AIX - NIM - Type d'installation

rte

This will be either a Migration, Preservation, or New and Complete Overwrite install.

mksysb --> doit être associé au SPOT

This will be taking a mksysb image and either restoring it back to the system it came from or cloning that image to another system.
* A common problem when running a mksysb install is attempting to use a SPOT that is at a lower level than your mksysb image. NIM has a built in check now and will warn you if you are attempting to use a lower level SPOT, however it is a good idea to make it a habit to check this yourself.

SPOT

This is a very rarely used installation method. By doing this you take the SPOT that you are using for the installation, and copy it over. If you do not have the proper device support in your SPOT, the installation will complete, but the system will not boot.
*I will not be reviewing SPOT installs as they are so rarely used, however after going through the next section, you should have no problem setting one up should you wish to do so.

update_all

The last installation type we’ll cover is the update_all. This can be used to update a master, client. or SPOT with individual APARs, technology levels, or service packs.
Most commonly you will use your lpp_source resource to run an update_all to a NIM client that is at a lower technology level. In this case you do not need a matching SPOT resource, as there is no initial boot required of the client. The master simply NFS mounts over the lpp_source location to the client which ends up running his own update_all operation.

*In all cases, it is always recommended to verify that your target system is up at the latest level of firmware before running any of these installations. Trust me, this isn’t one of those, “eh I hate updating firmware, I’ll just skip it this time” sorts of situations. This is a “seriously....make sure your firmware is up to the latest level” situations.
Below is the firmware download site. Instructions on installing the firmware are also found by clicking through to your firmware level.
FixCentral Firmware Download
http://www-933.ibm.com/support/fixcentral/

If planning to run an update_all to either your NIM master or a client machine you should refer to the DCF document Updating to a New Technology Level or Service Pack to go through recommended pre/post checks.
You can also use the search function at the DCF site to run a search for the document by using the same name.