Success is about Imagination

Allocate on Write Thin Cloning Three challenges specifically stand out when considering Copy on Write filesystem snapshots described in...

Write Anywhere File Layout (WAFL) With EMC, thin cloning can only be achieved by using backup technology; in essence, the process has to...

Copy on Write Copy on write is a storage or filesystem mechanism that allows storage or filesystems to create snapshots at specific...

A production database is full of data that makes sense for its purpose, whether the database is 10GB or 10TB. Now if you take that...

I. “The Database is hanging!” AKA “the application has problems, good grief” I wonder if you can imagine, or have had the experience of...

How long does it take you to make a copy of production, find the sensitive data, mask that data and then make multiple copies for...

One thing I’ve failed to clearly document is that my tool ASHMON not only graphs ASH data but graphs v$sysstat as well. To access...

How does one clone in a few minutes and for almost no storage the entire EBS stack including the database, EBS application stack and...

Companies rely on applications to supply the information that business uses to make decisions that generate revenue. Companies are...

I love this video on “getting dreadful database performance” by Stephane Faroult. The video is hilarious and informative:...

One  small but bothersome  issue I’ve had for 20 years is  how to drive a program like SQL*Plus with a shell script to make it...

Oracle wait events took years to become widely known for their power in performance tuning. Similarly it has taken years for most DBAs to...

Any intelligent fool can make things bigger and more complex. It takes a touch of genius – and a lot of courage – to move in the opposite...

Yahoo shut  Altavista down a couple of years ago. Why did Google succeed when Altavista had index the web before Google ever started? Dan...

Dates are a surprising pain for correlating data an at the same time being understandable to the human reader. For a generic form we can...

DBA_HIST_EVENT_HISTOGRAM has a history of I/O latency histograms. DBA_HIST_EVENT_HISTOGRAM is only on 11g, so for 10g, it requires...

Can you version control database? How do you manage databases in application development?  For all the advances in application...

When mounting NFS file systems there is an option to set the max rsize requested. For example: mount -o rsize=1048576,wsize=1048576,proto...

A customer  was working with a clone copy of their production database for reports, but the cloned database reports were running slower...

Every so often a DSS query that usually takes 10 minutes ends up taking over an hour.  (or one that takes an hour never seems to finish)...