HP Traffic Director sa7220 - Manual (Page 40)

C H A P T E R 2 HP Traffic Director Server Appliances User Guide
28
Prioritization
and Policy
Groups Policy groups are containers used to organize services. Service
prioritization uses policy group information to make decisions about
which services should get more or less server resources. Although the
assignment of services to policy groups can be arbitrarily determined
by the operator, effective use requires that each policy group contain
services related by their shared use of server resources. Services and
servers are assigned to Policy Groups at their time of creation.
Policy group management commands are listed below:
config policygroup create
config policygroup delete
config policygroup throttle [enable |
disable]
The policy group framework allows the prioritization of categories of
client requests. Each service defined in a policy group is assigned a
priority within that group and a target response time. When the
average response time of a service exceeds its target response time,
that service is allocated, on the basis of its priority, a greater share of
common server resources to attempt to bring response time back
within the target range (this assumes that the throttling option is
enabled for the policy group).
Target Response Time Satisfied
SA8220
VIP: 10.2.2.4
HTTPS: 10 ms
HTTP: 10 ms
Server 1:
HTTP Server 2:
HTTPS Server 3:
HTTP/HTTPS