IBM 150 Manual De Usuario

RS/6000 43P 7043 Models 150 and 260 Handbook

When the installation of the backup has finished, the installation program 
reconfigures the Object Data Manager (ODM) on the target system. If the 
target system does not have exactly the same hardware configuration as the 
source system, the program may modify device attributes in the following 
target system files:

  • All files in the /etc/objrepos file beginning with the letters CU

  • All files in the /dev directory

The data restored from the mksysb-tape will only be the data from the rootvg 
volume group. If you want to restore data from a non-root volume group you 
have to run the 

restorevg

 command or use SMIT fastpath 

smit restvg

.

Although the 

mksysb

 command will create a bootable tape on the PCI-based 

RS/6000 servers, the tapes will not boot on Micro Channel-based 
uni-processor or Micro Channel-based symmetric multiprocessor machines. 
Additionally,

 mksysb

 tapes created on Micro Channel-based uni-processor and 

Micro Channel-based symmetric multiprocessor machines will not boot on 
PCI-based machines.

This section also covers AIX 4.1 since there are many customers still using 
AIX 4.1.

The term cloning describes the installation of a system backup (created with 
the 

mksysb

 command on one system) on different systems in order to make 

the software configuration of all systems as identical as possible. Using a 
backup of one machine to install several other machines can be very useful 
and will save the time taken to perform multiple installations.

8.3.4.1  Cloning on AIX 4.1
AIX 4.1 has been packaged so that only the devices that are needed are 
actually installed on the system. This has made the cloning process difficult.

In AIX 4.1, the devices is separated from the base in separate filesets,

 

devices.*

 (such as devices.scsi.disk). This, coupled with all the new hardware 

When cloning systems, please keep in mind that you will also clone IP 
addresses. If both machines are connected to the network at the same 
time, this will cause problems on the network. In this case, you have to 
comment the tcpip entry in the /etc/inittab file.