HP ProLiant 2000 Eliminating Single Points of Failure and Enabling Rapid Recov
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- HP ProLiant 2000 | Eliminating Single Points of Failure and Enabling Rapid Recov - Page 1
and secondary storage • Power • Cooling • Management An overview of the Compaq Pre-Failure Warranty is also included. Most sections contain references to other Compaq white papers and technology briefs for more in-depth technical information about specific server subsystems. Please direct comments - HP ProLiant 2000 | Eliminating Single Points of Failure and Enabling Rapid Recov - Page 2
RECIPIENT. IN NO EVENT SHALL COMPAQ BE LIABLE FOR ANY DIRECT, COMPAQ HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. The limited warranties for Compaq is Good, Compaq, Compaq Insight Manager and ProLiant are registered with respective companies. ©1997 Compaq Computer Corporation. All rights - HP ProLiant 2000 | Eliminating Single Points of Failure and Enabling Rapid Recov - Page 3
Points of Failure (cont.) ... INTRODUCTION Compaq researches and develops server subsystems expressly to eliminate single points of failure and minimize downtime through fault-prevention, fault-tolerance, and rapid-recovery technologies. Compaq emphasizes reliability, along with performance and - HP ProLiant 2000 | Eliminating Single Points of Failure and Enabling Rapid Recov - Page 4
applicable. Processor Without the Compaq approach to improved reliability, the server would come to an abrupt power supply. These safeguards help ensure that fault prevention, fault tolerance, and rapid recovery goals are met. The Off-Line Backup Processor option, available on the Compaq ProLiant - HP ProLiant 2000 | Eliminating Single Points of Failure and Enabling Rapid Recov - Page 5
(cont.) ... A Pentium processor requires tightly controlled power from a dedicated power supply. If a power supply module supporting a processor fails, the system goes down. To prevent that, Compaq servers have three processor power supply modules to support every two processors (two active and one - HP ProLiant 2000 | Eliminating Single Points of Failure and Enabling Rapid Recov - Page 6
problem. Compaq in this class of servers service, allowing conveniently scheduled replacement of the failed controller. In systems with hot plug capability, the failed NIC can be replaced without shutting down the system. To help ensure a consistently regulated power supply to the I/O boards, Compaq - HP ProLiant 2000 | Eliminating Single Points of Failure and Enabling Rapid Recov - Page 7
mainstream server disk drive arrays, and Compaq arrays are now in the seventh generation. The latest models include powerful troubleshooting features to help predict and prevent drive failure. Drive Parameter Tracking monitors drives and notifies the system administrator of potential problems, while - HP ProLiant 2000 | Eliminating Single Points of Failure and Enabling Rapid Recov - Page 8
partner to the PCI Hot Plug technology: System service continues uninterrupted after the failover, and the failed controller can be replaced without shutting the system down. This option is supported for single bus versions of ProLiant Storage System/U units in tower and rack-mount configurations - HP ProLiant 2000 | Eliminating Single Points of Failure and Enabling Rapid Recov - Page 9
servers Compaq Fibre-Channel-Attached Storage. Compaq's DLT drives use advanced linear recording technology, a highly accurate tape guide out of operation. A powerful Reed Solomon ECC featuring a support RAIT configurations, such as Seagate Backup Exec and Legato Networker, can also be run with Compaq - HP ProLiant 2000 | Eliminating Single Points of Failure and Enabling Rapid Recov - Page 10
rigorous testing to help ensure superior performance. On the Compaq ProLiant 6000, 6500, and 7000 servers, power supplies can be arranged in an n+1 configuration, where n equals the number of power supplies required to run the system. Power supplies share the load; one can fail without a loss of - HP ProLiant 2000 | Eliminating Single Points of Failure and Enabling Rapid Recov - Page 11
intelligent power supply in three high-end servers, the ProLiant 6000, 6500,and 7000, as well as the ProLiant Storage System. For more information about the Intelligent Power Supply, see technology brief ECG025.0897, Intelligent Power Supply. The Compaq UPS provides temporary power to the server in - HP ProLiant 2000 | Eliminating Single Points of Failure and Enabling Rapid Recov - Page 12
of connection, regardless of server condition. • Critical information and troubleshooting data capture. • Immediate alerting for quick response to protect business-critical data and applications. • Full battery backup on the board to prevent failure due to server power outage. • Variable user access - HP ProLiant 2000 | Eliminating Single Points of Failure and Enabling Rapid Recov - Page 13
than 1,000 parameters), remote maintenance, and visual control of servers in a network environment. Compaq Insight Manager is standard on all Compaq ProSignia and ProLiant servers. Insight management agents provide information to Compaq Insight Manager and generate alarm notifications for the system
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In today’s global-operation, information-driven business arena, enterprise servers are expected to
be available around the clock, and the value of the data on those servers increases daily. As a
result, the cost of server downtime is increasingly prohibitive.
As a technology leader, Compaq continues to develop fault prevention, fault tolerance, and rapid
recovery technologies that help make systems more reliable by eliminating single points of failure
and minimizing downtime when failure does occur.
This technology brief provides a brief overview of fault prevention, fault tolerance, and rapid
recovery technologies as they are implemented in the following Compaq server subsystems:
•
Processor
•
Expansion
•
Memory
•
Primary and secondary storage
•
Power
•
Cooling
•
Management
An overview of the Compaq Pre-Failure Warranty is also included. Most sections contain
references to other Compaq white papers and technology briefs for more in-depth technical
information about specific server subsystems.
Please direct comments regarding this communication to the ECG Technology Communications Group at this Internet
address:
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