Understanding backup and Restore in AIX Important Points: a. rootvg backup can be taken thru mksysb command. Most people refer it as mksysb backup. b. This type of backup on a tape is bootable. Hence its been widely used to restore the system incase of system crash. c. Mksysb backup contains 4 images i. BOS Boot Image - Kernel Device Drivers ii. mkinsttape image - ./image.data, ./tapeblksz, ./bosinst.data and few other commands iii. dummy .toc - Nothing but a dummy table of contents file iv. rootvg data - This is where the actual data resides Files used by mksysb: /image.data : Contains information about the image installed during the BOS installation process. This includes the sizes, names, mount points of LVs and file systems in the rootvg [Actually nothing but the rootvg structure]. It can be created using mkszfile command. /var/adm/ras/bosinst.data : It allows you to customize the OS installtion. Modified mostly to use the mksysb image to install new servers. Few Commands : To gene...