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Linux

Mastering the Enterprise Volume Management System

Post date: April 13, 2005, 19:04 Category: System Views: 2680 Comments
Tutorial quote: The Enterprise Volume Management System, or EVMS, is a disk, partition, and file system manager for Linux that claims to be a comprehensive tool for all disk management tasks. I ran across EVMS and found the idea appealing, so I decided to try it out. I've been working with it for a couple of weeks now, and this article describes what I found.
Gentoo

Enterprise Volume Management System Mini How-To

Post date: April 13, 2005, 20:04 Category: System Views: 3665 Comments
Tutorial quote: Here is a rough write-up on how I installed Gentoo 1.4_rc1 on EVMS, with the exception of the root partition. If you choose so, see the EVMS Howto for instructions on how to mount your root file system on an EVMS volume. I felt the hassle of dealing with a EVMS (or LVM, for that matter) root outweighs its advantages.

This is a very basic setup I used for my laptop. I only needed it so I don't have to worry about getting the partition sizes right from the beginning and to be able to adjust them with ease in the future. I've been using LVM with success but I couldn't find a way to resize the volume group itself. This, the fact that afaik there is no support for LVM in kernel 2.5.x and a new laptop needing a fresh installation made me try EVMS.
Gentoo

EVMS Howto for Gentoo Linux

Post date: April 15, 2005, 04:04 Category: Hardware Views: 4546 Comments
Tutorial quote: EVMS stands for Enterprise Volume Management System. It's a all-in-one utility written by IBM to manage disk partitions, logical volumes, software RAID and even filesystems.

It does everything from installing the partition table to mounting volumes, fscking and resizing them. It has a plugin mechanism which allow a user to extend EVMS with external drivers.
Debian

How To Install The Openbravo ERP On Debian Etch

Post date: April 1, 2008, 11:04 Category: Installing Views: 3153 Comments
Tutorial quote: This document describes how to set up Openbravo ERP (enterprise management system) on Debian Etch. Taken from the Openbravo page: "Openbravo is an open source ERP solution designed specifically for the SME (small to midsize firm). Developed in a web based environment, it includes many robust functionalities which are considered part of the extended ERP: procurement and warehouse management, project and service management, production management, and financial management."
RedHat

Getting started with RHEL4's built-in LVM tools

Post date: June 3, 2005, 16:06 Category: System Views: 6064 Comments
Tutorial quote: Many Unix administrators I know (you know who you are), always used to smirk when I talked about Linux. They could always point to the fact that regardless of whatever I could say, they had journaling file systems, which they could manage using various Logical Volume Management (LVM) tools, and I couldn't touch that.

Well, not any more! Not only does Red Hat offer ext3 as their default file system, but they offer great management tools to boot. As we know, ext2 had a great lifespan, but it was not an enterprise-ready file system that could handle large disk partitions, fast recovery from systems crashes, or large amounts of files. Journaling file systems give you the ability to recover almost instantly from a crash, as you do not need to run fsck after a restart. Similar to how databases recover from crashes, a journaling file system tracks changes to file system metadata and pretty much guarantees that either all or no updates have completed. Of course, these file systems also need elaborate tools to help better configure and manage them accordingly.
RedHat

Choosing an I/O Scheduler for Red Hat Enterprise Linux 4

Post date: July 18, 2005, 22:07 Category: Benchmarks Views: 7448 Comments
Tutorial quote: The Linux kernel, the core of the operating system, is responsible for controlling disk access by using kernel I/O scheduling. Red Hat Enterprise Linux 3 with a 2.4 kernel base uses a single, robust, general purpose I/O elevator. The 2.4 I/O scheduler has a reasonable number of tuning options by controlling the amount of time a request remains in an I/O queue before being serviced using the elvtune command. While Red Hat Enterprise Linux 3 offers most workloads excellent performance, it does not always provide the best I/O characteristics for the wide range of applications in use by Linux users these days. The I/O schedulers provided in Red Hat Enterprise Linux 4, embedded in the 2.6 kernel, have advanced the I/O capabilities of Linux significantly. With Red Hat Enterprise Linux 4, applications can now optimize the kernel I/O at boot time, by selecting one of four different I/O schedulers.
RedHat

Taking advantage of SELinux in Red Hat Enterprise Linux

Post date: April 15, 2005, 21:04 Category: Security Views: 3776 Comments
Tutorial quote: The release of Red Hat Enterprise Linux 4 debuts the first commercially supported inclusion of Security-Enhanced Linux (SELinux). An installation of Red Hat's latest enterprise operating system has SELinux installed and enabled by default. In the past SELinux has been criticized for a lack of commercial support, many big sites were unable to use it due to the lack of support (Fedora Core 3 doesn't have the support that they require). Now in Red Hat Enterprise Linux 4, SELinux is a supported part of the OS, and such objections to the use of SELinux have gone away. SELinux is now widely regarded as being suitable for the largest sites.
SuSe

Install & Configure IPplan IP Manager in openSUSE

Post date: June 3, 2009, 22:06 Category: Network Views: 8457 Comments
Tutorial quote: IPplan is a free opensource IP Address management application. IPPlan is a web based IP address management software and tracking tool simplifying the administration of your IP address space. IPplan goes beyond IP address management including DNS administration, configuration file management, circuit management and storing of hardware information.
Linux

A Beginner's Guide To LVM

Post date: January 16, 2007, 19:01 Category: System Views: 3864 Comments
Tutorial quote: This guide shows how to work with LVM (Logical Volume Management) on Linux. It also describes how to use LVM together with RAID1 in an extra chapter. As LVM is a rather abstract topic, this article comes with a Debian Etch VMware image that you can download and start, and on that Debian Etch system you can run all the commands I execute here and compare your results with mine. Through this practical approach you should get used to LVM very fast.
SuSe

A Fresh Approach - SUSE 10.1 package management

Post date: May 12, 2006, 13:05 Category: System Views: 4126 Comments
Tutorial quote: In SUSE 9.x and 10.0 the default package management software was the software management module and yast online update ( YOU ) in YaST2 and the susewatcher system tray applet. The susewatcher applet would faithfully report any security or system updates and would let you launch YOU to download and apply the updates. For third party software you could add online repositories to the installation sources module and ultimately you could manage all your software from the software management module, again in YaST2.
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