Linked by Thom Holwerda on Thu 31st May 2007 20:57 UTC, submitted by BlueVoodoo
"Learn the intricacies of the AIX file system framework. Every operating system provides a native kernel framework that kernel developers have to understand and adhere to when developing a piece of a kernel component for that operating system. This article sheds some light on the AIX file system framework. You need to understand the framework in order to develop a new file system, or to port an existing file system to the AIX operating system."
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Member since:
2007-06-01
What have you been smoking?
Don't want to start a flamewar or anything. I happend to be a unix admin in telco company, and have pretty decent amount of servers to support including HP and IBM. First i was supporting only HP-UX then i started working with AIX and if i could choose i would never go back to HP. The difference between AIX and HP-UX is simple, the guys in IBM had planned the OS very well, the design is very robust and well thought! Every command in AIX has it's purpose, it's there to do the job and do it good. AIX is by far the most advanced unix we have these days, and to get the advanced features you have, you will need ODM and all the other things that are tightly integrated in to the OS, comparing ODM to registry is plain stupid. You can do whatever you want with the ODM you have the cmd tools but you have to know what you are doing, becouse you can render the OS useless if you mess up. IBM is one step ahead of the competiton and that is proven by the new release of the Power CPU! Please do show me ONE single empty feature promise!! How is it with HP? I tell you, you have config files scatered in all sorts of places! HP are trying to implement all the stuff AIX has for ages, and they do it badly. Sometimes i have the feeling the HP-UX developers from different parts of the OS don't comunicate to each other and you get what HP-UX is these days, the new 11.31 version is no difference! Do you know how you create a VG in HP-UX? I will tell you, it starts like this:
mkdir /dev/somevg
mknod /dev/somevg/group c 64 0x030000
nice isn't it? Even the stupid linux doesen't do that!!
In HP-UX online FS resizing is a feature that costs extra?!?! What server OS is one that can't resize a stupid FS online? Mirroring the vg00? That costs extra too...In the new version they give those for Free (WOW that's a real bonus you know). Did you know in AIX you can flash the firmware of the SCSI drives in the server ONLINE (they recommend doing it while you have less I/O to the drives) good luck doing that in HP-UX.
And about the seasoned administrator that can't tell what command they run in smitty? Right like you do know all the switches in every command you use...that's pretty silly don't you think? Smitty is there to help you, i can't say that for sure about SAM. The new version of sam in 11.31, called shm is a step in the right direction, time will tell.
I currently work with AIX5.3, maybe you work with AIX version 3?
And don't get me started on the Backup tools AIX and HP-UX have, the guy that made Ignite-UX did a crime against the humanity.
Have you read a single HP document and then some AIX documents? I don't think you have. Please do stop by www.redbooks.ibm.com and look around.
After you work sometime with Linux, HP-UX and AIX you get to appreciate what AIX offers you. Some peapole think that the harder it is for you to do the daily tasks you have, the more l33t you are. NEWSFLASH: YOU ARE NOT. You are just wasting your time with stuff that isn't suppose to be that hard to do, instead of learning new technologies and working with them, the world is progressing and it's moving forward not the other way around!
NOTE: i know this post sounds like i'm some kind of AIX fanatic but i'm not, i'm just regular unix admin thats all.
NOTE1: edited becouse of typos.
Edited 2007-06-01 14:12