What is a mksysb?

A mksysb is an AIX system backup that allows you to restore your rootvg disks to what they were at the time the backup was taken. In effect, this restores your operating system. A mksysb backup should be taken at least once a week.

How to exclude files from mksysb?

If you want to exclude files that are listed in the /etc/exclude. rootvg file, select the Exclude Files field and press the Tab key once to change the default value to yes. This excludes all contents of the /tmp directory, but the /tmp mount point for the file system is retained.

How do I restore a directory from Mksysb in AIX?

First of all, go to the directory that contains the mksysb image file:

1. # cd /sysadm/iosbackup. In this example, were using the mksysb image of a Virtual I/O server, created using iosbackup.
2. # restore -T -q -l -f vio1.mksysb | grep nimbck.ksh.
3. # restore -x -q -f vio1.mksysb ./home/padmin/nimbck.ksh.
4. # cd ./home/padmin.

How do I reset my NIM machine?

Resetting the NIM state from the command line

1. To return a machine to the ready state, enter: nim -Fo reset MachineName.
2. To deallocate resources, enter: nim -o deallocate -a ResourceType=ResourceName MachineName.

What is Lpp_source and spot in AIX?

An lpp_source is a directory similar to AIX install CDs. It contains AIX Licensed Program Products (LLPs) in Backup File Format (BFF) format and RPM Package Manager (RPM) filesets that you can install. [email protected]: / # lsnim -l 5300-TL_00_to_08_works.

How do I reset NIM client in AIX?

How do I confirm the success of the mksysb command?

Confirm the success of the mksysb command by the return code. If you are creating a tape backup and have encrypted file systems, you must use the -Z flag. You cannot reinstall your system from a tape backup image that contains encrypted file systems.

Why is my mksysb file system not updating?

If you added somme new filesystems to the system, but image.data has not been updated, then it has no knowledge of the added filesystems. What will happen during an mksysb resore, is all of that extra data will be put into your / (root) filesystem. It will likely fill up to 100%, and your mksysb restore will fail.

Can I use a mksysb image to restore another system?

You can also use a mksysb image to restore another system. The file system image is in backup-file format. The tape format includes a boot image, a bosinstall image, and an empty table of contents followed by the system backup (root volume group) image.

What does m_mkbosi error code 0042-304 mean?

0042-304 m_mkbosi: Unable to obtain the space allocation lock… In my case mksysb creation has been halted abruptly, and after I killed the stucked mksysb processes the lock was cleared automatically and I was able to do a new mksysb.