Dell 3-DNS Spezifikationen PDF herunterladen (Seite 97)

100

101

Pools

BIG-IP® Reference Guide 4-17

• Associating the health check monitor with the server to gather the

metrics

• Creating or modifying the server pool to use Dynamic Ratio load

balancing

BIG-IP provides two templates that you can use to create a health monitor

for a server that uses an SNMP agent. These two monitor templates are:

• snmp_dca

Use this template when you want to use default values or specify new

values for CPU, memory, and disk metrics. When using this template,

you can also specify values for other types of metrics that you wish to

gather.

• snmp_dca_base

Use this template when you want to use default values or specify values

for metrics other than CPU, memory, and disk usage. When using this

template, values for CPU, memory, and disk metrics are omitted.

Note

For a description of these templates and the default values for each metric,

see Working with templates for EAV monitors, on page 4-142.

Figure 4.4 shows a monitor based on the snmp_dca monitor template. This

monitor uses the default metric values. A user can optionally specify

variables for user-defined metrics.

monitor my_snmp_dca

’{ use snmp_dca

interval 10

timeout 30

dest *:161

agent_type "UCD"

cpu_coefficient "1.5"

cpu_threshold "80"

mem_coefficient "1.0"

mem_threshold "70"

disk_coefficient "2.0"

disk_threshold "90"

USEROID ""

USEROID_COEFFICIENT "1.0"

USEROID_THRESHOLD "90"

}’

Figure 4.4 A monitor based on the snmp_dca template

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