Appendix H. High Availability Cabling
HA - 7017 Cluster Servers consist of a minimum of two systems in a cluster with two
7133 SSA Disk Storage Systems. Each system in the cluster requires the AIX operating
system software and HACMP high-availability cluster software. The base systems use
and share the external SSA disks in the 7133 SSA Disk Storage Systems.
Each system in a cluster has a minimum of two SSA PCI adapters to allow redundant
connection to the 7133 SSA Disk Storage Systems.
It is highly recommended that a 3153 ASCII terminal (or equivalent) be purchased even
if graphics adapters or remote workstations are used as the control console. This allows
a service representative to work on one of the cluster servers through the serial port
without affecting the other server. If a graphical display is preferred to the 3153 display,
a low cost workstation can be connected through an ethernet connection or a local
network.
The 7133 Serial Disk Storage System is shipped with eight 9.1 GB SSA disk drives on
two loops and a redundant AC power supply
Up to four SSA adapters can be put in each cluster server. The base cluster server
systems offer configuration flexibility. Since cluster servers are comprised of systems
that can operate independently, all normally available features are supported.
Configuring the HA - 7017 Cluster Server System With No Single Points of
Failure
Redundant adapters and mirrored disks are the only way to guarantee redundancy in
the 7133 serial disk system. In this configuration, no single hardware component failure
can cause the serial disk system to be unavailable.
Refer to the
High Availability Cluster Multi-Processing for AIX, Version 4.3: Enhanced
Scalability Installation and Administration Guide, SC23-4284, and the High Availability
Cluster Multi-Processing for AIX, Version 4.3: Planning Guide , SC23-4277, for
HACMP/ES planning information.
The following table describes outages and their impacts for the minimum cluster server
configuration with mirrored SSA adapters (2 ethernets, 2 SSA adapters, mirrored disk,
HACMP, external SSA and two power distribution units (PDUs) per I/O rack).
247
Содержание Enterprise Server S80
Страница 1: ...Enterprise Server S80 pSeries 680 Model S85 User s Guide SA38 0557 01 IBM...
Страница 10: ...x S80 and S85 User s Guide...
Страница 14: ...xiv S80 and S85 User s Guide...
Страница 16: ...xvi S80 and S85 User s Guide...
Страница 21: ...Chapter 1 System Introduction 3...
Страница 26: ...8 S80 and S85 User s Guide...
Страница 124: ...106 S80 and S85 User s Guide...
Страница 158: ...I O Drawer 3 Locations 140 S80 and S85 User s Guide...
Страница 194: ...176 S80 and S85 User s Guide...
Страница 214: ...196 S80 and S85 User s Guide...
Страница 216: ...198 S80 and S85 User s Guide...
Страница 218: ...200 S80 and S85 User s Guide...
Страница 220: ...202 S80 and S85 User s Guide...
Страница 228: ...210 S80 and S85 User s Guide...
Страница 232: ...214 S80 and S85 User s Guide...
Страница 236: ...218 S80 and S85 User s Guide...
Страница 263: ...error Handle unexpected modem responses expect 8 r or 7 r or 4 r or 3 r delay 2 done Appendix G Modem Configurations 245...
Страница 264: ...246 S80 and S85 User s Guide...
Страница 274: ...256 S80 and S85 User s Guide...
Страница 281: ......