I recently installed VMware’s vSphere CLI 5.1 tools on a CentOS 6 x86_64 VM. Despite the rather reassuring documentation released by VMware, installing these tools was no simple task. I will outline the steps that I took for a successful installation of the vSphere CLI software, as some of it is not very obvious, especially for beginners.
GlusterFS Tips and Tricks CentOS
3I’ve been playing around with the latest stable release of GlusterFS, currently 3.3.1, for the last couple of weeks. GlusterFS is a scale-out cluster storage system that is extremely easy to setup and get running. However, during my short time working with it, I’ve stumble across a few items that were a little tricky to solve, and not well documented in the FAQ or elsewhere (that I found).
Problem: Attaching a Peer
The first problem I ran into was the inability to successfully attach a peer. After running gluster peer attach gluster-node2 I would receive “Probe unsuccessful” “Probe returned with unknown errno 107″ Suffice to say that when an application gives you an “unknown error” it is very demoralizing. Especially if you read Gluster’s documentation about how easy it is to setup. If you check in /var/log/glusterfs/etc-glusterfs-glusterd.vol.log you can generally find some text that points to the problem.
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Linux Cloud Technologies 2013
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Build The Cloud On Linux!
Build the cloud on Linux! This year looks very promising for Linux when it comes to building your private cloud using open source technologies. Finally, Linux-based software and applications for building and managing your private cloud are coming to maturity. Look forward to more articles on creating and integrating your Linux Cloud throughout 2013!
On this page, you will find brief overview / review of different technologies available today that can help you move forward with building a successful cloud deployment.
KVM and GlusterFS 3.3.1 performance on CentOS 6
6Currently I am testing the usability and performance of GlusterFS as a suitable virtual image store for the KVM hypervisor on Centos 6.
Setup:
Hypervisor: Centos 6 x64, AMD Phenom II 1090T, 16G RAM DDR3 1033mhz. HDD: 7200RPM SATA II.
Storage Node: Fedora 18 x64. HP Proliant DL380 G4. 4G RAM DDR. RAID 1 SAS 10k.
VM-remote: Debian 6 x64. 2G RAM, 2 Virtual CPUs. RAW 8G disk on glusterfs volume.
VM-local: N/A (coming soon)
Network: Direct patch 1Gbps ethernet.
Configuring CentOS 6 Web Server
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In this article, I’m going to be outlining the steps to install and configure a complete web server on a base install of CentOS 6. (Which should be compatible with Scientific Linux 6 as well as Red Hat Enterprise Linux 6)
I personally don’t prefer to install package groups relating to “LAMP” or similar during initial installation because I’m simply too lazy to review each and every package that is included in those groups, and what the dependencies are. By installing the required packages using yum, this allows you to install just the software you’re looking for, without worrying about dependencies. This software stack is time tested; we’ll install on CentOS’s latest release, and test a few popular applications while we’re at it! (more…)
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