The Geek Stuff » Hardware

RAID 10 Vs RAID 01 (RAID 1+0 Vs RAID 0+1) Explained with Diagram

Ramesh Natarajan — Mon, 24 Oct 2011 06:02:35 +0000

RAID 10 is not the same as RAID 01. This article explains the difference between the two with a simple diagram. I’m going to keep this explanation very simple for you to understand the basic concepts well. In the following diagrams A, B, C, D, E and F represents blocks. RAID 10 RAID 10 is [...]

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VMware ESXi step-by-step Installation Guide with Screenshots

Ramesh Natarajan — Wed, 23 Jun 2010 06:02:37 +0000

As part of the on-going VMware article series, earlier we discussed about VMware virtualization fundamentals, and how to install VMware Server 2. In this article, let us discuss about how to install VMware ESXi. VMware ESXi is free. However, the software comes with a 60 days evaluation mode. You should register on VMware website to [...]

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DELL Tutorial: Create RAID Using PERC 6/i Integrated BIOS Configuration Utility

Ramesh Natarajan — Mon, 04 May 2009 15:02:12 +0000

Disk space is never enough. On an on-going basis system administrators will be getting request to increase the disk space on a server. In this article, let us review how to add new physical disks and create a virtual disk with a RAID configuration on an DELL PowerEdge Server using PERC 6/i Integrated BIOS Configuration [...]

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Overview Of PoE – Power Over Ethernet Concepts and Devices List

Ramesh Natarajan — Fri, 23 Jan 2009 06:03:20 +0000

Photo courtesy of Olivander 1. What is PoE – Power Over Ethernet? Power over Ethernet (PoE) does exactly what it says — it carries power over ethernet cables. So, an ethernet cables caries both data and current together to operate devices like wi-fi access points. This is very helpful to install wi-fi access points in [...]

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How To Get Hardware Specs of Your System Using lshw Hardware Lister

Ramesh Natarajan — Mon, 22 Dec 2008 16:01:27 +0000

Photo courtesy of viagallery.com This is a guest post written by SathiyaMoorthy. lshw (Hardware Lister) command gives a comprehensive report about all hardware in your system. This displays detailed information about manufacturer, serial number of the system, motherboard, CPU, RAM, PCI cards, disks, network card etc., Using lshw, you can get information about the hardware [...]

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WOL Wakeonlan Guide: Turn On Servers Remotely Without Physical Access

Ramesh Natarajan — Thu, 27 Nov 2008 16:02:26 +0000

Photo courtesy of Jamison Judd This is a guest post written by SathiyaMoorthy. Wakeonlan (wol) enables you to switch ON remote servers without physically accessing it. Wakeonlan sends magic packets to wake-on-LAN enabled ethernet adapters and motherboards to switch on remote computers. By mistake, when you shutdown a system instead of rebooting, you can use [...]

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How To Manage Dell Servers using OMSA – OpenManage Server Administrator On Linux

Ramesh Natarajan — Mon, 17 Nov 2008 16:22:08 +0000

OMSA is a web based application to manage DELL PowerEdge Servers. Using OMSA you can perform proactive system monitoring, system diagnosis, troubleshoot hardware issues and configure RAID etc., You can also view and manage hardware’s embedded system management (ESM) log using OMSA. This is an jumpstart guide that explains how to install Dell OMSA on [...]

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How To Get Hardware Information On Linux Using dmidecode Command

Ramesh Natarajan — Mon, 10 Nov 2008 14:24:27 +0000

Photo courtesy of B Naveen Kumar dmidecode command reads the system DMI table to display hardware and BIOS information of the server. Apart from getting current configuration of the system, you can also get information about maximum supported configuration of the system using dmidecode. For example, dmidecode gives both the current RAM on the system [...]

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View DELL Service Tag and Express Service Code From Linux and Windows

Ramesh Natarajan — Fri, 24 Oct 2008 14:21:41 +0000

When you call DELL customer support for any help, they will ask for either Service Tag or Express Service Code. You also need service tag to download drivers and documentations from DELL support website. When you have physical access to the system, you can easily identify the service tag affixed on the body of the [...]

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10 Tips to Use Your Hardware and Software Vendor Support Effectively

Ramesh Natarajan — Mon, 29 Sep 2008 15:01:52 +0000

Photo courtesy of wraithtdk Companies purchase support for most of their enterprise hardwares (servers, switches, routers, firewalls etc.,) and softwares (databases, OS, applications, frameworks etc.,). They spend lot of cash on support mainly for two reasons: 1) To get help from vendors to fix critical production issues 2) To keep up-to-date with the latest version [...]

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