Dear Managers,
We have a very strange scenario at the moment with consistent
Netpartitioning occurring, on a cluster of 2 ES40s running 4.0f PK3, and ASE
1.6.
Each ES40 has 4 network cards, 2 combi cards which are configured to be the
main network interface, and heartbeat LAN, and 2 standard 10/100BaseT
Ethernet cards which will be configured as point to point links to an
external black box being used for encryption.
When only the main network cards are configured, with ASE having the
heartbeat LAN as its primary network, and the main network connection as
it's backup, (the backup is monitored) everything runs very smoothly. In
fact any set-up with these networks and ASE behaves impeccably.
However, as soon as I configure a third interface on either side, ASE net
partitions, which means a failure of both the ASE primary and backup
networks. In this state though, it is still possible to ping the heatbeat
LAN, and the main network from both sides of the cluster. ie from dectest2 I
can still ping dectest1 and hdectest1 and from dectest1 I can ping dectest2
and hdectest2
The Addressing on the interfaces are as follows;
Dectest1
interface: address : subnetmask : name :usage
tu0 : 10.245.40.34 : 255.255.240.0 : hdectest1 : ASE primary network,
heatbeat LAN.
tu1 : 10.33.49.22 : 255.255.240.0 : dectest1 : ASE backup
network, monitored. Main Network
tu2 : 10.245.1.57 : 255.255.255.252: dt1ra : Point to
point connection to black box 10.245.1.58
tu3 : 10.245.1.61 : 255.255.255.252: dt1rb : Point to
point connection to black box 10.245.1.62
Dectest2
interface: address : subnetmask : name :usage
tu0 : 10.245.40.35 : 255.255.240.0 : hdectest2 : ASE primary network,
heatbeat LAN.
tu1 : 10.33.49.23 : 255.255.240.0 : dectest2 : ASE backup network,
monitored. Main Network
tu2 : 10.245.1.65 : 255.255.255.252: dt2ra : Point to
point connection to black box 10.245.1.66
tu3 : 10.245.1.69 : 255.255.255.252: dt2rb : Point to
point connection to black box 10.245.1.70
Like I said, as soon as I configure tu2 and/or tu3 on either side of the
cluster, and restart the network, or reboot then ASE Netpartitions. As soon
as I delete these cards, then ASE starts behaving again, (I don't have to
restart the network).
Compaq have been looking at this, and so far to no avail. Although they have
said that there shouldn't be anything wrong with this configuration.....
I hope you can help,
Yours,
Charlotte Barsby
Technical Projects
Vodafone LTD
Received on Wed Apr 12 2000 - 09:33:31 NZST