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Sun Fire V445 Server Administration Guide - SCN Research

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Reliability, Availability, and<br />

Serviceability (RAS) Features<br />

The <strong>Sun</strong> <strong>Fire</strong> <strong>V445</strong> server provides the following RAS features:<br />

■ Hot-pluggable disk drives<br />

■ Redundant, hot-swappable power supplies, fan trays, and USB components<br />

■ <strong>Sun</strong> ALOM system controller with SSH connections for all remote monitoring and<br />

control<br />

■ Environmental monitoring<br />

■ Automatic system restoration (ASR) capabilities for PCI cards and memory<br />

DIMMs<br />

■ Hardware watchdog mechanism and externally initiated reset (XIR) capability<br />

■ Internal hardware disk mirroring (RAID 0/1)<br />

■ Support for disk and network multipathing with automatic failover<br />

■ Error correction and parity checking for improved data integrity<br />

■ Easy access to all internal replaceable components<br />

■ Full in-rack serviceability for all components<br />

■ Persistent storage for all configuration change events<br />

■ Persistent storage for all system console output<br />

See Chapter 5 for information on how to configure these features.<br />

<strong>Sun</strong> Cluster Software<br />

<strong>Sun</strong> Cluster software enables you to connect up to eight <strong>Sun</strong> servers in a cluster<br />

configuration. A cluster is a group of nodes that are interconnected to work as a<br />

single, highly available and scalable system. A node is a single instance of Solaris<br />

software. The software can be running on a standalone server or on a domain within<br />

a standalone server. With <strong>Sun</strong> Cluster software, you can add or remove nodes while<br />

online, and mix and match servers to meet your specific needs.<br />

<strong>Sun</strong> Cluster software delivers high availability through automatic fault detection<br />

and recovery, and scalability, ensuring that mission-critical applications and services<br />

are always available when needed.<br />

Chapter 1 System Overview 21

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