Maximizing Performance and Scalability with IBM WebSphere

F

F4800 servers

choosing for medium production environments, 106 “107

F6800 servers

choosing for medium production environments, 106 “107

fabric controller

shared by IBM Power4 processor cores, 113

failover and high availability considerations

in WebSphere, 291 “342

failover techniques with WebSphere, 301 “307

administrative functions, 306

database server tier , 305 “306

EJB container, 304 “305

network components , 306 “307

Web container, 304

Web server tier/HTTP servers, 303 “304

failover types

in Oracle Transparent Application Failover, 368

failovers. See EJB container failover

Fast Ethernet vs. Gigabit Ethernet, 164

FCAL-based storage systems. See Fibre Channel Arbitrated Loop (FCAL)-based storage systems

federated API view, 371

Fibre Channel Arbitrated Loop (FCAL)-based storage systems

architecture, 127

costs of vs. other SCSI technologies, 127

function of, 126 “128

file system types

supported by Oracle and DB2, 435

FIN_WAIT_2 state

command for viewing current settings, 263

problems with Sun Solaris WebSphere-based applications, 263

findByPrimaryKey(primary_key) call

searching a database for a particular row with, 415

Fireplane

function of in Sun SPARC platform, 145 “146

Fireplane crossbar

function of, 101

firewall and load balancing environment

other considerations for, 355 “356

firewall devices

hardware based, 353

firewall environment

network diagram of, 167

reasons for housing static content on the frontend, 170

thin Web server configuration, 168

firewall location

in relation to backend application and database server, 170 “172

firewall rules

to consider before opting for thin or thick Web server, 166 “169

firewall topology

example of 3-tier, 169

firewalls

as critical components of business systems, 352 “353

example showing overhead associated with, 167

importance of having backups for, 353 “354

FireWire disk technology

function and future of, 129 “130

formula

for figuring overhead when adding JVMs to environments, 186

four-processor systems

function of, 101

Front Side Bus (FSB)

in Intel Pentium 4 processors, 85

frontend Web servers

in multiapplication JVM, dual Web server, single application server topology, 201 “202

funnel, or carrot -shaped, model

of correctly configured WebSphere application environment, 29 “30