IBM RS/6000 SP, Руководство по определению проблем

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C.3 Procedures Used When Changing IP Addresses/Hostnames
The changing of an IP address or hostname for a RS/6000 SP node and CW will
follow the same procedures, except that the Control Workstation will include
additional network and RS/6000 SP configuration steps.
You will need to update PSSP files and interfaces on the RS/6000 SP nodes. You
will need to update the “en0” network interface on each RS/6000 SP node that
has IP address, domain, or hostname changes. You will need to know the new
selected IP addresses and hostnames being used by the RS/6000 SP nodes,
Control Workstation, and gateway servers. This is required so that the RS/6000
SP node will properly communicate to the Control Workstation during the reboot
activity. It will be necessary to do this activity manually for each RS/6000 SP
node.
You will need to work on the Control Workstation and make the necessary
changes to the System Data Repository (SDR). This includes updates to reset
PSSP daemons, and system partitions (syspar) files. You need to update files on
the Control Workstation to reflect the new hostnames and IP addresses. During
this activity, the RS/6000 SP system should not be available to users. The
RS/6000 SP system is not ready until the RS/6000 SP nodes reference the new IP
address/hostname changes.
You will need to set the boot response to
customize
and then execute a
reboot
for
the RS/6000 SP nodes. After the RS/6000 SP nodes have completed the reboot
and customized, you should verify that the files on RS/6000 SP nodes reflect the
new IP address/hostname changes.
The added Install support in AIX 4.1 for NIM requires the admin user to replace
the NIM master objects. It may be necessary to update the NIM network and
machine resources to match the new IP address or hostname. The NIM updates
will be needed for the CWS and bootserver nodes.
If you had previously used System Partitioning on your RS/6000 SP system, it will
be necessary to re-execute the system partition steps on your system. This will
allow the necessary syspar config files to reflect any changes.
C.4 Updating the RS/6000 SP Node Interfaces
The following RS/6000 SP node updates need to be made on every RS/6000 SP
node prior to updates made to the Control Workstation (CW).
1. Updating the RS/6000 SP node “ e n 0 ” Interface
You now need to update the “en0” interface on each RS/6000 SP node to
allow the proper communication paths between the RS/6000 SP node and the
Control Workstation. You need to change the en0 interface to the new IP
address/hostname. You will also supply the proper gateway and route
information for the en0 adapter. You do not need to modify any other
adapter interfaces on the RS/6000 SP node. To accomplish this task you
should use the
mktcpip
command. This can be executed through
smit
mktcpip or the mktcpip command on each RS/6000 SP node.
The following are examples of using the
mktcpip
command.
mktcpip -h <new node hostname> -a <new node IP addr> -m <subnet mask> \
-i en0 -n <name server> -d <domain> -g <gateway IP addr> -t N/A
Appendix C. IP Address and Hostname Changes for the SP
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