Ceph commands

Get status of monitors ceph quorum_status –format json-pretty Set the weight of a disk lower so it gets less IO, or use it to scale a disk in\out of a cluster ceph osd reweight osd.30 .01 –cluster mycluster Move an OSD to a node in the cursh map, usefull if your OSD comes up not […]

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Dealing with Spectre and Meltdown using Ansible

If we have to deal with this thing, lets do it in an intelligent way I’m using Ansible across my infrastructure to manage most stuff so I cut a playbook to detect Spectre and Meltdown fixes in Centos7 using the articles from CyberCiti.biz https://www.cyberciti.biz/faq/patch-spectre-vulnerability-cve-2017-5753-cve-2017-5715-linux/ https://www.cyberciti.biz/faq/patch-meltdown-cpu-vulnerability-cve-2017-5754-linux/ – hosts: all become: yes become_user: root pre_tasks: – name: […]

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