This is quick and dirty. I hope to get a more polished write-up of what it means and how it works, but since I’m so busy right now I don’t know if I’ll get to it soon. In the meantime someone just might find this useful or informative so I’m just going to put it [...]
ASM Space Calculations and Hot Spares
March 12th, 2009 § 1 Response
Future of OCFS2
February 5th, 2009 § 6 Responses
At the company where I’m working right now, I’m part of an architecture effort to come up with our standard design for RAC on Linux across the firm. There will be dozens or possibly hundreds of deployments globally using the design we settle on. We’re internally debating whether or not we should include OCFS2 in [...]
Oracle ASM Stripe Size
December 10th, 2008 § 4 Responses
Right now I’m working on some internal documentation and referencing Oracle 11g’s Storage Administrators Guide (ASM manual). And I think there’s a bit of a contradiction here about the stripe size. ASM uses a variable “data extent” size when allocating space for files (like any sane filesystem) – the first 20000 data extents are equal [...]
Parsing LISTENER.ORA with awk and sed
November 28th, 2008 § 4 Responses
Happy Thanksgiving to everyone in the US! And happy belated thanksgiving to everyone in Canada since you celebrated back at the beginning of October. :) I’ve been doing a lot of scripting work lately. Although I can’t write about everything I’m doing, I would like to post a pattern that I thought could be useful [...]
Oracle Fully Automated Install and Patch
October 22nd, 2008 § 12 Responses
Before I started consulting, I was an Oracle engineer in a very large software development organization. The company had a number of major products and the one I worked with was used by hospitals and radiology offices world-wide. (These guys are one of the biggest companies worldwide in the field.) Our product included the hardware [...]
ASMLIB Performance vs Udev
October 8th, 2008 § 8 Responses
Is asmlib obsolete on a modern Linux system? I’m still undecided but starting to lean toward “yes”. Everybody knows that asmlib was very useful when it was first introduced with Oracle 10.1 to simplify a host of issues on Linux: direct async device access without raw devices, file permissions & ownership without custom code, and [...]
Collaborate Wrapup, RAC 11g/VMware Lab
April 24th, 2008 § 2 Responses
So Collaborate is over and I’m back in Chicago… home sweet home. I thoroughly enjoyed the week in Denver, in spite of the snow! Thursday, the last day, was especially fun. First was a panel debate “To RAC or Not To RAC: What’s Best for HA.” Dan Norris invited me to participate in this panel [...]