Radu, thank you for helping me with this problem! My beloved power distribution company had always have problems. It is common thing to have a power outage up to half an hour every few weeks. Lately however, the problems increased in rate and gravity. I don’t know exactly what happened last time, but there were 2 … Continue reading mdadm refuses to re-add failed member
Create a new RAID array Create (mdadm –create) is used to create a new array: or using the compact notation: /etc/mdadm.conf /etc/mdadm.conf or /etc/mdadm/mdadm.conf (on debian) is the main configuration file for mdadm. After we create our RAID arrays we add them to this file using: or on debian Remove a disk from an array … Continue reading MDADM Cheat Sheet
It’s a good idea to create bitmaps for RAID device that are stored internally (storing bitmap files on other filesystems may result in serious problems). Bitmaps slightly impact throughput but significantly reduce the rebuilt time when the array fails.
This guide explains how to set up software RAID1 on an already running Linux (Ubuntu 12.10) system. The GRUB2 bootloader will be configured in such a way that the system will still be able to boot if one of the hard drives fails (no matter which one). Preliminary Note In this tutorial I am using … Continue reading How to migrate a single disk Linux System to software RAID1
This document describes how to install XenServer 6.0.2 on a node without hardware raid. Install Software Install XenServer 6.0.2 on /dev/sda and do NOT configure any local storage (it is easier to do that afterwards). /dev/sda should containt three partitions, please verify with the following command: The first partition is used for XenServer installation, the … Continue reading Xen 6.0.2 software Raid – installation procedure