Full table scan runs way slower today!
Every so often a DSS query that usually takes 10 minutes ends up taking over an hour. (or one that
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Making Technology Bulletproof
NFS Performance Issues at TCP level
What happens with I/O requests over NFS and more specifically with Oracle? How does NFS affect performance and what things
Read MoreRight Deep, Left Deep and Bushy Joins in SQL
What is right deep verses left deep? Good question. In join trees (not VST) the object on the left is
Read MoreREPVFY Diagnostics, Part II of a Zillion
We are back to REPVFY, (Repository Verification Utility) this week, (first post can be found here…) And I’m onto the
Read MoreASH Analytics- Viewing Activity Combinations
When working with Top Activity, we’re accustomed to viewing to wait class in the top, graphed area and below left, the
Read MoreDelphix shines sunlight in data’s cloudy skies
About year ago or more, Oracle came out with a way to create thin clone copies of a database in
Read MoreTop Misconceptions about DBaaS Snapclone
The last couple weeks I’ve been lucky enough to get time with a new ZFSSA Simulator, (it will be out
Read MorePerformance Testing with Agile Data
Performance testing requires full, fresh data Many organizations don’t even attempt to test performance until very late in their development
Read MoreASH Analytics- Tracking Down an Issue, Part I
This is the first of many posts I’ll do where we take a particular issue and trouble-shoot. I’ll go through
Read MoreREPVFY Diagnostics, Part I of…Well, A Zillion
There are a number of Verification Utilities for Enterprise Manager 12c, (EM12c) and I’ve written about them before, but today
Read MoreEM12c Utilizing After Hours Notification Schedule- Part II
Now that we learned in Part I how to create a notification schedule for a specified user so that it
Read MoreOEM After Hours Notification Schedule Option- Part I
I came across a discussion on Oracle-l on how after hours paging was handled for many companies and was kind
Read MorePerformance live discussion on twitter, 12pm PST Tue April 15
Followup: The tweets from the datachat are available at http://www.confio.com/logicalread/oracle-db-performance-80-percent-hardware-dc01/ in chronological order. Confio software is hosting a live
Read MoreEM12c Auditing
Lately I’ve been having more discussions on securing the EM12c environment. All of IT has a tendency to treat the
Read MoreMaximum manageable storage in VMware versions
Maximum manageable storage per VM by ESX version 4.1: 32TB (vmdk) / 120TB (RDM) 5.0: 60TB (vmdk) / 3.75PB
Read MorePresentation Slides for IOUG Collaborate
I know that folks have been having some challenges downloading my slides from Collaborate for a couple of my sessions
Read MoreADDM Compare in EM12c
I’m often present to overhear comments like the following when issues arise: I *think* someone changed something. I bet some
Read MoreOUGN- Yes, I Get to be Julie the Cruise Director!
Tim and I leave for Oslo on Monday for the OUGN, (Oracle User Group Norway) conference. This is a great
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