As many of you have heard by now, Paul Mauritz is out as CEO of VMware, and Pat Gelsinger (formerly COO of EMC, reporting directly to Joe Tucci) is replacing him.
The relevant question for those of us who care passionately about Oracle virtualization using VMware vSphere is:
What does this mean for VMware's BCA (Business Critical Applications: stuff like Oracle) strategy (which under Maritz was somewhat lacking)?
In my view, this is very, very good news indeed. The reason is simple: Paul Maritz was former Microsoft, and thus very Microsoft-centric. Under Maritz, VMware very successfully penetrated the Microsoft (more...)
I thought it worth republishing Dave Welch's (of House of Brick) comments to my discussion on the Everything Oracle at EMC online community on the subject of Oracle licensing costs on VMware vSphere configurations. Here are Dave's comments:
Let me start by bringing all of you into the courtroom. There are three issues that you will observe me as counsel provide to the jury as part of my allowed instruction (I am not an attorney in real life).
I offer the definitions in this paragraph only to make this post as self-sufficient as possible and not with intent (more...)
VMware has put a stake in the ground with respect to Oracle licensing of VMware VMs running Oracle. The gist of this statement regarding certification, support, and licensing is that DRS host affinity rules, combined with vCenter audit trails showing where VMs have actually run, are sufficient for Oracle licensing purposes. The summary of the document states:
DRS Host Affinity rules can be used to run Oracle on a subset of the hosts within a cluster. In many cases, customers can use vSphere to achieve substantial licensing savings.
vCenter VMotion Logging
Concerning vCenter VMotion logging, the (more...)
I have received a fair number of responses to my previous post on this subject (some via comments and some via email). I thought the discussion worthwhile enough to punch it up a bit more here.
As I pointed out in the previous post, EMC can easily match NetApp's play to back up ExaData with the following:
As Geoff Rosser so correctly pointed out, this answer is incomplete. Yes, Data Domain is an awesome Oracle backup solution. Yes, it provides incredible deduplication rates for Oracle database environments. (Thanks, dynamox.) However, it is not the only viable solution from (more...)
There has been lots of material on the web recently concerning NetApp being able to backup ExaData. The purpose of this blog is to respond to that content, and state why NetApp's offering is rather lame, and actually offers nothing new.
The items on the web produced by NetApp are easy to find. I will not increase their Google hit rate by linking to them here. Suffice it to say, Neil Gerren's blog contains the principle content to which I will respond here. There is also NetApp technical report TR 4022, a 34 page tome, which I have read thoroughly. (more...)
Appliances such as microwave ovens, refrigerators, iPods, iPads and TVs are excellent examples of the ease-of-use approach. Bringing the inherently complex world of Oracle databases together with the ease-of-use approach of appliances is challenging. By definition if Oracle Exadata is an appliance then its use should be simple, require relatively little maintenance and like a refrigerator do its job which in this case is run databases at extreme performance levels. If Oracle Exadata isn’t an appliance than what is it?
I found this question (more...)
Book Review: Oracle 11g R1/R2 Real Application Clusters Essentials by Ben Prusinski and Syed Jaffer Hussain (Packt Publishing)
Oracle Real Application Cluster (RAC) becomes the technology of choice for highly available and highly scalable deployment of enterprise Oracle database environment. With its innovative technology it comes with no surprise its complexity. The complexity is not only with the underlying database technology itself, but also how well you design and implement it to work with other components including operating system, storage subsystem, etc. In order to setup and maintain a successful RAC environment, it not only requires technical knowledge of database administrator (DBA), but also well collaboration and extended planning between all IT and business partners.
Few years (more...)
Method 2: Use new utility called NID
Steps to rename Databases using the new NID utility:
1.) Stop database
[oracle@testing1]~% srvctl status database -d test
Instance test1 is running on node testing1
Instance test2 is running on node testing2
srvctl stop database -d test
2.) startup mount the database:
[oracle@testing1]~% sqlplus / as sysdba
SQL*Plus: Release 22.214.171.124.0 Production on Thu Jul 21 00:50:44 2011
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Connected to an idle instance.
There was an interesting index related performance problem on Stack Overflow recently. The problem was to check an input string against a table that holds about 2000 prefix patterns (e.g.,
LIKE 'xyz%'). A fast select is needed that returns one row if any pattern matches the input string, or no row otherwise.
I believe my solution is worth a few extra words to explain it in more detail. Even though it’s a perfect fit for Use The Index, Luke it’s a little early to put it as an exercise there. It is, however, a very good complement (more...)
As of June 28, 2010 the Oracle APEX listener is available for download on the Oracle Technology Network (OTN) here. The APEX listener in combination with a J2EE Web Server is a drop in replacement for Apache / ModPLSQL. Since Oracle Application Express (APEX) is deployed within an Oracle database (more...)
This article describes the effects of a high row migration rate on the clustering factor and the optimizer’s ability to select the best execution plan.
In my previous article—Row Migration and Row Movement—I have demonstrated that the “insert empty, update everything” anti-pattern can lead to 100% row migration. This article continues the research on row migration and unveils surprising effects on the clustering factor. To be precise, the clustering factor can become completely bogus in presence of a very high row migration rate. Once the clustering factor is “wrong”, it’s just a finger exercise to construct an optimizer (more...)
Compiled data from various sources and finally came to the below data. Please use it for reference, this data is correct to best of my knowledge.
Incase you find that there is any problem please let me know.
Incase you need insert statement for database, please ask for them I will send them to you.
I hope this is useful!!
"Now: the simple fact here is that folks from Google, Facebook, Myspace, Ning etcetc, and what they do as far as IT goes, are absolutely and totally irrelevant to the VAST majority of enterprise business."This is so true. For starters, there is no SLA for users of Google's search engine. If Google doesn't include (more...)
Collaborate 09 starts on Sunday, May 3 (a few days from now!) in Orlando. I’ve been offline for several weeks (more on that later), but will be returning to the world of computers and technology in full force in Orlando. I’ve had a few inquiries about whether or not I’ll be at Collaborate, so I thought I’d resurrect my blog with a post about where I’ll be and some of the highlights I see at Collaborate 09.
First, where I’ll be presenting:
- Monday, 10:45-11:45am, #301, “Avoiding Common RAC Problems”
- Tuesday, 9:45am-12pm, #332, “Installing RAC From The Ground Up”
The RAC SIG, Oracle and IOUG are thrilled to present the hands-on event dubbed “RAC Attack!” at Collaborate09 in Orlando, FL. It is a half-day University Session in the IOUG Forum scheduled for the morning of Thursday, May 7th.
Each participant will have their own private RAC cluster to use. You’ll be able to install a new cluster, test session failover, perform backup and recovery and just about anything else you’d like to try (time permitting). The session will have lab outlines with very specific instructions that cater to beginners. Advanced users are welcome to test anything (more...)
This article talks about the emerging database (key/value database) and compares it to RDBMS. One of the interesting things being that you may not be able to perform JOIN operation. It is being described as the suitable model for cloud service provides (and pay-as-you-go service providers) and big players like Amazon (SimpleDB), Google (AppEngine Datastore), Microsoft (SQL Data services) have already started the offering. There are non-cloud providers too like - CouchDB (more...)