GI version: 11.2.0.4
OS : RHEL 6.8
Hypervisor : VMWare ESX
Question1.
I need to install Oracle RAC on RHEL 6.8 on 2-node VMWare VMs.
cluvfy has reported the following warning for Multicasting. I gather that mulicasting is only needed when you use HAIP, a feature introduced in 11.2.0.2.
But, I am using bonded interface for my private network and hence I don't need HAIP. So, can I ignore the below warning and proceed with Grid Infrastructure installation ?
BTW.. cluvfy wrongly assumed that 10.5.167.0 is meant for private network. 10.5.167.0 subnet is actually meant for backups (RMAN).
Private IPs are actually 169.5.51.215 and 169.5.51.216 . The private interfaces are connected to a 1Gb switch.
Question2.
What is the reason for the error in red below "not able to communicate with.... the private interfaces 169.5.51.215 and 169.5.51.216 ?
Below, I am providing the excerpt from cluvfy and /etc/hosts file contents
1. Excerpt from cluvfy
Interfaces found on subnet "10.5.167.0" that are likely candidates for a private interconnect are:
apacwmsdb01 eth10:10.5.167.181
apacwmsdb02 eth12:10.5.167.182
WARNING:
Could not find a suitable set of interfaces for VIPs
WARNING:
Could not find a suitable set of interfaces with the same name for the private interconnect
Checking subnet mask consistency...
Subnet mask consistency check passed for subnet "10.5.167.0".
Subnet mask consistency check passed for subnet "10.5.148.0".
Subnet mask consistency check passed for subnet "169.5.51.0".
Subnet mask consistency check passed.
Result: Node connectivity check passed
Checking multicast communication...
Checking subnet "10.5.167.0" for multicast communication with multicast group "230.0.1.0"...
Check of subnet "10.5.167.0" for multicast communication with multicast group "230.0.1.0" passed.
Checking subnet "10.5.148.0" for multicast communication with multicast group "230.0.1.0"...
PRVG-11134 : Interface "10.5.148.38" on node "apacwmsdb01" is not able to communicate with interface "10.5.148.39" on node "apacwmsdb02"
Checking subnet "10.5.148.0" for multicast communication with multicast group "224.0.0.251"...
Check of subnet "10.5.148.0" for multicast communication with multicast group "224.0.0.251" passed.
Checking subnet "169.5.51.0" for multicast communication with multicast group "230.0.1.0"...
PRVG-11134 : Interface "169.5.51.215" on node "apacwmsdb01" is not able to communicate with interface "169.5.51.216" on node "apacwmsdb02"
PRVG-11134 : Interface "169.5.51.216" on node "apacwmsdb02" is not able to communicate with interface "169.5.51.215" on node "apacwmsdb01"
Checking subnet "169.5.51.0" for multicast communication with multicast group "224.0.0.251"...
Check of subnet "169.5.51.0" for multicast communication with multicast group "224.0.0.251" passed.
Check of multicast communication passed.
2. Following are the contents of /etc/hosts
####### Public IP ###############
10.5.148.38 apacwmsdb01.domain.net apacwmsdb01
10.5.148.39 apacwmsdb02.domain.net apacwmsdb02
##### Virtual IP ##############
10.5.148.50 apacwmsdb01-vip.domain.net apacwmsdb01-vip
10.5.148.51 apacwmsdb02-vip.domain.net apacwmsdb02-vip
#### Private IP ###############
169.5.51.215 apacwmsdb01-priv.domain.net apacwmsdb01-priv
169.5.51.216 apacwmsdb02-priv.domain.net apacwmsdb02-priv