OK. Some basics for checking.
On the hmc use the command lspartition to see which partitions the HMC considers suitable for DLPAR operations.
The main command we are interested in is:
lspartition -dlparI also excute the following command when I am not satisfied with the output - i.e. I feel it is missing systems.
lspartition -sfpThe first command lists partitions the HMC considers are DLPAR capable, the second lists systems that are considered capable of supplying the Service Focal Point (sfp) with data.
hscroot@hmc1:~> lspartition -dlpar
<#0> Partition:<1*9111-520*65CXXXX, vio1.abc.com, 10.24.23.100>
Active:<1>, OS:<AIX, 5.3>, DCaps:<0x3f>, CmdCaps:<0xb, 0xb>, PinnedMem:<185>
<#1> Partition:<2*9111-520*65CXXXX, p101.abc.com, 10.24.23.101>
Active:<1>, OS:<AIX, 5.3>, DCaps:<0x3f>, CmdCaps:<0xb, 0xb>, PinnedMem:<128>
<#2> Partition:<6*9111-520*65CXXXX, p105.abc.com, 10.24.23.105>
Active:<1>, OS:<AIX, 5.3>, DCaps:<0x3f>, CmdCaps:<0xb, 0xb>, PinnedMem:<128>
If your system does not show up in either system, go to your partition and/or top the hmc and verify that your network connectivity is working. If they cannot communicate with each other (partition IP, HMC IP) DLPAR is not possible.
Hope this helps!
Michael