All Flash Arrays: Active/Active versus Active/Passive


I want you to imagine that you are about to run a race. You have your trainers on, your pre-race warm up is complete and you are at the start line. You look to your right… and see the guy next to you, the one with the bright orange trainers, is hopping up and down on one leg. He does have two legs – the other one is held up in the air – he’s just choosing to (more...)

A Big Change….

It’s been some time that I have updated my Oracle blog. The biggest reason for this absence was that I was struggling with the hosting provider of mine. I won’t get into this whether it was good or bad but let’s just say, I wasn’t happy with their services and more so, from their customer support. And I had decided to switch over to a new hosting provider. This new hosting service has better plans, (more...)

My OOW Experience, the Prequel

On the first or second year after I became a DBA (somewhere in the year 2000, give or take), I heard about this magical event that is taking place in the Oracle realm. All the top Oracle DBAs and professionals in the world (and maybe a couple of unicorns, I’m not sure) are gathering in a small but beautiful village by the name of San Francisco – and talk about databases. I found this story (more...)

How Did I Become a Public Speaker: My First Time

Last week, my dear friend Roni Vered Adar told me about a pod cast by Kendra Little entitled “How to Level Up Your DBA Career (Dear SQL DBA)“. Roni told me that Kendra talked about the importance of public speaking and wanted to know what I think.

I said it’s a great idea, so Roni asked if I could tell her a little about how I started speaking in public, and about my (more...)

All Flash Arrays: Controllers Are The New Bottleneck


Today’s storage array market contains a wild variation of products: block storage, file storage or object storage; direct attached, SANs or NAS systems; fibre-channel, iSCSI or Infiniband… Even the SAN section of the market is full of diversity: from legacy hard disk drive-based arrays through the transitory step of tiered disk+flash hybrid systems and on to modern All-Flash Arrays (AFAs).

If you were partial to the odd terrible pun, you might even say that it was a bewildering array of (more...)

New Installation Cookbook: Oracle Linux 6.7 with Oracle RAC

cookbookI’ve updated my install cookbooks page to include a new cookbook for installation of Oracle Real Application Clusters on Oracle Linux 6.7.

This is also the first one I’ve published since I left the employment of Violin Memory to work for Kaminario, so this install uses a Kaminario K2 All Flash Array. However, it applies very well to any Oracle RAC installation which uses relatively capable storage.


Filed (more...)

How the Next Generation of Flash Storage is Changing the Economics Of SaaS Businesses (Recorded Webinar)

SaaS Webinar

This week I had the opportunity to record a webinar on a subject very close to my heart, the Software-as-a-Service industry. From 2003 to 2007 I managed the production infrastructure for a global SaaS company through the transition from startup to acquisition (partly by At the time, SaaS was a relatively new phenomenon, predating any concept of “Cloud”, but the challenges we faced then are still very relevant today.

The company was run by charismatic (more...)

Have a BI Publisher Story to Tell?

The BI Publisher SIG is gearing up for Collaborate 2016 in April and is looking for volunteers to share their experiences, tricks, tips, challenges, etc… with fellow users during our meeting in Las Vegas on Monday April 11th.  Do you have a story to tell?  Want to showcase a challenge?  Want to brag about an accomplishment?   We would love to have YOU, the actual user spend 10-15 minutes sharing your experiences/stories with (more...)

Understanding Flash: The Fall and Rise of Flash Memory


This month sees the four year anniversary of some interesting events. Commonwealth countries around the world celebrated the Diamond Jubilee of Queen Elizabeth II. Whitney Houston was tragically found dead in a Beverly Hills hotel. The Caribbean was hit hard by sargassum seaweed invasion. And I made the decision to leave the comfort of Oracle databases and join the exciting new All-Flash Array industry.

Ok, I might have been stretching the use of the word “interesting” there. But for those with (more...)

Understanding Flash: What is 3D NAND?


