Re: Oracle Unbreakable Linux

From: Amar Kumar Padhi <>
Date: Sat, 15 Mar 2008 01:15:20 +0400
Message-ID: <>


Hi Russ,
yes you do have a situation there. I honestly would not be able to contribute here as I do not know the background. I can't blame Suse either as file system is connected with the base kernel and my guess is that you would have hit the same issue had you been running any other flavor (unless this is not a file system issue). Linux flavors support file systems like - ext2, ext3, raiserfs etc. that are commonly used by all. Besides SAN/NAS may be configured on a different file system that Linux talks to. This will need a deeper investigation to identify the problem. Do update us if you do find more on this, it will be good to learn from your experience.
In case you do have an Oracle SR or Linux support details on this matter, do forward it to me if it is OK.

I have encountered somewhat similar situation in the past. The prime thing is to identify whether it is software or hardware related. In my case, one Red Hat issue was due to an older file system type and a Sun system issue was genuinely a hard disk block corruption. In both cases, making appropriate changes (either software or hardware) resolved it.

If you encounter similar situation again, I would be curious enough. As this is not a Linux list, you could privately send me more details. I can't imagine if changing to another flavor would help but educate me if you find something different.


Russ Brewer wrote:
I'm the friend.  I just subscribed so not sure if this will post to oracle-l list or not.  We have been running SLES-9 for a couple years and recently built 4 servers with SLES-10.  We are migrating from Solaris to Linux.  Overall, SuSE Linux has done fine.  However, we've had two anomalys occur, once on SLES-9 and once on SLES-10, in the past 4 months that have us concerned.  With no warning and with no errors prior, a handful of files or a subdirectory becomes corrupt.  The ls command doesn't show the corrupted item(s) any longer, but something like 'ls xyz*' produces an I/O error.  Also, you cannot delete the affected item but you can delete everything in the directory.  This occurred once with about 10 audit files ($ORACLE_HOME/rdbms/audit/) and once with the Oracle timezone file ($ORACLE_HOME/rdbms/oracore/zoneinfo).
We are trying to determine if other flavors of Linux are more stable, based on user feedback.  What's your opinion?
Russ Brewer

On 3/14/08, Amar Kumar Padhi <> wrote:
Hi Kevin,
Implementing and administering on Oracle enterprise Linux (also called "unbreakable") is as good as any other flavor. I have tried it along with other flavors for about an year now. Initially, there was lot of bad vibes on this flavor. Some said it existed to erode the Red Hat Linux market by giving lower prices for the same software. It was badly documented too. I have seen things improving a lot and Oracle has a good grip on this subject. Support is good.

Here is some more info that may be interesting to your friend.
As a consultant, I have installed and deployed Oracle (database, application server) applications on Red Hat Linux for most of the last 6 years. Some time back, I decided to Look at Ubuntu and Oracle Enterprise Linux to increase my support on Linux flavors and give more options to clients.

Oracle Enterprise Linux is based on Red Hat Enterprise Linux and I found no difference between the two. Oracle support is good and they provide customized RPMs (or direct to appropriate site). Implementing and running applications is equally good. But I have no issues with Red Hat support either. To be honest, any flavor you take it is the same base kernel being used. So the decision has to be more on comfort levels, company standards and costing.

One concern raised by some clients was that it increases the dependency on a single vendor (Oracle will provide OS, Database, runtime, AS and even Virtualization). My take is that Oracle is designing new technologies on Open Source Model and that the dependency is not on a single vendor (except for commercial purposes) but on the huge development community out there.

So the stand I have taken is- Let the clients decide. If they ask me then I check with them if costing matters (though the differences are insignificant for someone buying Oracle licenses). If it doesn't, then as of this time I recommend Red Hat Linux. This is more a personal choice as I am connected with the Fedora community (dev to Red Hat production) and am aware of what is happening in the flavor. Ask your friend to identify the possible scope (money, support cost, non-oracle applications, vendor dependency, management stand, IT stand etc..) that needs to be satisfied when looking for a flavor, it might help in making a choice.


Kevin Lidh wrote:
A friend of mine is considering Unbreakable in his organization and
wondered if I had heard of anybody using it in production.  I personally
haven't but was wondering if anyone on this list was using it and what
they're feelings about it were?  Have you used Oracle's support and how
was it?


Kevin Lidh



-- Received on Fri Mar 14 2008 - 16:15:20 CDT

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