Comments for Irrelevant thoughts of an oracle DBA

Comment on Two Oracle RAC bugs on the wall, two Oracle bugs. Take one down … by Jakub Wartak

Jakub Wartak — Tue, 10 Nov 2009 22:51:17 +0000

I’ve hit that NFS{hard,nointr} issue about 1 year ago, when I was trying to build Extended RAC in home lab. I did not have have Metalink access at time, but what appears that should work is DirectNFS – it is implemented by simple send()/recv() operations from Oracle userspace – so in theory, provided that there is timeout code implemented in DNFS implementation it should work. However I was not able to get DNFS working with Linux/Solaris/OpenFiler(Linux) NFS server at that time – from what I remember, sniffing & analyzing revealed that there was some kind of incompatibility between DNFS client and non-NetApp NFS server (some strange(?) NFS-level operation on directory not being handled correctly by Linux NFS server/same with Solaris).

…What worked for me finally was iSCSI (I was pretty time constrainted) :)

Comment on Two Oracle RAC bugs on the wall, two Oracle bugs. Take one down … by Svetoslav Gyurov

Svetoslav Gyurov — Tue, 03 Nov 2009 12:03:20 +0000

Hey Freek,

Thanks for the reply and advice. I’ll fix it and keep in mind this problem. Actually I found this at this particular moment when I’m preparing for presentation about how Oracle is working on HP-UX and Linux and show some differences.

Regards,
Sve

Comment on Two Oracle RAC bugs on the wall, two Oracle bugs. Take one down … by dhoogfr

dhoogfr — Tue, 03 Nov 2009 11:13:48 +0000

Svetoslav,

You can easily work arround the public bond problem by editing the racgvip script and set the MIITOOL variable to a non existing location.
This way, oracle will fallback to pinging the default gateway to check the link status.
However, I think the crs will have to be restarted before the change will be enabled.

regards,

Freek

Comment on Two Oracle RAC bugs on the wall, two Oracle bugs. Take one down … by Svetoslav Gyurov

Svetoslav Gyurov — Tue, 03 Nov 2009 11:07:50 +0000

Hi,

The second one really interested me because I’m also using bonding on several installations although I have tested it, I never disconnected both cables so now I realize that this could be a problem.

Thanks!

Comment on Wintertime (again) by Log Buffer #167: a Carnival of the Vanities for DBAs | Pythian Group Blog

Log Buffer #167: a Carnival of the Vanities for DBAs | Pythian Group Blog — Fri, 30 Oct 2009 17:04:58 +0000

[...] of an oracle DBA, Freek D’Hooge gives us the unwelcome reminder that it’s (nearly) wintertime (again), in the northern hemisphere, at least. And with the season comes Standard Time. Freek writes, [...]

Comment on Multiple standby databases and supplemental logging by Bernard Polarski

Bernard Polarski — Wed, 28 Oct 2009 14:55:24 +0000

Thanks! Made a small case in my mind to store and keep this information.

Comment on Multiple standby databases and supplemental logging by Blogroll Report 16/10/2009-23/10/2009 « Coskan’s Approach to Oracle

Blogroll Report 16/10/2009-23/10/2009 « Coskan’s Approach to Oracle — Mon, 26 Oct 2009 23:55:57 +0000

[...] Freek D’Hooge -Multiple standby databases and supplemental logging [...]

Comment on switching to wintertime by Wintertime (again) « Irrelevant thoughts of an oracle DBA

Wintertime (again) « Irrelevant thoughts of an oracle DBA — Sun, 25 Oct 2009 13:28:33 +0000

[...] Filed under: infrastructure — dhoogfr @ 15:28 During my prior post on the effect of daylight saving settings on the Oracle scheduler, I already pointed out that it is [...]

Comment on Multiple standby databases and supplemental logging by dhoogfr

dhoogfr — Fri, 23 Oct 2009 20:58:18 +0000

Yep, not likely I will forget this the next time :)

Comment on switching to wintertime by Craigslist Power Poster Pro

Craigslist Power Poster Pro — Fri, 23 Oct 2009 01:32:08 +0000

Great article.thax