topic the sg interface working mode in Operating System - HP-UX

the sg interface working mode

singvey — Wed, 27 Jul 2005 21:39:20 GMT

Is the following right??
the interface in cluster configuration has the three working mode:
a.heartbeat interface
can work as heartbeat interface send heartbeat information ; can also work as data interface which will send data information
b.stationary interface
can only work as data interface with service.
c.interface with none configuration
NETWORK_INTERFACE lan2
can only work as failover interface when the data interface fails on the same host and the floating ip address will flow to the lan2

I have another question:
first I give the following lines
NODE_NAME oradb2
NETWORK_INTERFACE lan0
HEARTBEAT_IP 192.168.1.2
NETWORK_INTERFACE lan1
STATIONARY_IP 10.49.14.95
NETWORK_INTERFACE lan2

the interface lan2 is the lan1's failover interface .

if I change the lan2 location following lan0
NODE_NAME oradb2
NETWORK_INTERFACE lan0
HEARTBEAT_IP 192.168.1.2
NETWORK_INTERFACE lan2
NETWORK_INTERFACE lan1
STATIONARY_IP 10.49.14.95

my question is : if I configure the lan2 follows the heartbeat interface lan0,now how the interface lan2 works as ????

Re: the sg interface working mode

Kent Ostby — Wed, 27 Jul 2005 23:38:56 GMT

The answer to part one is Yes that is true.

The answer to part two is Yes that is true.

The answer to part three is that lan2 would be the failover for lan0.

All of the above ASSUMES that the subnetting is correct for lan2 to function as a failover.

Re: the sg interface working mode

singvey — Thu, 28 Jul 2005 01:41:08 GMT

kent ostby:
thank you!
Maybe I do not describe my qestion,I show you again the last part question!!!!

1.interface with none configuration
NETWORK_INTERFACE lan2
what is the lan2 function???

2.I give the following lines
NODE_NAME oradb2
NETWORK_INTERFACE lan0
HEARTBEAT_IP 192.168.1.2
NETWORK_INTERFACE lan1
STATIONARY_IP 10.49.14.95
NETWORK_INTERFACE lan2

what is the function of interface lan2???
what is the relationship among lan0,lan1,lan2???

3.I give the lan2 location following lan0
NODE_NAME oradb2
NETWORK_INTERFACE lan0
HEARTBEAT_IP 192.168.1.2
NETWORK_INTERFACE lan2
NETWORK_INTERFACE lan1
STATIONARY_IP 10.49.14.95
what is the function of interface lan2???
what is the relationship among lan0,lan1,lan2???

thank you very much!!!!

Re: the sg interface working mode

Bharat Katkar — Thu, 28 Jul 2005 03:15:02 GMT

can u attach /etc/cmcluster/cmclconf.ascii file if you don't mind.
Everything will be cleared looking at the file.
Regards,

Re: the sg interface working mode

melvyn burnard — Thu, 28 Jul 2005 04:03:21 GMT

The placing of the lan line has no relevance.
What is needed for a lan to be a standby is that a configured lan (e.g. lan1) MUST be able to communicate to lan2 via the physical cabling out to a switch and back again.
If you wish lan0 to be able to use lan2, it must be able to do the same communication.

cmquerycl, when creating the cluster ascii file, checks all of this, and will place comments BELOW the node entries telling you which lan card has a standby, if any.

Once again, I strongly recommend you read the Managing Serviceguard manual.
Also be aware it is no longer called MC/ServiceGuard, it is now just Serviceguard

Re: the sg interface working mode

singvey — Thu, 28 Jul 2005 20:15:40 GMT

I will read the sg manager manual