Forum Discussion
Mark_58017
Nimbostratus
Aug 07, 2013Dynamic Ratio Load Balancing
Hi,
We have an API that automatically inserts servers into a load balanced pool. The pool uses dynamic load balancing and the permanent servers in there have WMI monitors which seem to be worki...
nitass
Employee
Aug 07, 2013I cannot ascertain what ratio the servers without WMI have been given. i understand it is 1.
The node is not returning SNMP data in the correct format. If the BIG-IP system cannot interpret the data returned by the SNMP DCA monitor, it sets the weight of the node to 1.sol9125: Overview of Dynamic Ratio load balancing
http://support.f5.com/kb/en-us/solutions/public/9000/100/sol9125.html
e.g.
200.200.200.101 is linux without wmi agent, 200.200.200.103 is windows 2003 with wmi agent
root@(ve11a)(cfg-sync Changes Pending)(Active)(/Common)(tmos) list ltm node
ltm node 200.200.200.101 {
address 200.200.200.101
monitor mywmi
session monitor-enabled
state up
}
ltm node 200.200.200.103 {
address 200.200.200.103
dynamic-ratio 113
monitor mywmi
session monitor-enabled
state up
}
root@(ve11a)(cfg-sync Changes Pending)(Active)(/Common)(tmos) list ltm monitor wmi mywmi
ltm monitor wmi mywmi {
agent "Mozilla/4.0 (compatible: MSIE 5.0; Windows NT)"
command "GetCPUInfo, GetDiskInfo, GetOSInfo"
defaults-from wmi
interval 5
method POST
metrics "LoadPercentage, DiskUsage, PhysicalMemoryUsage:1.5, VirtualMemoryUsage:2.0"
password password
post RespFormat=HTML
time-until-up 0
timeout 16
url /scripts/F5Isapi.dll
username administrator
}
root@(ve11a)(cfg-sync Changes Pending)(Active)(/Common)(tmos) list ltm node dynamic-ratio
ltm node 200.200.200.101 {
dynamic-ratio 1
}
ltm node 200.200.200.103 {
dynamic-ratio 113
}
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