Dynamically move the resource from one lpar to another

To remove Tape Drive :

Step 1 )
Go to Lpar to whom its assigned
rmdev –dl rmt0
lsdev –Cl cd0 –F Parent
ide0
lsslot –c slot –l ide0
slot no T12 pci2 ide0
rmdev –l pci2 –R ( R – to remove child process too)
cd0 defined
ide0 defined
pci2 defined
or
rmdev –l pci2
rmdev –l ide0

Go to Lpar right clik on particular lpar à Dynamic logical partà Physical adaptor resource à remove
Select the slot T12 and clik OK

NIM Installation Steps

Prequiest are

The disk should not be mirrored.

You should must be knowing the IP address of the enthernet port of the server which u will be giving to the server.

We need to make one Master and others as there Clients .

Required to set the ip address of the master server and the ulimits .

Step that needs to be followed at the Master end are as follows :

Step 1) Insert cd1 of the os base cd and run nim_master_setup command .

It will take time and automaically configure the required setup , it will rake nearly 5-10 mins to complete .

Step 2) Type vi /etc/host ......in this add the entire of your client machines .

ie . you need u need to give ip address and the host name .

Step 3) Once this is done then run smitty nim command

A: Select Perform Nim Administration Task .

(1) Manage Machine .

* define Machine ..........in this u will need to give the hostname of ur client machine . (then press esc+3)

(2) Manage Network Install Resource Allocation .

* Allocate Network Install Resources ..........in this it will show u host name of master and clients , need to select client .
.............once u have selected client machine it will show u the list of the thigs that will be install , need to select all the things

(3) Perform Operations on Machine .
* Select

This complete all the settings that needs to be do on the Master Server .

Step that needs to be followed at the Client end are as follows :

Step 1) Boot the client server in SMS menu select the 2 option ie Remote IPL

Step 2) Give ip address , subnet mask , host name of the client machine.

Step 3) Make sure that protocal used is normal instead of IEEE802.1 .

Step 4) The spanning tree should be not seleceted ie it should be off .

Step 5) It will give u option to test ur ping select that and check it the output will be ping sucessfull .

Step 6) Press X and logout of the SMS menu the installation will start and it will take nearly 15-20 for the installation to be complete .

This complete all the settings that needs to be do on the Client Server .

And this complete NIM installation .

AIX Boot Process.

First it check Hardware POST inventory.
Then ROS IPL checks user bootlist available devices. If a valid boot device not found then it boots from First boot device. ROS (Read Only Storage) this is a sample code which locate and load bootstrap code. It contains boot info.
Then S/W ROS locates , loads boot info and takes over control to BLV(Boot logical Volume)
Then control passed to kernel to begins to system initialization.
The system tested Hardware found in BLV & start the init process from /usr/lib/boot

With the Help of Init executes Rc.boot1 script

Init Start from Rc.boot 1.
Restbase command is called for copy the partial ODM into /dev/hd4 file system
Then cfgmgr –f called for config rules for ODM
Bootinfo –b cmd call for last boot device detection
So Phase 1 configuration methods results in the configuration of base devices into system.
Rc.boot 2 script call
Root VG will be activated with varyonvg cmd.
The /dev/hd4 file system checked and mount on / and also check for /dev/hd1 and mount on /usr
The /dev/hd9var file system checked and mount on /var. At same time copycore cmd check if dump occurred. If dump exists it will be copied from dump /dev/hd6 to default dir. /var/adm/ras then /var will be unmounted
Then swap or paging space will be turn on with the swapon cmd.
Mergedev cmd call & copied all /dev/ files from RAMFS to disk
As well as all customized ODM files from RAMFS are coped to disk.
Then /var mounted
At the end of rc.boot2 kernel removes from RAMFS.

Then init process is started Rc.boot3 script for remaining device configuration.
Then /dev/hd3 file system checked and mount on /tmp
RootVg will be synchronize with syncvg cmd.
Console is configured with cfgon cmd
Then savebase cmd saves boot customization details to be used on next boot.
Errdaemon and Syncd daemon will be started after 60 sec.
Remove /etc/nologin file
Then /etc/inittab file wiil be executes for start other process.