Login or Register to Ask a Question and Join Our Community

HELP for AIX 4.3 upgrade to 5.3

Thread Tools Search this Thread
Operating Systems AIX HELP for AIX 4.3 upgrade to 5.3
# 1  
Old 03-29-2006
HELP for AIX 4.3 upgrade to 5.3

Hi guys
I have joined a new department and one of my tasks is to investigate the feasibility of upgrading our current AIX v 4.3 to V5.3.
I do not know anything about AIX and any actual work will be done by an outside consultant until such time as I have built up my own knowledge.
The system we run on AIX has an Informix database on a RS/6000 43P Model 150 604e 375 Mhz server. The application runs on a number of PCs running SCO unix. This is a mission critical system and we cannot afford downtime as it feeds information for parts to be received , stored and then distributed to our car assembly lines.
What I would like to know from this learned forum are the following:
1. The system we are using on AIX will be replaced by SAP in about 2 years time so if the exercise is too costly/risky/complicated maybe we should not even do it. Thus should we consider the upgrade?
2. I was told that the RS/6000 model server we are using may not be able to support V5.3. Is this true or a lot of bull?
3. If we do the upgrade are there any issues or things we should be aware of ?

Thanks for the forum.
# 2  
Old 03-30-2006
i think everyone's situation is differernt... but if you were to ask me... then...

1. i don't think an upgrade will necessarily be THAT costly considering it's a mission critical system. you should, however, consider a couple of things: AIX support and your application support. has the application ever been certified on AIX versions later than 4.3? how do you get support for AIX 4.3? are you at the mercy of that outside consultant?

2. i do not believe 5.3 will run on a 43p. i THINK the highest you can go is 5.1.

3. the only upgrade issue you may need to consider is whether or not you have the hardware and software that supports that upgraded AIX version.

if that SAP system comes in somewhat soon, you may want to consider just keeping the 43P running as is and buy a bunch of spare 43Ps (since they're DIRT CHEAP on the used market) for spare parts if anything breaks. *shrugs* just a thought.
# 3  
Old 03-31-2006
Thanks for the input Scatterbrain. Buying old 43ps is a good idea.
# 4  
Old 04-01-2006
JDM.... IMHO there's a lot of "business" issues to deal with before you tackle the "technical" issues. For example:
  • mission critical on a single machine ? (doesn't sound too mission critical to me)
  • feeding a car assembly line (that does sound mission critical)
  • what budget is available ?
  • what's the cost to your business if that Model 150 ever goes "off the air" (i.e. stops the assembly line) ? $50,000 / hour ? $250,000 / day ? (pick a number)
Regardless, everyone's situation is different. What works for one, may not work for another.

With respect to your questions:
  1. if your environment really is mission critical, then I'd consider something that keeps your car assembly line going, above all else. Redundant systems come to mind. Upgrade ? may be, may not, it depends. Migrating to a pair of p5 processors, now, may provide you with more options.
  2. run the command --> bootinfo -p <-- on your 150, If it responds with "chrp", it will run AIX 5.3. I seem to recall a 150 will in fact run AIX 5.3 but run the "bootinfo -p" command to confirm this for yourself. AIX 5.3 also has other "minimum" reqm'ts that might bite you on a Model 150, like 128MB memory & something like 2-3 GB free space. If you're using a single 4.5 GB drive that might be an issue for you. Remember these are minimums, not recommended values.
  3. the Model 150 is a 32 bit machine, so the AIX 5.3 kernel will need to be the 32 bit version (not the default 64 bit kernel)..... this is not a problem, IBM provides both. But AIX 5.3 is the last announced version that will support a 32 bit kernel. AIX 5.4 allegedly is 64 bit kernel only, so it's pretty easy to conclude that AIX 5.3 will be the last release that will run on a Model 150.
Good luck sorting thru all the pros & cons. You've only scratched the surface.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. AIX

How do I upgrade AIX to without using NIMserver??

Hello Everyone. I am trying to upgrade one of my servers which is AIX to AIX I have downloaded the fix packs and stored in /tmp/TL3SP3 directory. I ran inutoc .; bffcreate -ad; inutoc . then smitty installp I get an error like this Verifying requisites... ... (11 Replies)
Discussion started by: gorkhali
11 Replies

2. AIX

AIX 7.1 Upgrade problem

Hi all, I'm getting errors while booting AIX 7.1 after upgrade I have used FLRT tool for the process with the following input values shown in the attached photo. titled FLRT After reboot for the upgrade process system hangs and no response as shown in screenshot named AIX7.1-NormalBoot I... (13 Replies)
Discussion started by: h@foorsa.biz
13 Replies

3. AIX

AIX upgrade

i upgrade aix ml to but when running commnd #oslevel -r shows out put, again where should i chek??? 2-can any one tell me when mknfs command run which files get updated?? (2 Replies)
Discussion started by: nayyer
2 Replies

4. AIX

How to upgrade AIX Firmware & TL Maintenance Level in AIX

Steps to upgrade AIX TL ( technology Level ) / Maintenance Level in AIX ( including Firmware HMC VIOS ) This article or post covers upgrades for - Hardware Management Console ( HMC ) - Firmware ( also known as microcode ) - VIO ( Virtual I/O Server = PowerVM ) - AIX Version, Technology... (2 Replies)
Discussion started by: filosophizer
2 Replies

5. AIX

AIX ADI for just a TL/SP upgrade help

Is there a way to install a newer TL and SP level to an alternate disk, then boot to that disk? I've used adi to upgrade an os level but not just a tl or sp level. When I tried the same way, I received an error saying I cant migrate from aix 5.3 to aix 5.3. The other options I've found... (1 Reply)
Discussion started by: gravy26
1 Replies

6. AIX

Upgrade from AIX 5.3 to 6.1

Hello Folks, i am facing some weired issues. case is like this :- initially i was on AIX 5.3 i have installed filesets related to my application and those were in APPLY state.(COMMIT is set as NO) Then i have taken lslpp -l| grep -i <apps name> in that i confirmed whether the filesets are... (1 Reply)
Discussion started by: harsh_mulay
1 Replies

7. AIX

AIX OS upgrade gone wrong

I have an AIX LPAR that is one half of a Oracle RAC cluster running over a GPFS filesystem. The OS version in the LPAR was 5300-05-01 I ran an upgrade to 5300-07-05 (Apply only, Commit=NO and preserve old files). The preview passed with no failures detected. The actual upgrade failed... (5 Replies)
Discussion started by: morgan_g
5 Replies

8. AIX

AIX Upgrade 5.2 to 5.3

I have an IBM P520 that I need to upgrade from 5.2 to 5.3. My background in Unix is from 15 years ago so I don't remember much. IBM documentation is hard to find. Any help would be appreciated. (1 Reply)
Discussion started by: bashtonmcse
1 Replies

9. UNIX for Dummies Questions & Answers

AIX Upgrade

Does anyone know any gotcha's on upgrading AIX from 5.1 to 5.3? Any interim steps on needs to do or ??? (3 Replies)
Discussion started by: capeme
3 Replies

10. UNIX for Dummies Questions & Answers

AIX ML upgrade

Hello everyone, I have to do a ML upgrade on AIX 5.2 from 01 to 09 this is the first time iam going to do it. are there any command i have to keep in mind?? thanks! (1 Reply)
Discussion started by: karthikosu
1 Replies
Login or Register to Ask a Question

Featured Tech Videos