New ORAchk & EXAchk Versions 12.2.0.1.1 Released


New ORAchk & EXAchk v12.2.0.1.1 release is out now with so many new features. Its easy to use and upgrade.

Below is the blog entry about the new release and features by RAC Assurance Development team at Oracle:

https://www.linkedin.com/pulse/new-orachk-exachk-versions-122011-released-gareth-chapman?trk=hp-feed-article-title-publish

Upgrade yourself from DBA to DMA

In any profession, learning never ends. From my very personal perspective and own exprience, I strongly beleinv in one who upgrade his skills always stays a step ahead from the rest. To stay competitive, it is necessary to upgrade our skills according the market demand.

For DBA folks who aim and dream to learn and upgrade their knwoledge with Oracle Exadata technologies, I wrote a 5 series article to Toad, below are the links to (more...)

E-book: Discover the breakthrough innovations in Oracle Database 12c

Download the eBook and read to learn about 12c (the next generation most popular database) :

  • Simplify database consolidation and manage them as cloud services
  • Accelerate analytical performance whilst achieving new levels of efficiency, security and availability
  • Lower cost and mitigate risk




AIOUG Sangam’16 – India’s largest Annual Oracle Confernece – DON’T MISS IT

AIOUG Sangam'16, India's largest annual Oracle conference, to be held in Bangalore this year during 11th and 12th November.

I am glad and super excited to present and attend the conference. I am going to present the following two sessions:


  • Exadata Migration Recipes - Secret Sauce for a Tasty Migration
Abstract
The purpose of this presentation is to provide real-world augmented database migration procedures that allowed us to successfully achieve the migrations of 54 (more...)

How to view database patching information in Oracle 12.1.0 and higher

We are currently engaged with an assignment to migrate over 50 productions database to Exadata of different sizes , different OS and different business priority. Each passing day, we encounter some technical challenges and of course each situation educates and adds more knowledge.

I would like to share a small post on how to list/view the patching information  in Oracle >= 12.1.0 version:

As of 12.1.0.2, you can extract the (more...)

Learning curve (Oracle 12c Multitenant, Oracle Cloud & Golden Gate)

First thing first. After almost 8 yrs of successful tenure at my previous company, I have moved on to new challenges from 1-Mar-2016. Joined eProseed KSA as Technical Director where my prime responsibility is to involve in pre-sales, technical planning, motivating teams and hands-on technically in critical projects. I must say, this is what I was looking for a very long time and I am sure I gonna enjoy my new role very much.

Over (more...)

Storage difference between 2 identical Exa boxes. How and why?

We noticed around 1.6TB storage difference between two Eight (1/8) Exadata boxes while configuring Data Guard. Wondered what went wrong. The Exa box configured for DR was around 1.6TB short compare to the other Exa box. Verified the lun, physical disk and grdidisk status on a cell, which showed active/online status. The tricky part on Exadata is, everything has to be active/online across all cell storage servers. We then figured-out that grid disk status on (more...)

Gather system stats on EXADATA X4-2 throws an ORA-20001,ORA-06512

After a recent patch deployment on Exadata X4-2 system, the following error encountered whilst gathering system stats with Exadata mode (dbms_stats.gather_system_stats('EXADATA')):

SQL> exec dbms_stats.gather_system_stats('EXADATA');
BEGIN dbms_stats.gather_system_stats('EXADATA'); END;

*
ERROR at line 1:
ORA-20001: Invalid or inconsistent input values
ORA-06512: at "SYS.DBMS_STATS", line 27155
ORA-06512: at line 1

It appears to be a BUG, and the following workaround should resolve the issue:

(1) As SYS user execute the scripts below:

(more...)

Shrink/Grow Exadata diskgroups

One of the important tasks that I foresee after an initial Exadata deployment is, mostly prior to DB in production, is to balance/resize the Exadata diskgroups (DATA & RECO).  Generally, the space is distributed as 80(DATA), 20(RECO) or 40(DATA), 60(RECO), depending on the database backup option you choose while deploying. In one of our Exadata setups, we don't need such a huge RECO size, hence, we shrunk the RECO size and increased the DATA diskgroup (more...)

Oracle Exadata Database Machine Implementation Essentials – Exam cleared

I have cleared my 'Oracle Exadata Database Machine Implementation Essentails' exam on 9-July-2015. This has been really one of the good weeks of my life. My latest Oracle book, 'Oracle Exadata Expert's Handbook' was released on 6-July-2015, passed the exam on 9-July-2015, can't ask for more.

