This tutorial shows how to set up network RAID1 with the help of DRBD on two Ubuntu 11.10 systems. DRBD stands for Distributed Replicated Block Device and allows you to mirror block devices over a network. This is useful for high-availability setups (like a HA NFS server) because if one node fails, all data is still available from the other node.

Pardus is a desktop-oriented Linux distribution with roots in the National Research Institute of Electronics and Cryptology (UEKAE), Turkey. Pardus 2011, the latest stable release, is the first to ship with a new installation program, which brings LVM and RAID support to Pardus. This article presents a detailed review of Pardus 2011, made available for download on January 20, 2011.

A few weeks ago I had the distinct displeasure of waking up to a series of emails indicating that a series of RAID arrays on a remote system had degraded. The remote system was still running, but one of the hard drives was pretty much dead.

This guide explains how to set up software RAID1 on an already running Debian Lenny system. The GRUB 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).

I have benchmarked various Linux filesystems using different blocksizes and workloads on an mdadm RAID 1 setup using two Western Digital 500 GB SATA 3.0 drives and a 3ware 9550XS 4-port hardware RAID card (which I had trouble getting to work initially). It's not as extensive as I would have liked, but I came across some interesting results.

This guide explains how to set up software RAID1 on an already running Debian Etch system. The GRUB 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).