Linux Tutorials on the topic “linux”

• Expanding A Root-FS

  Author: gbi • Tags: centos, linux, storage • Comments: 3

  Expanding A Root-FS There might be the situation, that your root filesystem runs out of space, so it has to be expanded. With filesystems other than the root filesystem this could easily be done for instance with gparted. With the root filesystem this is not possible, as gparted could only expand filesystems that are not mounted, which is impossible with the root filesystem. The only way to enlarge the root filesystem is to boot from a kind of rescuesystem, Live-CD or the like, and then to expand the root filesystem. The following tutorial describes, how this is achieved by using Systemrescue-CD.

  read more... | view as pdf

• Setting Up LVM On Top Of Software RAID Subsystem - RHEL & Fedora

  Author: SKRHCE2006 • Tags: linux, fedora, storage • Comments: 1

  Setting Up LVM On Top Of Software RAID Subsystem - RHEL & Fedora Here is a quick look how to build an LVM on top of RAID 1 array, so that we combine the power of these two. This kind of setup is extremely useful in situations where we want a file server to store large amounts of data which provides a centralized backup, storage space for downloadable files via ftp/http, and that may grow enormously in the coming years after the initial setup.

  read more... | view as pdf

• Creating Portable DiskSafes With LoopbackFS And LVM Snapshots

  Author: tabination • Tags: linux, storage • Comments: 0

  Creating Portable DiskSafes With LoopbackFS And LVM Snapshots This is the "DiskSafe" idea used to store backups of server data. This could be used to replace physical tape volume and still provide portablility. I have found pieces of this information around the Internet but nothing putting it all together.

  read more... | view as pdf

• Back Up (And Restore) LVM Partitions With LVM Snapshots

  Author: Falko Timme • Tags: linux, other, storage • Comments: 26

  Back Up (And Restore) LVM Partitions With LVM Snapshots This tutorial shows how you can create backups of LVM partitions with an LVM feature called LVM snapshots. An LVM snapshot is an exact copy of an LVM partition that has all the data from the LVM volume from the time the snapshot was created. The big advantage of LVM snapshots is that they can be used to greatly reduce the amount of time that your services/databases are down during backups because a snapshot is usually created in fractions of a second. After the snapshot has been created, you can back up the snapshot while your services and databases are in normal operation.

  read more... | view as pdf

• How To Install Linux Software-Raid on Debian 3.1, 3.1r1a & Ubuntu 5.10

  Author: patjec • Tags: linux, storage • Comments: 19

  How To Install Linux Software-Raid on Debian 3.1, 3.1r1a & Ubuntu 5.10 Version 0.3 (c) Copyleft Patrick Coeman (patrick_dot_coeman_at_171_dot_net) Last edited: 21/01/2006Tested with these distros: Debian 3.1 & 3.1r1a sarge, Ubuntu-server 5.10 "The Breezy Badger Release" all for i386.

  read more... | view as pdf

• Set Up A Fileserver For Small/Medium Enterprises With SME Server 7.1

  Author: Falko Timme • Tags: linux, other, samba, storage • Comments: 3

  Set Up A Fileserver For Small/Medium Enterprises With SME Server 7.1 This tutorial shows how to set up a fileserver for small and medium enterprises with SME Server 7.1. SME Server is an open-source Linux server distribution (released under the GPL) based on CentOS that can turn a computer into a gateway, firewall, fileserver, printserver, mailserver (including webmail), etc. In this article we will focus on the fileserver aspect of SME Server.

  read more... | view as pdf

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

  Author: Falko Timme • Tags: linux, storage • Comments: 4

  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.

  read more... | view as pdf

• Replacing A Failed Hard Drive In A Software RAID1 Array

  Author: Falko Timme • Tags: linux, other, storage • Comments: 93

  This guide shows how to remove a failed hard drive from a Linux RAID1 array (software RAID), and how to add a new hard disk to the RAID1 array without losing data.

  read more... | view as pdf

• Recover Data From RAID1 LVM Partitions With Knoppix Linux LiveCD

  Author: till • Tags: linux, other, storage • Comments: 5

  Recover Data From RAID1 LVM Partitions With Knoppix Linux LiveCD This tutorial describes how to rescue data from a single hard disk that was part of a LVM2 RAID1 setup like it is created by e.g the Fedora Core installer. Why is it so problematic to recover the data? Every single hard disk that formerly was a part of a LVM RAID1 setup contains all data that was stored in the RAID, but the hard disk cannot simply be mounted. First, a RAID setup must be configured for the partition(s) and then LVM must be set up to use this (these) RAID partition(s) before you will be able to mount it. I will use the Knoppix Linux LiveCD to do the data recovery.

  read more... | view as pdf

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

  Author: Falko Timme • Tags: linux, storage • Comments: 5

  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.

  read more... | view as pdf