How big is AIX 6.1?
AnthonyEnglish 270000RKFN Comments (2) Visits (8205)
There are a lot of sites out there that are on AIX 5.3 and are only now thinking about dipping their toes into AIX 6.1. Isn't it about time? And it's not that hard.
As you've seen on AIX Down Under, installing a new LPAR in a virtualised environment is so easy that the temptation may be just to go creating LPARs straight away and keep going till you run out of time. Alas, even virtualisation has limitations. They're called hardware.
Bare minimum CPU, memory and disk
For an LPAR with a base AIX installation on it, you can seriously get by with 0.1 of a CPU (I suggest you leave it uncapped!), provided you don't want to run anything much in the way of databases or applications. The hypervisor on a Power system manages the CPU allocation really well.
If you're not using Active Memory Sharing, the minimum memory required for AIX 6.1 is 512 MB. I once installed an AIX 5.3 LPAR with the minimum requirement which was then 256 MB. The installation worked fine but when I ran a mksysb, it brought the LPAR to its knees. So don't try it at home using 6.1.
Get along with the SAN team
So how much disk does an AIX 6.1 installation take? If
If you're using logical volumes from the VIO server, you can tailor them to the size you want, as long as you have the disk space available to the VIO server.
So how much disk do you need for AIX 6.1? About 4 GB of physical (or virtual!) disk space, according to the AIX 6.1 Release Notes. Those release notes also step you through the installation process.They recommend 6100-04 as a minimum, but there's a more recent release of AIX 6.1 available from the IBM Support Portal. That's where you can obtain system and device firmware as well as any HMC updates if you need them.
It all looks quite doable, doesn't it? If you're on AIX 5.3 or <big frown> an even older release of AIX </big frown>, it's time to move to AIX 6.1.
Here are the details of the initial disk usage for AIX 6100-04 from those release notes.