Configure Five Applications with Different Characteristics

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The following example configures five applications with different characteristics.

Table 8-1 Target Applications and Characteristics

Application Type and Name	Characteristics
Application server, `app_server`.	Negative scalability beyond two CPUs. Assign a two-CPU processor set to `app_server`. Use TS scheduling class.
Database instance, `app_db`.	Heavily multithreaded. Use FSS scheduling class.
Test and development, `development`.	Motif based. Hosts untested code execution. Interactive scheduling class ensures user interface responsiveness. Use `process.max-address-space` to impose memory limitations and minimize the effects of antisocial processing.
Transaction processing engine, `tp_engine`.	Response time is paramount. Assign a dedicated set of at least two CPUs to ensure response latency is kept to a minimum. Use timeshare scheduling class.
Standalone database instance, `geo_db`.	Heavily multithreaded. Serves multiple time zones. Use FSS scheduling class.

Note - Consolidate database applications (app.db and geo_db) onto a single processor set of at least four CPUs. Use FSS scheduling class. Application app_db gets 25% of the project.cpu-shares. Application geo_db gets 75% of the project.cpu-shares.

Edit the /etc/project file. Map users to resource pools for the app_server, app_db, development, tp_engine, and geo_db project entries.

hostname# cat /etc/project

.
.
.
user.app_server:2001:Production Application Server::
     project.pool=appserver_pool
user.app_db:2002:App Server DB:::project.pool=db_pool,
     project.cpu-shares=(privileged,1,deny)
development:2003:Test and delopment::staff:project.pool=dev.pool,
     process.max-addressspace=(privileged,536870912,deny)
user.tp_engine:Transaction Engine:::project.pool=tp_pool
user.geo_db:EDI DB:::project.pool=db_pool;
     project.cpu-shares=(privileged,3,deny)

Note - The line break in the lines that begin with “project.pool” , “project.cpu-shares=”, “process.max-addressspace”, and “project.cpu-shares=” is not valid in a project file. The line breaks are shown here only to allow the example to display on a printed or displayed page. Each entry must be on one and only one line.

Create the pool.host script and add entries for resource pools.

hostname# cat pool.host

create system host
create pset dev_pset (uint pset.max = 2)
create pset tp_pset (uint pset.min = 2; uint pset.max = 2)
create pset db_pset (uint pset.min = 4; uint pset.max = 6)
create pset app_pset (uint pset.min = 1; uint pset.max = 2)
create pool dev_pool (string pool.scheduler="IA")
create pool appserver_pool (string pool.scheduler="TS")
create pool db_pool (string pool.scheduler="FSS")
create pool tp_pool (string pool.scheduler="TS")
associate pool pool_default (pset pset_default)
associate pool dev_pool (pset dev_pset)
associate pool appserver_pool (pset app_pset)
associate pool db_pool (pset db_pset)
associate pool tp_pool (pset tp_pset)

Run the pool.host script and modify the configuration as specified in the pool.host file.

hostname# poolcfg -f pool.host

Read the pool.host resource pool configuration file and initialize the resource pools on the system.

hostname# pooladm -c