AIX (Advanced Interactive eXecutive) is a series of proprietary Unix operating systems developed and sold by IBM.
Performance Optimization With Enhanced RISC (POWER) version 7 enables a unique performance advantage for AIX OS.
POWER7 features new capabilities using multiple cores and multiple CPU threads, creating a pool of virtual CPUs.
AIX 7 includes a new built-in clustering capability called Cluster Aware
AIX POWER7 systems include the Active Memory Expansion feature.

Saturday, September 3, 2011

Procedure to Install an APAR / fix


1-i want to know what the difference between APAR and Fix ?
2-How can i know what fixes should i install on my server ?
3-What's the procedure to install a fix?
4-How can i remove a fix that disturb the system ?
5-How can i change these states commit,applied and valide?

1) An APAR (Authorized Program Analysis Report) is a bunch of software
patches that solves many problems while a PTF (is the same as Fix and
means Program Temporary Fix) is a patch that solves one specific problem.
You will download Maintenance Levels (ML) as APARs from IBM Software Web
Site.

2) You should install the latest Maintenance Level for the AIX version you
have installed (usually a big bunch of software up to 650 MB that needs
almost 1GB space to be decompressed and installed). As AIX 5L is new
technology from IBM they're patching many problems and generating ML very
often. You can download from
IBM Website

3) First, you have to know which Fix or PTF to install, then download it
from the above web link, then copy to a location in the server (usually
PTF's are copied to /usr/sys/inst.images directory as well as there's
enough space (what i do is to create a new FS of some 2 GB dize and mount
it over /usr/sys/inst.images, after installing the APAR or PTF i just
delete the FS without deleting the mount point). Then uncompress or unzip,
untar, whatever, and using the fastpath smitty update_all in AIX you
can install or preview the installation of any patches. I recommend using
preview option before real installation and also recommend installing
patches in APPLIED status, that is, both either original or old version
and newest version of the software are installed, so you can REJECT the
installation of any patch.


4) You can remove any single fileset with the fastpath smitty remove

5) A COMMITed software is installed and the only way to reject it is by
uninstalling the software fileset while a APPLIED software is installed
and the preview versions of filesets are installed too so if you REJECT
the APPLIED software then those older versions will be active again.



Posted by at

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)