Index_A

A

abstraction

using in WebSphere application design, 406

ACK directives

settings for in IBM AIX, 268

active-active clustering

typical configuration and function of, 297 “298

active-active databases

configuration example, 223

connection timeout settings for failover configuration, 364

failover techniques in WebSphere, 362

function of, 222 “223

active-standby clustering

typical configuration and function of, 295 “296

active-standby databases

connection timeout settings for failover configuration, 364

failover techniques in WebSphere, 361 “362

function of, 220 “222

Add Counters dialog box

selecting counters in to test and view network errors, 494

selecting disk monitoring options in, 488 “490

administration console

hosted by the deployment manager in WebSphere 5, 73

Administration Repository database

in WebSphere 4, 306

administration server

function of in WebSphere 4, 69

administration service

function of in WebSphere 5, 76

administrative consoles

in WebSphere, 53

administrative functions

in failover techniques in WebSphere, 306

administrative repository

configuration issues, 357 “358

use of in WebSphere 4, 68 “69

administrative services

function of in WebSphere 5, 76

affinity-based routing

types of within the EJB-based server groups, 336

Aged Timeout

setting in JDBC connection pool manager, 444

setting in WebSphere 5, 449 “450

AIM (Apple, IBM, Motorola) consortium

processor designs produced by, 109

AIX. See IBM AIX

AIX swap space command, 480

AIX Unix

Monitor command for memory usage information, 479

AMD AthIon 64 (ClawHammer)

function of, 89

AMD Athlon, Athlon XP, and Athlon MP processors

function of, 87 “89

AMD Duron processor

function of, 87

AMD Opteron

function of, 89 “90

Apache Axis project

open -source series of APIs available from, 74

application architecture

special considerations for protocols or logic, 173

Application Assembly Tool (AAT)

enabling the default EJB caching setting when deploying, 340 “341

application availability

impact of buggy software or unstable hardware on, 239 “240

application binding

failover support for in WebSphere, 359 “360

application database (or databases)

example of a connection to, 359

function of, 62

impact of on a WebSphere environment, 431

application environment

multichannel topologies in, 204 “218

security considerations in, 169 “170

application implementation

example CPU choices, 94

application level

configuring session management in, 327

application server

capacity considerations in multi-Web server, multiapplication server topologies, 208 “209

function of the EJB container within, 61 “62

as key component of WebSphere implementation, 58 “59

steps for accessing the Web container for any, 384 “385

application servers

additional topology considerations, 227 “228

developing high-performance applications for, 395 “410

example of a compartmentalized approach, 228

geographically distributed, 227

location recommendation for WebSphere-to-database networking, 143

vs. server groups, 65

application server topology

additional considerations, 227 “228

applied affinity

used for clients requesting IORs via the LSD, 336

associative referencing

of level 2 cache in UltraSPARC III, 99 “100

ATA (Advanced Technology Attachment), 120 “121

ATA-IDE standard

ratified by ANSI, 120 “121

AthIon 64. See AMD AthIon 64 (ClawHammer)

Athlon processors

function of, 88 “89

Auto-Negotiate or Auto-Sensing configuration

warning about using, 495

availability

as key measure of high-performance computing, 33

understanding your needs for, 46 “47

what it is, 35 “36

availability and scalability

a primer, 34 “43

ten rules to live by, 49

availability matrix

understanding, 39 “40

availability measurements

list of commonly represented and associated downtime, 39

availability, performance, and scalability

costs of, 43 “49

Average value

in Performance tool network utilization output, 496

Axis. See also Apache Axis project

Web Services provided by, 74