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Chapter 7 Server Administration 135

Sun’s volume management applications offer the following features:

■ Support for several types of RAID configurations, which provide varying degrees

of availability, capacity, and performance

■ Hot-spare facilities, which provide for automatic data recovery when disks fail

■ Performance analysis tools, which let you monitor I/O performance and isolate

bottlenecks

■ A graphical user interface, which simplifies storage management

■ Support for online resizing, which enables volumes and their file systems to grow

and shrink online

■ Online reconfiguration facilities, which let you change to a different RAID

configuration or modify characteristics of an existing configuration

Multipathing Software

Sun StorEdge Traffic Manager software for Solaris OS, which is part of the Sun SAN

Foundation Suite, automates multipath I/O failover, failback, and SAN-wide load

balancing. For more information about this product, see the Sun Fire V890 Server

Product Notes.

RAID Concepts

Solstice DiskSuite software supports RAID technology to optimize performance,

availability, and user cost. RAID technology improves performance, reduces

recovery time in the event of file system errors, and increases data availability even

in the event of a disk failure. There are several levels of RAID configurations that

provide varying degrees of data availability with corresponding trade-offs in

performance and cost.

This section describes some of the most popular and useful of those configurations,

including:

■ Disk concatenation

■ Disk mirroring (RAID 1)

■ Disk striping (RAID 0)

■ Disk striping with parity (RAID 5)

■ Hot spares

Sun Microsystems Sun Fire V890 User Manual

Other manuals for Sun Microsystems Sun Fire V890