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Linux

Monitoring and Managing Linux Software RAID

Post date: April 15, 2005, 23:04 Category: System Views: 3353 Comments
Tutorial quote: Systems administrators managing a data center face numerous challenges to achieve required availability and uptime. Two of the main challenges are shrinking budgets (for hardware, software, and staffing) and short deadlines in which to deliver solutions. The Linux community has developed kernel support for software RAID (Redundant Array of Inexpensive Disks) to help meet those challenges. Software RAID, properly implemented, can eliminate system downtime caused by disk drive errors. The source code to the Linux kernel, the RAID modules, and the raidtools package are available at minimal cost under the GNU Public License. The interface is well documented and comprehensible to a moderately experienced Linux systems administrator.

In this article, I'll provide an overview of the software RAID implementation in the Linux 2.4.X kernel. I will describe the creation and activation of software RAID devices as well as the management of active RAID devices. Finally, I will discuss some procedures for recovering from a failed disk unit.
Unix+clones

Split and Reassemble Files

Post date: September 20, 2006, 20:09 Category: Software Views: 4776 Comments
Tutorial quote: There always comes a time, where you wish that file was only a few kilobytes/megabytes smaller. Wether it be so it can fit onto your floppy disk, CDR etc, or so you can meet the attachment limit on an e-mail server. This isn't really a command that you would use everyday, but it might come in handy.
Debian

BackupPC Installation And Configuration

Post date: June 19, 2006, 15:06 Category: Software Views: 3649 Comments
Tutorial quote: BackupPC is a high-performance, enterprise-grade system for backing up Linux and WinXX PCs and laptops to a server's disk. BackupPC is highly configurable and easy to install and maintain.
Fedora

Back Up Your Files With Fwbackups On Fedora 8

Post date: February 28, 2008, 12:02 Category: Desktop Views: 3966 Comments
Tutorial quote: This document describes how to set up, configure and use Fwbackups on a Fedora 8 desktop. The result is an easy-to-use backup system for desktop usage. Fwbackups creates partial backups which can be stored locally or on a removable device. You have also the option to run scheduled backups.
OSX

How To Backup Your Mac Intelligently

Post date: May 26, 2006, 07:05 Category: Miscellaneous Views: 7001 Comments
Tutorial quote: I’m a paranoid person when it comes to backing up my files, but it took a hard drive crash of my own to make me realize how important backing up can be. Since then, I’ve gotten very good at making sure my data is secure. The setup I’m about to describe works for me. It’s based on how I prioritize my data and on the budget I’m willing to spend to keep everything safe. It’s not perfect for everyone, so take what I say with a grain of salt - an example of where to start and what’s possible.
Linux

HOWTO backup your linux system using bash, tar and netcat

Post date: April 2, 2006, 22:04 Category: System Views: 3460 Comments
Tutorial quote: I recently ran into the problem of not having enough hard drive space on my slackware linux laptop, but was lucky enough to have a much bigger drive sitting around from before and wanted a way to perform a hassle free seamless upgrade. i had this idea and it worked pretty well so i thought i would share it since i think it's pretty cool and only requires the use of two tools that should be included with all distributions.
Unix+clones

Create Incremental Snapshot-style Backups With rSync And SSH

Post date: August 29, 2006, 16:08 Category: Network Views: 3842 Comments
Tutorial quote: As neither human nor computers are perfect (humans err / computers may fail) it is quite obvious that a good backup system will prevent from too much damage once the computer may go down. This could be either because the harddrive is failing or because of hackers or because you accidentally deleted something important.

In this tutorial I will show you how to automate backups automatically in an incremental snapshot-style way by using rSync.
Ubuntu

Recover your deleted jpeg pictures from filesystem or camera memory card - recoverjpeg

Post date: October 10, 2010, 05:10 Category: Desktop Views: 3207 Comments
Tutorial quote: Deleted or lost files can usually be recovered from failed or formatted drives and partitions, CD-ROMs and memory cards using the free software available in the Ubuntu repositories. The data is recoverable because the information is not immediately removed from the disk.
Ubuntu

How to Install Tuxonice in Ubuntu

Post date: June 24, 2009, 06:06 Category: Software Views: 4636 Comments
Tutorial quote: TuxOnIce is most easily described as the Linux equivalent of Windows’ hibernate functionality,but better. It saves the contents of memory to disk and powers down. When the computer is started up again, it reloads the contents and the user can continue from where they left off. No documents need to be reloaded or applications reopened and the process is much faster than a normal shutdown and start up.

Debian

Cloning Linux Systems With CloneZilla Server Edition (CloneZilla SE)

Post date: January 22, 2009, 12:01 Category: Miscellaneous Views: 32138 Comments
Tutorial quote: This tutorial shows how you can clone Linux systems with CloneZilla SE. This is useful for copying one Linux installation to multiple computers without losing much time, e.g. in a classroom, or also for creating an image-based backup of a system. I will install CloneZilla SE on a Debian Etch server in this tutorial. The systems that you want to clone can use whatever Linux distribution you prefer.
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