Stratus ftserver 3300, Руководство по планировке объекта

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Site Planning for Fault-Tolerant Systems
Welcome to Site Planning for ftServer Systems 1-3
Site Planning for Fault-Tolerant Systems
In addition to the usual site planning tasks, such as planning sufficient AC electrical
power and providing network connections, consider the following specific fault-tolerant
features of ftServer systems:
•
Lockstep technology in ftServer systems means that the systems contain
redundant hardware.
In the event of a component malfunction, the partner component is an active spare
that continues normal operation. The failed component can then be removed and
replaced without loss of data or service.
In addition to planning for the duplicated power supplies, fans, and disk drives,
often supplied by other servers, plan for replicated core system components
including motherboards, processors, memory, I/O buses, and I/O adapters.
Consequently, site planning includes planning for two or three CPU enclosures and
for pairs of:
– I/O enclosures
– Ethernet network ports
– PCI adapters
– Power distribution units (PDUs), if used
– Power receptacles
•
ftServer systems can connect to the Stratus ActiveService Network (ASN).
Connecting a system to the ASN allows the CAC or your authorized Stratus service
representative to remotely diagnose, troubleshoot, and resolve problems online.
To enable connectivity to the Stratus ActiveService Network (ASN), which allows
the CAC or your authorized Stratus service representative to remotely manage the
system, the system contains one of the following:
– An external modem. With an external modem, ASN connectivity is only
possible if the operating system is operational.
– Two duplexed ftServer Access Adapters. Systems that contain duplexed
ftServer Access Adapters provide the highest level of availability. These
adapters connect to the ASN over an internal modem and provide ASN
connectivity even when the operating system is not operational. The adapter
also allows internal administrators to remotely service the system over an IP
network, regardless of the state of the operating system.