Cluster Server 7.3.1 Administrator's Guide - Linux

DR across AWS regions or VPCs and from on-premises to AWS

InfoScale Enterprise lets you use the global cluster option (GCO) for DR configurations. You can use a DR configuration to fail over applications across different regions or VPCs in AWS. The cluster nodes can be in the same AZ or in different AZs.

You can also use GCO to configure applications for DR from an on-premises site to AWS.

The following graphic depicts a sample DR configuration across AWS regions:

The following snippet is a service group configuration from a sample VCS configuration file (main.cf) at the primary site (Region A):

include "types.cf"

cluster sitever (
 	ClusterAddress = "172.32.1.2"
  SecureClus = 1
	 )

remotecluster sitecal (
 	ClusterAddress = "172.35.1.2"
 	ConnectTimeout = 3000
 	SocketTimeout = 3000
 	)

heartbeat Icmp (
 	ClusterList = { sitecal }
 	Arguments @sitecal = { "172.35.1.2" }
	 )

system ip-172-31-21-156 (
 	)

system ip-172-31-61-106 (
	 )

group ClusterService (
 	SystemList = { ip-172-31-21-156 = 0, ip-172-31-61-106 = 1 }
  AutoStartList = { ip-172-31-21-156, ip-172-31-61-106 }
 	OnlineRetryLimit = 3
 	OnlineRetryInterval = 120
 	)

	AWSIP Aws_Ipres (
 		OverlayIP = "172.32.1.2/32"
 		Device = eth0
 		AWSBinDir = "/usr/local/bin"
 		)

	Application wac (
	 	StartProgram = "/opt/VRTSvcs/bin/wacstart -secure"
 		StopProgram = "/opt/VRTSvcs/bin/wacstop"
	 	MonitorProcesses = { "/opt/VRTSvcs/bin/wac -secure" }
 		RestartLimit = 3
 		)

	IP Ipres (
	 	Device = eth0
 		Address = "172.32.1.2"
 		NetMask = "255.255.255.0"
 		)

	NIC gconic (
	 	Device = eth0
 		)

	Aws_Ipres requires Ipres
	Ipres requires gconic
	wac requires Ipres

The following snippet is a service group configuration from a sample VCS configuration file (main.cf) at the secondary site (Region B):

include "types.cf"

cluster sitecal (
		ClusterAddress = "172.35.1.2"
		SecureClus = 1
		)

remotecluster sitever (
		ClusterAddress = "172.32.1.2"
		ConnectTimeout = 3000
		SocketTimeout = 3000
		)

heartbeat Icmp (
		ClusterList = { sitever }
		Arguments @sitever = { "172.32.1.2" }
		)

system ip-172-34-20-109 (
		)

system ip-172-34-30-231 (
		)

group ClusterService (
		SystemList = { ip-172-34-20-109 = 0, ip-172-34-30-231 = 1 }
		AutoStartList = { ip-172-34-20-109, ip-172-34-30-231 }
		OnlineRetryLimit = 3
		OnlineRetryInterval = 120
		)

AWSIP Aws_Ipres (
		OverlayIP = "172.35.1.2/32"
		Device = eth0
		AWSBinDir = "/usr/local/bin"
		)

Application wac (
		StartProgram = "/opt/VRTSvcs/bin/wacstart -secure"
		StopProgram = "/opt/VRTSvcs/bin/wacstop"
		MonitorProcesses = { "/opt/VRTSvcs/bin/wac -secure" }
		RestartLimit = 3
		)

IP Ipres (
		Device = eth0
		Address = "172.35.1.2"
		NetMask = "255.255.255.0"
		)

NIC gconic (
		Device = eth0
		)

Aws_Ipres requires Ipres
Ipres requires gconic
wac requires Ipres