Storage

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Using ATA Over Ethernet (AoE) On Debian Lenny (Initiator And Target)

Using ATA Over Ethernet (AoE) On Debian Lenny (Initiator And Target)

This guide explains how you can set up an AoE target and an AoE initiator (client), both running Debian Lenny. AoE stands for "ATA over Ethernet" and is a storage area network (SAN) protocol which allows AoE initiators to use storage devices on the (remote) AoE target using normal ethernet cabling. "Remote" in this case means "inside the same LAN" because AoE is not routable outside a LAN (this is a major difference compared to iSCSI). To the AoE initiator, the remote storage looks like a normal, locally-attached hard drive.

Using iSCSI On Debian Lenny (Initiator And Target)

Using iSCSI On Debian Lenny (Initiator And Target)

This guide explains how you can set up an iSCSI target and an iSCSI initiator (client), both running Debian Lenny. The iSCSI protocol is a storage area network (SAN) protocol which allows iSCSI initiators to use storage devices on the (remote) iSCSI target using normal ethernet cabling. To the iSCSI initiator, the remote storage looks like a normal, locally-attached hard drive.

High-Availability Storage Cluster With GlusterFS On Ubuntu

High-Availability Storage Cluster With GlusterFS On Ubuntu

In this tutorial I will show you how to install GlusterFS in a scalable way to create a storage cluster, starting with 2 servers on Ubuntu 8.04 LTS server. Files will be replicated and splitted accross all servers which is some sort of RAID 10 (raid 1 with < 4 servers). With 4 servers that have each 100GB hard drive, total storage will be 200GB and if one server fails, the data will still be intact and files on the failed server will be replicated on another working server. GlusterFS is a clustered file-system capable of scaling to several peta-bytes. It aggregates various storage bricks over Infiniband RDMA or TCP/IP interconnect into one large parallel network file system. Storage bricks can be made of any commodity hardware such as x86-64 server with SATA-II RAID and Infiniband HBA.

DRBD 8.3 Third Node Replication With Debian Etch

DRBD 8.3 Third Node Replication With Debian Etch

The recent release of DRBD 8.3 now includes The Third Node feature as a freely available component. This document will cover the basics of setting up a third node on a standard Debian Etch installation. At the end of this tutorial you will have a DRBD device that can be utilized as a SAN, an iSCSI target, a file server, or a database server.

How To Resize LVM Software RAID1 Partitions (Shrink & Grow)

How To Resize LVM Software RAID1 Partitions (Shrink & Grow)

This article describes how you can shrink and grow existing software RAID1 partitions with LVM on top. I have tested this with logical volumes that use ext3 as the file system. I will describe this procedure for an intact RAID array and also a degraded RAID array.

How To Configure Software RAID To Send An Email When Something's Wrong With RAID

How To Configure Software RAID To Send An Email When Something's Wrong With RAID

This short guide explains how you can configure software RAID to send you an email when something's wrong with RAID, for example if a hard drive fails. I've tested this on Debian Etch, but it should apply to all other distributions with minor adjustments to paths, etc.

Creating A Dual-Boot System On RAID10 (Ubuntu/Windows)

Creating A Dual-Boot System On RAID10 (Ubuntu/Windows)

I just bought a new computer and I want to run Ubuntu 8.10 and Vista. I'm really afraid to loose some of my data when a harddrive dies, so I decided to go for a RAID10-setup. Most modern motherboards support RAID0,1,5 and 10. After assembling my new computer, I discovered that the motherboard didn't have a true hardware-RAID-controller. Instead it's just software-RAID, sometimes called fakeraid. If I was installing a Linux-only-system, I wouldn't care and just use the Linux software-Raid options. But this time, my system has to be dual-boot.

Set Up A Fully Encrypted Raid1 LVM System (Lenny)

Set Up A Fully Encrypted Raid1 LVM System

For this Howto I use Debian Lenny (still testing and not "stable" for the simple reason as - contrary to Debian Etch and/or Ubuntu 8.04/8.10 - the install routine does setup the initrd correctly so that you can set up encrypted swap and also an encrypted raid1 lvm during install). This Howto will be heavy on screen shots again - a lot of them are repetitive as I setup multiple partitions at once. Basically I will set up the system in a way that (a) everything [except for /boot] will be encrypted, (b) everything will be on a raid1 and (c) have a LVM for your data partition so that this one can be easily expanded.

Samba + Clamd + Samba-Vscan On CentOS 5.2

Samba + Clamd + Samba-Vscan On CentOS 5.2

This is a howto on getting samba + clamav + samba-vscan to work on a CentOS 5.2 system.

Installing and Configuring Openfiler with DRBD and Heartbeat

Installing and Configuring Openfiler with DRBD and Heartbeat

Openfiler is a high performance operating system tailored for use as a SAN/NAS appliance. This configuration will enable two Openfiler appliances to work in an Active/Passive high availability scenario.

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