Re: aix comparison
From: Sandor W. Sklar (ssklar_at_gmail.com)
Date: 07/24/04
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Date: 23 Jul 2004 19:47:12 -0700
Shivakanth Mundru wrote:
> To be frank I have read (atleast browsed) that Reference guide and I
> couldnt understand how AIX is better than Solaris (as per an AIX
> friend/sysadmin). Its more about how a Solaris admin can co relate
> commands in AIX world. Any way AIX has got SMIT,WSM Which I didnt
like,
> this may be because I am very much used to Solaris CLI.
I think that many people don't understand that anything that can be
done with SMIT can also be done from the command-line. If one choses,
an AIX administrator never has to use SMIT even once.
SMIT is useful (in my opinion) in three ways:
* when one has to perform some action that is not very common, it is
easier to run SMIT then it is to pour through a manpage or a printed
manual to find the right flags for doing what you want.
* when you are working on something that you're not yet familar with,
pressing F6 (or Esc-6) will show you the exact commandline and
arguments that SMIT will execute.
* Every action performed by SMIT is logged to two files; one log
(/smit.log) shows all of the screens and choices made, while the other
log (/smit.script) contains a running listing of all of the commands
that have been executed via SMIT. This is no way a security measure,
but it can be very useful to read through and see when something might
have changed.
>
> I doubt whether Sun's plan to port Solaris on AIX will turn out true.
> (may be it will but whats the advantage for sun other than adding one
> more architecture on which solaris runs) I agree with Shea on that.
I think that is highly unlikely; Solaris already runs on two
architectures, and what money would be in it for Sun?
>
> It would be great if any one who has good understanding of both AIX
and
> Solaris can post where one fares better than other. I would be
curious
> to know as well.
I think I have a pretty good understanding. Personally, I think that
AIX's biggest benefit revolve around its logical volume manager, which
is (and has been) fully integrated into the OS, and its DLPAR
capabilities on the newer hardware (sort of like the Sun Fire domain
capability, but it actually works well, and is fairly easy to use
dynamically.
As far as the Solaris advantages, I think Solaris is closer to the
definition of a "pure" Unix (whatever that means); Unix folks get weird
when they hear about the ODM, or SMIT, of the LVM and so on. I've been
told that it is easier to port software to Solaris then it is to port
to AIX, due to some library linking differences.
Both IBM and Sun sell big boxes, but IBM doesn't sell as many smaller
boxes, so I think its easier to find people that have Solaris
experience, because it is easier to be exposed to it. We have fairly
large RS/6000 / pSeries systems, and we have fairly large Sun systems.
In my experience, the Suns seem to panic and reboot more often then the
IBMs, but when it happens, they almost always come right back up. The
AIX boxes stay up longer, and rarely go down because of a kernel issue,
but when they do, it seems like it takes all night and a couple of CEs
to fix the problem.
Hope that helps; understand that we have 10 Solaris boxes for every one
AIX system. I'm also the lead administrator for the AIX systems, but
am one of a small group of admins for the Sun stuff, so my opinions are
skewed by this, probably.
-s-
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