Category: Tutorials

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How to install Fedora 30 in 10 easy steps

Fedora 30 is 2019 first release of developers’ favorite operating system, and it also may be one of the last ones before IBM acquires Red Hat. Packing cutting-edge features and pushing forward the whole Linux ecosystem...

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CephFS: a beginner’s guide

Ceph is the open source Software Defined Storage (SDS) king. By default Ceph stores objects, but did you know that you can use it to store files in a filesystem too? Or even replace Hadoop’s HDFS?...

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RBD storing images in Ceph for the beginner

Ceph is the open source Software Defined Storage (SDS) king. By default Ceph stores objects, how can you use it to store block devices such as virtual machines disks? For that purpose you can use RBD,...

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Ceph pools: a beginner’s guide

So you’ve got your Ceph cluster up and running but you don’t know your way around its innards. That’s perfectly fine, this guide is for you. Let’s learn how to manage a fundamental piece of Ceph:...

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How to install ceph with ceph-ansible

ceph-ansible is the most flexible way to install and manage a full-blown Ceph cluster. Whilst not the easiest way, it isn’t too difficult and can produce production-grade clusters. Let’s take a look.

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VDO: Linux deduplication and how to use it

Following Red Hat acquisition of Permabit Technologies, the former decided to release the latter proprietary technology: VDO, as open source. But what is VDO and how can you use it?