This article demonstrates how to add and remove a disk from a virtual machine running in KVM. We’re using CentOS 6 but the same works with CentOS 7. First list the disks attached to the virtual machine before we add the new disk. Run the following command while logged into
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We have a server with a bunch of hard disks that need to be combined to create one large filesystem. Further to that, we want some redundancy so we’ll need RAID. In our case, we’ll be using RAID 6. In this walk-through, we’re using a CentOS 7 server with 7
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Business Continuity Planning is critical for transactional businesses more-so than non-transactional businesses. What do I mean by “transactional”? If you process things in real time such as sales of products or processing packages for shipment, you are transactional. The reason transactional businesses need to consider business continuity to a greater
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This article shows how to create a custom AWS IAM policy to allow snapshots. The first code snippet is what works but as you can see, it’s liberal. The second snippet is what “should” would but doesn’t. I’d love some feedback on this. This works but is too broad: {
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This article will help you if you’re receiving any of the following error messages. The short answer is that you need to reboot the server. Please add a comment if this helps you. I’d love some feedback to know if this is for Azure only. Can’t connect to system DBus:
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This article demonstrates how to downgrade an RDS MySQL instance from multi-availability-zone (Multi-AZ) to a single instance (single zone). The process is simple and worked well in my test. If I was to do this in a production environment, I would a) dump the database first just in-case the process
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The Australian lawmakers are passing laws that progressively take away privacy of the citizens of this country. The most recent successful attempt to increase the powers of the security agencies focuses in “encrypted message interception” which, in effect forced technology companies to assist security agencies with message interception. Exactly how
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This article extends on a previous article focused on installing and performance testing Gluster on CentOS 7. You can see that article here. Here we’ll be focusing on installing Samba4 and using Gluster as the back-end storage solution. We could use the Gluster FUSE method but Samba4 comes with a
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Gluster is an amazing Software Defined Storage (SDS) solution offered as part of the Redhat solutions portfolio. Here we push Gluster to see how it performs in different circumstances to help you understand the benefits and value of Gluster in your business. You can see the next article in this
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This article discusses the installation of Janus on a Redhat Enterprise Linux 7 server. The installation process is long and complicated due to the dependencies required for Janus and their lack of inclusion in Yum repositories. The steps below require come code compiling. The process is simple but may be
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