Everybody knows the importance of a daily back-up. There are a lot of tools with fancy GUIs and useless information but sometimes the best is to keep it simple. Linux offers some very powerful build-in ways of creating a perfect backup. The scope is to create a secure incremental automatic daily backup without using fancy… Read More »
Using SSD drives is no longer an exception, they are used in home systems but also in server systems to hold at least the OS, or other resources that need more speed than space. As any other storage disk a SSD can become fragmented as successive write/delete operations will try to use the available storage.… Read More »
This is a follow-up tutorial on the DRBD replication posts about resynchronization of sites after the failed DR site is recovered. More than a year ago I described in a long tutorial how to use DRBD in a real production environment and the challenges associated to it. See: DRBD based disk replication of a production… Read More »
This is a follow-up tutorial on the DRBD replication posts about resynchronization of sites after the failed PR site is recovered (DRBD split brain recovery). More than a year ago I described in a long tutorial how to use DRBD in a real production environment and the challenges associated to it. See: DRBD based disk… Read More »
This is a follow up tutorial on the DRBD replication posts about promoting the DR site as the main site when PR is failed. More than a year ago I described in a long tutorial how to use DRBD in a real production environment and the challenges associated to it. See: DRBD based disk replication… Read More »
This is a follow up tutorial on the DRBD replication posts about gracious role switching of live sites configured with DRBD replication. More than a year ago I described in a long tutorial how to use DRBD in a real production environment and the challenges associated to it. See: DRBD based disk replication of a… Read More »
This is a continuation of the post Install a Nexus Repository. In the following I will describe how to deploy a raw maven repository for the docker-compose files, docker make files and other text files. This repository will be used as the main entry point to the docker repository. STEP 1: Create a raw repository… Read More »
I had the task to find a way to store centrally docker containers of enterprise applications. The following constraints had to be met: – the containers should be used for QA and training by people who do not need to know the details of deploying complicated enterprise application environments. Docker-compose files will be used to… Read More »
A very interesting distributed storage solution Infinit Storage Platform. So interesting that the small company that implemented it was bought by Docker. By the way it has a docker plugin so can be mounted as a volume in any docker container. Looks like a very nice way of having a distributed, high availability storage with… Read More »
In case your HP ILO is set to DHCP there is the need to find out what is the allocated IP in case you do not have access to the cosole. The easiest way is to use ipmi tools. STEP 1 : Install ipmi tools # dnf install ipmitools STEP 2: Load the ipmi kernel… Read More »