LVM: DEVICE /DEV/SDX EXCLUDED BY FILTER If you have created a new VD using a disk or group of disks that were previously partitioned, you may see a message like this when you try to initialize the virtual disk for LVM. # pvcreate /dev/sdd Device /dev/sdd excluded by a filter. If filter is correct (/etc/lvm/lvm.conf) and old partition table information […]

Cockpit packages

Package Name Purpose cockpit-docker Managing Docker Containers cockpit-kubernetes Visualizing and Configuring Kubernetes Cluster cockpit-machines Manage KVM Virtual Machines cockpit-sosreport Create diagnostic report with the sosreport tool cockpit-selinux Troubleshoot SELinux Issues cockpit-kdump Configure Kernel Crash Dumps cockpit-subscriptions Manage System subscription cockpit-machines-ovirt Manage oVirt Virtual Machines cockpit-pcp Reading PCP metrics and Loading PCP archives

Disk > Mdadm > LVM

lsblk -o NAME,SIZE,FSTYPE,TYPE,MOUNTPOINT mdadm -D /dev/md127 watch cat /proc/mdstat # Create vg1 vgcreate vg1 /dev/md127 # Create lg disk lvcreate -L 150M vg1 -n lv1lvcreate -L 150M vg1 -n lv2lvcreate -L 150M vg1 -n lv3 lvs lvdisplay mkfs.ext4 /dev/vg1/lv1 mkfs.ext4 /dev/vg1/lv2 mkfs.ext4 /dev/vg1/lv3 mkdir /home/lv1 && mount /dev/vg1/lv1 /home/lv1 mkdir /home/lv2 && mount /dev/vg1/lv2 /home/lv2 […]

How to Backup AWS S3 Buckets The S3 Backup Challenge When migrating a large file system to AWS S3, One of the surprising challenges is the implementation of a backup strategy.  With file-system based storage, you often back up the disk with periodic snapshots (daily, weekly, monthly, etc).   There is comfort in knowing that you have a plethora of time capsuled copies stored away and, in […]

Install minio Ubuntu

Minio is a self-hosted solution for creating your own Object storage. It is an alternative for AWS S3, if you have used that service before. The Minio software itself is shipped as a plain binary and even the official documentation suggests you to use it that way, instead of using a package manager. There are, […]

restic with MinIO Server restic is a fast, efficient and secure backup tool. It is an open source project available under BSD 2-Clause License. In this recipe we will learn how to use restic to backup data into MinIO Server. 1. Prerequisites Install MinIO Server from here. 2. Installation Install restic from 3. Configuration Set MinIO credentials in the environment variables as shown […]