How to use HMC to boot LPAR from network using lpar_netboot

lpar_netboot too boot LPAR from network (NIM) using HMC console without setting up LPAr in SMS menu:
https://www.ibm.com/developerworks/wikis/display/virtualization/lpar_netboot

How to track allocated resource in NIM, reset and deallocate resouces

If a resource is allocated to any client in NIM and you want to delete or change resource you get this type of message:

lparx:/ # nim -o remove -arm_image=yes master_mksysb
0042-001 nim: processing error encountered on "master":
   0042-061 m_rmbosi: the "master_mksysb" resource is currently
        allocated for client use

To check whether resource is allocated:

lsnim -l -t mksysb | egrep ":|alloc_count"|grep -v date

lsnim -l -t lpp_source| egrep ":|alloc_count"|grep -v date

lsnim -l -t spot| egrep ":|alloc_count"|grep -v date

To reset and deallocate resources from all machines run this script:

for i in `lsnim -c machines | awk '{print $1}'`

do

    nim -o reset -a force=yes $i
    RC=$?
    if [ $RC -eq 0 ] ; then
        nim -Fo deallocate -a subclass=all $i

    fi

done

Replacing a Fibre Channel adapter on the VIOS (Virtual I/O Server)

This article describes the procedure how to replace failed FC HBA adapter in VIOS: 
http://www-01.ibm.com/support/docview.wss?uid=isg3T1012453

Configuring NTP on AIX 5L

http://www-01.ibm.com/support/docview.wss?uid=isg3T1000653