topic package querry in Operating System - HP-UX

package querry

Rushank — Thu, 29 Aug 2002 14:42:49 GMT

Continuing on my previous querry.
Env : Two node Cluster.one Package runs on each box.

Package-Ip is on main subnet. Standby LAN is also on main subnet. Say subnet 2.

I configured a additional lan port(lan 2) on each node and connected them on a separate VLAN ( say 100.100)
Now cluster or package does not have any configuration about this new subnet or IP address. But in the /etc/hosts and on DNS I've redirected Package-name to this new private VLAN, package-IP have new IP-address only in hosts file but not in cluster configuration files.
Cluster and package are running fine with this new setup I also tried to run both package on one box without any problem. Lan3 is standby lan. lan0 is/was primary lan

*If suppose My VLAN fails, does service guard failover to laon0 or lan3 ??
*Does it fails over or not?
* Is this OK if I run my cluster with current setup. ( not making any changes in cluster configureation files but change ip address for package in hosts file)

Any answer would be a great help

Thx.

Re: package querry

Stephen Doud — Thu, 29 Aug 2002 19:17:31 GMT

Hello Rushank,

ServiceGuard will NOT perform the standby LAN failure function for a lan that is not configured in the cluster binary file. This means that SG won't see lan2 failures until lan2 is configured in the cluster.

Once lan2 is added to the cluster ASCII configuration file properly, and cmapplyconf performed, lan3 can perform the standby LAN failure function for both lan0 and lan2 if they are of the same lan type and on the same physical network.

-s.

Re: package querry

Rushank — Thu, 29 Aug 2002 19:31:03 GMT

Thanks,

I tried physically disconnecting cable (private 100..) package was up and running on respective boxes.

then I disconnected the cable from lan 0 still every thing was OK!

I halted a node package failed over to next node.

And cluster configuration files still does not have any information about 100.100.100.0 network. only /etc/hosts file have this information

Only thing I could not findout is what network service guard use for package information.