About 18 months ago I wrote a post describing the different types of NAND flash known as SLC, MLC and TLC. However, 18 months is a lifetime in the world of technology so now I need to clarify it based on the widespread adoption of a new type of NAND flash. Let me explain…

Recap: 2D Planar NAND

Until recently, most of the flash memory used for data storage was of a form known as 2D Planar NAND (more...)

All Flash Arrays: Hybrid Means Compromise


Sometimes the transition between two technologies is long and complicated. It may be that the original technology is so well established that it’s entrenched in people’s minds as simply “the way things are” – inertia, you might say. It could be that there is more than one form of the new technology to choose from, with smart customers holding back to wait and see which emerges as a stronger contender for their investment. Or it could just be (more...)

Postcards from Storageland: Pure Storage Cancels Christmas


Ho ho ho folks. It’s nearly Christmas Day, 2016 and it most definitely is the season to be jolly. It’s also an exciting time in the All Flash Array industry with NetApp announcing its intended acquisition of Solidfire for a reported $870 million. Merry Christmas to everyone at Solidfire!

Unfortunately those sentiments weren’t shared by Pure Storage’s VP of Product, Matt Kixmoeller, who published a blog on the subject of the acquisition which seemed a little on (more...)

Why Kaminario?


This summer I made the decision to leave my previous employer and join another vendor in the All Flash Array space – a company called Kaminario. A lot of people have been in touch to ask me about this, so I thought I’d answer the question here… Why Kaminario?

To answer the question, we first need to look at where the All Flash industry finds itself today…

The Path To Flash Adoption

We all know that disk-based storage has (more...)

All Flash Arrays: SSD-based versus Ground-Up Design


In recent articles in this series I’ve been looking at the architectural choices for building All Flash Arrays (AFAs). I surmised that there are three main approaches:

  • Hybrid Flash Arrays
  • SSD-based All Flash Arrays
  • Ground-Up All Flash Arrays (which from here on I’ll refer to as Custom Flash Module arrays or CFM arrays)

I’ve already blown metaphorical raspberries at the hybrid approach, so now it’s time to cover the other two.

SSD or CFM: The (more...)

Blog : Solutions Cloud Oracle

Retrouvez mon nouveau blog consacré aux solutions Cloud Oracle (Private, Public & Hybrid) :

OAUG BI Publisher SIG

First off, if you are not familiar with the term SIG, it stands for Special Interest Group.  OAUG facilitates a number of SIGs to bring users together that share common or industries concerning certain Oracle products.

Unfortunately, the BI Publisher SIG has been offline for a number of years and has not been given the attention it needs to be a useful resource for members of OAUG.  Well… I’m getting the band back together and (more...)

Annual Report from WordPress

Recently, I received my annual report from WordPress/Jetpack.  I have always enjoyed these reports, so I thought I would make it public.

For the complete report, view it here: PSST0101 – 2014 Year in Blogging

Here’s a couple of excerpts:

Crunchy numbers

Madison Square Garden can seat 20,000 people for a concert. This blog was viewed about 67,000 times in 2014. If it were a concert at Madison Square Garden, it would take about 3 (more...)

Blog : Cloud Community France

Intéressé par les solutions Cloud (IaaS & PaaS / Public & Privé) d'Oracle ?
Suivez le blog :

My lucky find for ORA-01720: Grant Option Does Not Exist.

Strangest thing happened the other day during a customer upgrade.  Our automated scripts were in the process of creating a view and I received the error:

ORA-01720: Grant Option Does Not Exist.

OK…..  I get it…  BUT…. I didn’t even execute a GRANT statement!?  I was just executing a CREATE OR REPLACE VIEW…. what gives?

Doing some searching online, I didn’t find too much that fit my issue.  Everyone was getting (more...)

Printing Attachments in Oracle 12.2: How does it Stack Up?

With the release of EBS 12.2, Oracle is making the claim that they have improved the attachment printing process. After reviewing the integration, I completely disagree; they have not given users a better solution.  No matter how you slice it, Oracle EBS customers are no further ahead with (more...)