the VERITAS Volume Manager software.
For information about Sun StorEdge Traffic Manager, refer to the Netra 440 Server Product Overview
