Maximizing Performance and Scalability with IBM WebSphere
U
UCB ps. See Berkeley ps
UDDI Registry
function of in WebSphere 5, 74
UFS. See Unix File System (UFS)
Ultra Port Architecture (UPA)-connected bus, 98
Ultra160 and Ultra320 SCSI technologies
function of, 122
Ultra320 and Ultra160 SCSI technologies
function of, 122
UltraSPARC CPUs
most commonly found models, 96
UltraSPARC II
architecture and function of, 97 “98
best-use model for, 102
UltraSPARC IIe
architecture and function of, 99
best-use model for, 103
UltraSPARC IIi
best-use model for, 102 “103
UltraSPARC III
best-use model for, 103
key components of, 100
UltraSPARC IIi
vs. Sun UltraSPARC III, 99
vs. UltraSPARC II, 98
UltraSPARC III
vs. UltraSPARC IIi, 99
UltraSPARC IIIi
architecture and function of, 102
best-use model for, 103 “104
Unix
monitoring network performance in, 490
monitoring network utilization in, 490 “493
Unix CPU and system load
key load and performance identifiers, 475 “481
Unix File System (UFS), 435
Unix file systems
disk layout approaches in a WebSphere environment, 273 “275
Unix memory analysis
for determining real and swap memory usage, 478 “480
Unix ps command
for getting a list of top processes running, 479 “480
Unix servers
determining memory usage on, 478 “480
getting garbage collection information from log files on, 250
monitoring disk I/O for, 485 “487
using vmstat command to find load average in, 476 “478
Unused Timeout
setting in JDBC connection pool manager, 444
setting in WebSphere 5, 449 “450
uptime command
getting a server load rating with, 475 “476
UriGroup directive declaration
section of the HTTP plug-in configuration file, 57
URL context
of the HTTP plug-in configuration file, 57
URL rewriting
session management with, 328
USB disk technology
function and future of, 129 “130
user application data sources and databases
supported by WebSphere, 358 “362
user capacity
handling requests for additional, 18 “19
user experience monitors
monitoring and testing applications with, 241
user load
effect of on response times, 236 “238
utility network
function of, 164
utility tier servers, 119
utlbstat tool
for Oracle performance monitoring, 438
utlestat tool
for Oracle performance monitoring, 438