Thank you my dears and nears.

Oracle Exadata Expert’s Handbook – is out now

I am happy to share a good news with the Oracle community today. Our latest book 'Oracle Exadata Expert's Handbook' authored by well-known Oracle gurus is hit the racks on 6-July-2015.

Contents if you wish know what has been covered in this book



Order your copy now at Pearson or Amazon

We hope the book will meet your expectations and will add more knowledge your skill set.  

Toad world’s Oracle Pro for January 2015 – truly honored

Thank you Toad for honoring me with 'Toad World's Oracle Pro for January 2015'. I am indeed truly touched for the honor.


http://www.toadworld.com/platforms/oracle/default.aspx?Redirected=true

I thank my family, all friends, colleagues, Oracle community, my readers, Chris and Steve Hilker from Toad for your support and encouragement.

AIOUG annual Oracle conference – SANGAM14

All India Oracle User Group (AIOUG) annual Oracle conference Sangam14 is less than 10 days away. This is the largest Oracle conference that take place every year in different cities of India with thousand's of attendees plus over 100 different topics by many Oracle experts across the globe.

This year's SANGAM is scheduled on Nov 7,8,9 in Bangalore city. Don't let the opportunity go vain, avail/grab the opportunity if you are in India. I am (more...)

Oracle 11204 Clusterware upgrade – ASM glitch

Yet another tough challenge thrown at my team right after the disaster recovery (DR) simulation drill which performed barely couple of weeks ago. The new task (challenge) in hands is to upgrade the existing four cluster environments from 11.2.0.2 to 11.2.0.4 as Oracle already stopped supporting v11.2.0.2.

Although last week we had a 3 node successfully upgrade track record, we encountered ASM upgrade troubles whilst running (more...)

Disaster Recovery Simulation test – performed 30 databases failover

Successfully switched (fail-over) the role of over 30 physical standby databases  this morning as part of the Disaster Recovery (DR) simulation test. Fortunately, there were no technical glitches and hassles during the course of testing as  anticipated. It was indeed a great test and very successful one too.

The next  big challenge to the team would be reconstructing and making in sync those 30 physical standby databases whose range from 100GB to 5TB size.

Anyways, (more...)

EID Holidays and things to do

Looking forward to a much anticipated 9 day EID holiday break to complete the to-do-list which I have been carrying for a while now. Determined to complete some of the writing assignments that I have kept pending for a long period of time now. At the same time, will have to seek the possibilities to exploring the new features of v12.1.0.2 and Exadata as we might we going for the combination in (more...)

Monthly article publication on Toad World portal

Let me quickly give you an update if you are wondering why I kept clam, not making much buzz on my blog. Well, over the past one year or so, I have been contributing monthly articles to Toad World news letter, and all my articles are published at their portal. I must encourage you all to visit Toad World website where many Oracle Experts/Gurus contributing/sharing knowledge.

Middle East & North Africa (MENA) 2014 OTN Tour – Tunis/Riyadh/Jeddah/Dubai

First ever MENA OTN Tour is scheduled From 26-May to 1-June 2014 in Tunis/Saudi Arabia/Dubai major cities.

2 Continents, 3 Countries, 5 Cities:50+ Action-Packed Oracle Sessions.
Courtesy of the Oracle Technology Network (OTN) and the ARABOUG, the inaugural 2014 OTN MENA Tour brings a star-studded cast, consisting of some of the world's best Oracle (more...)

Middle East North Africa (MENA) OTN Tour – May 26 – June 1

Middle East North Africa (MENA) OTN Tour, scheduled through May 26 until June 1 in Tunisia, Saudi Arabia and Dubai countries.

More updates about agenda, registration will be published very shortly. Stay tuned.

Oracle 11g upgrade and SYS.AUD$ obstacles

During one of the Oracle 10gR2 databases manual upgrade to Oracle 11gR2 couple of days ago, to our own surprise, the upgrade procedure took nearly 5.34 hrs to finish. Although we had done earlier 100's of database manual upgrades comfortably within 2 hrs time window for individual database, the delay indeed surprised us this time. Unfortunately, there is no log that could help us understanding what is really going on. We started investigation the (more...)