changing interconnects SFRAC 4.1 MP1
Our current environment is this Four 2 node clusters Fujitsu Primepower 450s Solaris 9 Generic_118558-19 Oracle 10GR2 Storage Foundation for Oracle Real Application Cluster 4.1 MP1 using DMP ...
Forum Discussion
You can change interconnect configuration on the fly. For instance, if you were to add two links using ce0 and ce1, and your current links are hme0 and hme1, it would work like this:
First node:
lltconfig -t ce0 -d /dev/ce:0 # Add ce0
lltconfig -t ce1 -d /dev/ce:1 # Add ce1
Second node:
lltconfig -t ce0 -d /dev/ce:0 # Add ce0
lltconfig -t ce1 -d /dev/ce:1 # Add ce1
lltconfig -u hme0 # Unconfigure hme0
lltconfig -u hme1 # Unconfigure hme1
First node:
lltconfig -u hme0 # Unconfigure hme0
lltconfig -u hme1 # Unconfigure hme1
Then, update your /etc/llttabs accordingly so that you won't fall back to the old configuration after a reboot.
You can also add SAPs this way, but I don't know the -flag for that. man lltconfig.
CAVEAT 1: I'm sitting at the airport with no access to a man page. The above is from memory, but I have done similar things several times.
CAVEAT 2: I vaguely remember not being able to roll over to ALL NEW interfaces on the fly. Adding IFs worked, removing worked also, but I think I couldn't remove the LAST of the IFs from llttab. You'll have to try if it works in your configuration. Mine was 4.0.
First node:
lltconfig -t ce0 -d /dev/ce:0 # Add ce0
lltconfig -t ce1 -d /dev/ce:1 # Add ce1
Second node:
lltconfig -t ce0 -d /dev/ce:0 # Add ce0
lltconfig -t ce1 -d /dev/ce:1 # Add ce1
lltconfig -u hme0 # Unconfigure hme0
lltconfig -u hme1 # Unconfigure hme1
First node:
lltconfig -u hme0 # Unconfigure hme0
lltconfig -u hme1 # Unconfigure hme1
Then, update your /etc/llttabs accordingly so that you won't fall back to the old configuration after a reboot.
You can also add SAPs this way, but I don't know the -flag for that. man lltconfig.
CAVEAT 1: I'm sitting at the airport with no access to a man page. The above is from memory, but I have done similar things several times.
CAVEAT 2: I vaguely remember not being able to roll over to ALL NEW interfaces on the fly. Adding IFs worked, removing worked also, but I think I couldn't remove the LAST of the IFs from llttab. You'll have to try if it works in your configuration. Mine was 4.0.
