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64 Sun Fire V490 Server Administration Guide • August 2004
The following table provides a summary of each tool with a pointer to additional
information.
About 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 FC-AL host bus
adapters connected to the same dual-ported storage array.
For Sun Fire V490 systems, three different types of multipathing software are
available:
■ Solaris IP Network Multipathing software provides multipathing and load
balancing capabilities for IP network interfaces.
■ Sun StorEdge Traffic Manager software for the Solaris OS, which is part of the Sun
SAN Foundation Suite, automates multipath I/O failover, failback, and SAN-
wide load balancing.
TABLE 5-1 System Administration Tool Summary
Tool Description
For More
Information
Multipathing
software
Multipathing software is used to define and control
alternate (redundant) physical paths to I/O devices.
If the active path to a device becomes unavailable,
the software can automatically switch to an alternate
path to maintain availability.
See “About
Multipathing
Software” on
page 64.
Volume
management
software
Volume management applications, such as Solstice
DiskSuite, provide easy-to-use online disk storage
management for enterprisecomputing environments.
Using advanced RAID technology, these products
ensure high data availability, excellent I/O
performance, and simplified administration.
See “About
Volume
Management
Software” on
page 65.
Sun Cluster
software
Sun Cluster software enables you to interconnect
multiple Sun servers so that they work together as a
single, highly available and scalable system. Sun
Cluster software delivers high availability—through
automatic fault detection and recovery—and
scalability, ensuring that mission-critical applications
and services are always available when needed.
See “About Sun
Cluster
Software” on
page 69.