I just finished an interview with a friend for a blog post where he was surprised how differently I was viewed in the Oracle community, (a multi-platform DBA who wasn’t very loyal to Oracle like she should be) vs. the Microsoft community, (that odd Oracle girl.) The truth is, I’ve always enjoyed database technology and few know that my first database (MSSQL 6.5) as well as my first book was in Microsoft SQL Server (Pro SQL Server 2012 Practices). I’m not platform centric at all, work mostly in Oracle, SQL Server/Azure SQL and MySQL, but I’m just CUSTOMER centric. Azure…
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We’ll start with a disclaimer here- this is my experience and my opinion. NO ONE ELSE’S, just as any link to any blog in this post is. Take it or leave it, I really don’t care, never have, never will- never been one to follow any drummer but my own anyway. 😊 Although the basis for calculating database management systems percentage of business is highly contested, there isn’t anyone contesting Oracle as having the largest percentage of the current database management system business. Don’t confuse this with cloud business or other technology platform- those are two different things. One such…
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This is the Part III in a four part series on how to: Enable VNC Viewer access on Amazon EC2 hosts. Install DB12c and upgrade a Dsource for Delphix from 11g to 12c, (12.1) Update the Delphix Configuration to point to the newly upgraded 12c database and the new Oracle 12c home. Install DB12c and upgrade target VDBs for Delphix residing on AWS to 12.1 from the newly upgraded source. In Part II, we finished upgrading the Dsource database, but now we need to get it configured on the Delphix side. Log into the Delphix Admin console to make the…
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So you thought you were finished configuring your AWS target, eh? I already posted a previous time on how to address a fault with the RMEM, but now we’re onto the WMEM. Wait, WM-what? No, I fear a DBAs work is never over and when it comes to the cloud, our skill set has just expanded from what it was when we worked on-premise! Our trusty Delphix Admin Console keeps track of settings on all our sources and targets, informing us when the settings aren’t set to what is recommended, so that we’ll be aware of any less than optimal…
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So you’ve deployed targets with Delphix on AWS and you receive the following error: It’s only a warning, but it states that you’re default of 87380 is below the recommended second value for the ipv4.tcp.rmem property. Is this really an issue and do you need to resolve it? As usual, the answer is “it depends” and its all about on how important performance is to you. What is net.ipv4.tcp.rmem? To answer this question, we need to understand network performance. I’m no network admin, so I am far from an expert on this topic, but as I’ve worked more often in…