Configuring Load Balancers in High Availability Pairs

The N1 Provisioning Server software supports high availability (HA) load balancer pairs. Configuring load balancers for high availability mode involves two steps:

• Creating a new device type

• Creating a load balancer high availability pair

How to create a new device type

Steps

1. Type devtype -l |grep lb to get the ID of the device type.

   Example

   6 lb - - 0 7 halb - - 0

2. To create a device type for a high availability load balancer pair run:

   devtype -c -n SFB10LB-ha-pair "SFB10LB HA Pair" -b -q none

   Output example:

   Added SFB10LB ha pair, id 25013

3. Set the HAL class for the device type you just created by running

   devtype -s SFB10LB ha pair ID-H com.terraspring.drivers.sun.HighAvailabilitySFB10LB

How to create a high availability load balancer device

Steps

1. To create an instance of a high availability load balancer device run

   device -c SFB10LB ha pair ID-t SFB10LB ha pair

2. To get a list of available load balancers run

   device -l | grep lb

   Example output:

   50103 - FREE - lb:sunfireb10n-299-blade (sunw sunfireb10n) 50115 - FREE - lb:sunfireb10n-299-blade (sunw sunfireb10n)

3. Set the parent for two available load balancer device IDs by running

   device -s -P SFB10LB ha pair ID SFB10LB device ID

   Example:

   device -s -P 50103

   device -s -P SFB10LB ha pair ID lSFB10LB ha pair device ID

   Example:

   device -s -P 50115

4. Set the the HA load balancer pair to a state of FREE by typing

   device -s -F SFB10LB ha pair device ID