•All RS/6000 SP nodes with a version less than PSSP 2.3 in the partition need to maintain the right level of fixes (PTFs) in order for coexistence with PSSP 2.4 to take place.
•The ssp.spmgr file set must be installed on the Control Workstation.
•Because the SP Switch router adapter will only work with the
•There must be at least one free SP Switch port to install the SP Switch router adapter.
Important
When the Primary switch node fails, the Primary Backup Switch node take over as the new Primary switch node. The new Primary Backup switch node, selected from the current partition, can be a node with a PSSP level below 2.3, even though another node with a PSSP level of 2.3 or higher may exist in that partition. The only way to ensure that the new Backup switch node is at PSSP 2.3 or higher is to manually check the RS/6000 SP system. If the PSSP Version of the Primary Backup switch node is below Version 2.3 you have to chose a node with PSSP 2.3 or higher as the Primary Backup switch node.
If a node running a version of PSSP earlier then 2.3 is selected as the new primary node, the SP Switch Router Adapter will be fenced from the switch.
