When you're using AIX 7.1 (this is a new command for 7.1). If you had the following scenario:
node1: hdisk0, hdisk1, hdisk2 (private)
node2: hdisk0 (private)
And you add 2 shared disks - at first you would have:
node1: hdisk0, hdisk1, hdisk2 (private)
hdisk3, hdisk4, hdisk5 (shared)
node2: hdisk0 (private)
hdisk1, hdisk2, hdisk3 (shared)
You could do the following on node2:
rendev -l hdisk3 -n hdisk5 (now node2 has hdisk1, hdisk2, hdisk5)
rendev -l hdisk2 -n hdisk4 (now node2 has hdisk1, hdisk4, hdisk5)
rednev -l hdisk1 -n hdisk3 (now node2 has hdisk3, hdisk4, hdisk5)
Note the order in which I did it - because since node2 has an hdisk3 to start, I rename that one first.
node1: hdisk0, hdisk1, hdisk2 (private)
node2: hdisk0 (private)
And you add 2 shared disks - at first you would have:
node1: hdisk0, hdisk1, hdisk2 (private)
hdisk3, hdisk4, hdisk5 (shared)
node2: hdisk0 (private)
hdisk1, hdisk2, hdisk3 (shared)
You could do the following on node2:
rendev -l hdisk3 -n hdisk5 (now node2 has hdisk1, hdisk2, hdisk5)
rendev -l hdisk2 -n hdisk4 (now node2 has hdisk1, hdisk4, hdisk5)
rednev -l hdisk1 -n hdisk3 (now node2 has hdisk3, hdisk4, hdisk5)
Note the order in which I did it - because since node2 has an hdisk3 to start, I rename that one first.
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