FUJITSU SPARC ENTERPRISE T5220 - Manual (Page 26)

10 SPARC Enterprise T5120 and T5220 Servers Overview Guide • August 2007
■ Fan speed and status
■ Power supply status
■ Voltage conditions
■ Solaris watchdog, boot time-outs and automatic server restart events
In addition to the ILOM CLI and BUI, you can set up the server to use an
ALOM CMT compatibility CLI. The ALOM CMT compatibility CLI provides
commands that approximate the ALOM CMT UI that is a system controller
interfaced provided on some previous servers.
High Levels of System Reliability, Availability,
and Serviceability
Reliability, availability, and serviceability (RAS) are aspects of a system’s design that
affect its ability to operate continuously and to minimize the time necessary to
service the system. Reliability refers to a system’s ability to operate continuously
without failures and to maintain data integrity. System availability refers to the
ability of a system to recover to an operational state after a failure, with minimal
impact. Serviceability relates to the time it takes to restore a system to service
following a system failure. Together, reliability, availability, and serviceability
features provide for near continuous system operation.
To deliver high levels of reliability, availability, and serviceability, the SPARC
Enterprise T5120 and T5220 servers offer the following features:
■ Ability to disable individual threads and cores without rebooting
■ Lower heat generation reduces hardware failures
■ Hot-pluggable hard drives
■ Redundant, hot-swappable power supplies (two)
■ Redundant hot-swappable fan units
■ Environmental monitoring
■ Internal hardware drive mirroring (RAID 1)
■ Error detection and correction for improved data integrity
■ Easy access for most component replacements
Hot-Pluggable and Hot-Swappable Components
SPARC Enterprise T5120 and T5220 servers hardware is designed to support hot-
plugging of the chassis-mounted hard drives, and hot-swapping of fan units, and
power supplies. By using the proper software commands, you can install or remove
these components while the system is running. Hot-swap and hot-plug technology