8.19.2015

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 size. I am pretty sure, many of you might have done and want to do the same. However, shrinking/rebalancing the space is not like a normal ASM resize operation on Exadata, it needs some special consideration and tasks. The following Oracle Support Notes has the better explanation and examples to achieve the task.

Example of dropping RECO diskgroup and adding the space to DATA diskgroup (Doc ID 1905972.1)
NOTE:1465230.1 - Resizing Grid Disks in Exadata: Example of Recreating RECO Grid Disks in a Rolling Manner
How to increase ASM disks size in Exadata with free space in cell disks (Doc ID 1684112.1)
Resizing Grid Disks in Exadata: Examples (Doc ID 1467056.1)



7.13.2015

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.  

1.09.2015

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.