DBA Kevlar

Tips, tricks, (and maybe a few rants) so more DBAs become bulletproof!

How to Use an ASH Report and Why

Active Session History, (ASH) reports are one of my favorite when investigating a performance issue.  The biggest challenge I think that faces many administrators is to know when to turn to an ASH report and how to use the report to diagnose an issue. Today’s example is brought to us thanks to a Workload replay […]

Working With AWR Reports From EM12c

I’ve had a recent request to write an update on working with AWR reports, so as promised, here it is! The Automatic Workload Repository The Automatic Workload Repository, (AWR) was one of the best enhancements to Oracle back in release 10g.  There was quite a goal put in front of the development group when they […]

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Enterprise Manager and Services, Part I

The term “Service” is used to represent numerous objects within Enterprise Manager 12c.  Although the most common reference to the term is related to the Oracle Management Service, (OMS), in this blog post, we are going to drill down and refer to all services identified in the drop down menu from Targets, Management Services and Repository. The two […]

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Cluster Cache Coherency in EM12c

January is winding down and RMOUG Training Days 2015 is just around the corner, taking up much of my after work hours. With that, we are going to discuss a great performance console in the EM12c cloud control-  Cluster Cache Coherency. Cluster Cache Coherency Optimization for an Oracle Real Application Cluster, (RAC) can be a […]

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AWR Warehouse and SYSDBA

I’ve had a few folks ask me a similar question about the AWR Warehouse, occuring numerous times this week. “How can I limit what the user of the AWR Warehouse can view in the AWR Warehouse?” “How can I add source databases to the AWR Warehouse without DBA privileges?” This topic bridges into the area […]

Why Automate Target Patching with Enterprise Manager 12c

Every job comes with tasks that no one likes to perform and database administration is no exception.  Patching is one of those necessary tasks that must be performed and when we are expected to do more with less everyday, the demands of patching another host, another agent, another application is often a task that no […]

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2014 Year in Review

As many bloggers and sites do this time of the year, here is my review of 2014. It was a great year and it was a lot of fun, as well as educational reviewing all the data. DBAKevlar Blog Busiest Day on my Blog: Posts this year: Most popular post of 2014:  Easy EM12c Agent […]

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The Right Tools for the Job

I chose to work for Oracle because I wanted to immerse myself in the Oracle Enterprise Manager product.  It was the right place for me.  It didn’t matter that I had a background as a multi-platform DBA or that I my skill set was deeply involved in optimization of complex, large databases.  I knew it […]

EM12c and the Optimizer Statistics Console

Today we’re going to review another great feature in the EM12c that you may not have realized was available.  Once logged into a database target, click on the Performance menu and navigate to the Optimizer Statistics Console: Optimizer Statistics Console Page The new console page is clean, easy to navigate and has great access points […]

RMOUG Training Days 2015!

OK, Oracle EM hat off, RMOUG Training Days hat on! So as many of you know, RMOUG Board of Directors made the smart move after I joined Oracle, instead of losing a valuable member of the board, they moved me to being a non-voting board member emeritus and realized that I could still serve as […]

EM12c Management Agent, OutOfMemoryError and Ulimits

While enjoying the lovely Liverpool, UK weather at Tech14 with UKOUG, (just kidding about that weather part and apologies to the poor guy who asked me the origin of “Kevlar” which in my pained, sleep-deprived state I answered with a strange, long-winded response…. :)) a customer contacted me in regards to a challenge he was […]

OMS and OMR Performance- Part III, Metrics Page

Before heading off to UKOUG’s Tech 14 conference, thought I would jump back from the Agents performance page and look into the very important page in the Oracle Management Service, (OMS) and Oracle Management Repository, (OMR) regarding metrics.  Standard metrics collection is demanding in itself, so when we add plugins, metric extensions and manual metric […]

Agents Management Via EM12c Release 4 Console

I’m going to take a break from the OMS/OMR Performance pages and jump over to the Agents page in release 12.1.0.4.  You can access this page from the Setup menu drop down in EMCC: Main Agent Management Page The Agents Management page will default to show you all agents and looks very similar to the […]

Why Women Should Consider a Smartwatch

I keep having this conversation over and over, in retail stores, restaurants and other establishments- women coming up to me and asking, “Can you tell me about that watch you have on?” It made me realize that it could be really intimidating to: 1.  Ask questions of the sales staff in most stores. 2.  The […]

Retrieving Bind Values from SQL Monitor in EM12c Release 4

I know others may want to know how to do this and I had challenges until Gagan Chawla, a teammate from Oracle, was kind enough to point out how to still get to this hidden, little gold nugget, so I’m posting it here for others! Up till database plug-in 12.1.0.5, while in SQL Monitor SQL […]

Removing Redundant Startup/Restart for the OMS Service in Windows

I’ve been told many times that the OMS for EM12c can take quite some time to start on Windows.  Some told me it took anywhere from three to up to fifteen minutes and wanted to know why.  I’ve done some research on the challenge and it is a complex one. Let’s start this post by […]

EM12c, Rel. 4, OMS and OMR Health, Part II

There are a large number of “moving parts” when performance tuning or trouble shooting an Enterprise Manager environment.  The new EM performance features, (available in release 12.1.0.4) are there to assist you in understanding the source of the issue and can really make the difference for those that are unfamiliar with the challenges of Weblogic, […]

Oracle Enterprise Manager 12c Command Line Interface is Available!

The new Oracle Enterprise Manager 12c Command Line Interface book is available via a number of locations, including Amazon and directly from Apress.  If you are an EM12c fanatic or just learning and want to learn more, consider the new book that will show you why the command line returns the DBA to the golden […]

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