hi

2 nodes RAC on AIX instance and CRS version 10.1.0.3

We have a setup where we are independent of the VIP adresses for production use.

We had an incedent where 1switch failed where both VIP adresses is connected, not smart but true.

I observed this from syslog :

CRS tries 3 times to move each VIP adress to the other side.

>> ifconfig delete and alias commands <<

This happendend on both sides.

When this didnt work ( hardware malfunction on switch ) shutdown started on plab2

>>
Mon Mar 13 13:26:36 2006
Shutting down instance: further logons disabled

...

Mon Mar 13 13:26:39 2006
Shutting down instance (transactional local)

...
Mon Mar 13 13:26:55 2006
Reconfiguration started (old inc 2, new inc 3)
List of nodes:
 1
 Global Resource Directory frozen
  ;* dead instance detected - domain 0 invalid = TRUE
 Update rdomain variables
 Communication channels reestablished
 Master broadcasted resource hash value bitmaps
 Non-local Process blocks cleaned out
Mon Mar 13 13:26:55 2006
<<

so before this shutdown complete before plab1 started and completed shutdown :

>>

Mon Mar 13 13:26:43 2006
Shutting down instance: further logons disabled

...

Mon Mar 13 13:26:50 2006
ALTER DATABASE DISMOUNT
Completed: ALTER DATABASE DISMOUNT
<<

is it expected behaveoir that both sides shutdown ? is the reason for the shutdown the missing VIP's ?

Where do I see if CRS has detected that the interconnect was down ?

Thanks In advance

SteenB, Denmark