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Results for linux
  • Faster Block Device Performance with NVMe PCIe SSD based dm-cache on RHEL 7

    dm-cache (Device Mapper cache) is a device mapper target to improve performance of a block device (e.g., a spindle device ) HDD by dynamically migrating some of its data to a faster, smaller device (SSD). NVMe based PCIe SSD will act as the cache device. For more details about the NVMe based PCIe SSD...
  • NVMe on RHEL7

    Posted on behalf of Lakshmi Narayanan Durairajan (Lakshmi_Narayanan_Du@dell.com) What is NVMe? NVM Express [NVMe] or Non-Volatile Memory Host Controller Interface Specification (NVMHCI), is a specification for accessing solid-state drives (SSDs) attached through the PCI Express (PCIe) bus. NVM is...
  • Ubuntu Server Hardware Certification Details

    [ This article was written by Kent Baxley , Canonical Field Engineer ] The Dell Linux Engineering team works closely with Canonical to test and certify Ubuntu Server LTS releases on PowerEdge and PowerEdge-C servers. Here are details of the different components and tests that we run: Before running...
  • LXC containers in Ubuntu Server 14.04 LTS Part 2

    This article was written by Kent Baxley (Canonical Field Engineer) and Jose De la Rosa (Dell Linux Engineering). Introduction In part 1 of this series, we gave a brief overview on what LXC containers are, how to deploy, access and destroy them in Ubuntu 14.04 LTS. In part 2, we discuss some additional...
  • Using Juju with LXC Containers on a single machine in Ubuntu 14.04 LTS

    Written by Kent Baxley, Canonical Field Engineer Introduction Juju is orchestration software from Canonical used to easily and quickly deploy and manage cloud services. For example, say you want to deploy a blog web site using the open source Wordpress application. This can be done in 3 easy steps...
  • LXC containers in Ubuntu Server 14.04 LTS

    This article was written by Jose De la Rosa (Dell Linux Engineering) and Kent Baxley (Canonical Field Engineer) What are containers? LXC (LinuX Containers) provide an isolated operating system environment with its own file system, network, process and block I/O space. A favorite way to describe containers...
  • Setting iDRAC OS Information with IPMI on Ubuntu Server

    This article was written by Kent Baxley, Field Engineer at Canonical. Recently, Charles Rose published an article on how to set and retrieve OS information inside of the iDRAC using the latest ipmitool and recent Fedora releases. This article will describe how to do the same thing with Ubuntu Server...
  • Linux White Papers

    Linux engineers at Dell routinely publish white papers on Linux technologies, some of which have made significant impacts in the Linux community. Dell's quarterly Power Solutions is free and is a great resource for white papers on enterprise related topics. PowerSolutions is available in an RSS feed...
  • Installing Ubuntu Server with Intel Matrix RAID arrays

    This article was written by Kent Baxley, Software Engineer at Canonical. Introduction Installing Ubuntu Server on Dell PowerEdge and PowerEdge-C servers that utilize Intel Matrix RAID arrays (BIOS/FW Raid - Intel Corporation Patsburg SATA RAID Controller) can be a tricky and sometimes frustrating...
  • gPXE and network deployment of operating systems

    This wiki is written by Shiva Katta and Krishnaprasad K from Dell Hypervisor Engineering team. This wiki talks about a specific problem and it’s solutions while using gPXE for operating system deployment over the network. What's gPXE? Preboot eXecution Environment (PXE) provides the...
  • Ubuntu LTS Hardware Enablement Stack

    LTS releases For customers who want to deploy Ubuntu Server in an enterprise environment, Dell recommends that they use an LTS (Long Term Support) release of Ubuntu Server, which is currently v14.04, released in April 2014. The previous LTS release (v12.04) was originally released in April 2012. LTS...
  • Ubuntu Server Networking

    In Ubuntu Server, configuring network interfaces is surprisingly straight-forward. As opposed to other Linux distributions, where there is a configuration file per each interface (which can be hard to manage), there is only one network interface configuration file in Ubuntu: /etc/network/interfaces...
  • Python fun

    I have a background in Unix / Linux system administration and as such, I have a lot of experience with bash script programming. Lately I've been moving away from bash scripting and playing more with python. Though some tasks are better suited for bash scripting, a lot of them are easier and simpler...
  • Announcing the release of biosdevname 0.4.1

    Biosdevname is a utility used to help map Linux ethernet devices to their physical location in a system. Traditionally in Linux, ethernet devices have been named ethX, which may or may not correspond to the Lan-on-Motherboard (LOM) numbering in the system. Biosdevname is a udev helper application that...
  • Using ledmon/ledctl utilities on Linux to manage backplane LEDs for PCIE SSD Software RAID drives

    Ledmon and ledctl are two utilities for Linux that can be used to control LED status on drive backplanes. Normally drive backplane LEDs are controlled by a hardware RAID controller (PERC), but when using Software RAID on Linux (mdadm) for PCIE SSD, the ledmon daemon will monitor the status of the drive...
  • Linux OS Support on Dell PowerEdge Servers

    Linux OS Support Matrix Dell has extensive Linux expertise through our dedicated Linux engineering and technical support teams. The following Linux distributions are supported through collaborative support agreements between Dell and our respective Linux partners. Please see our support overview...
  • KVM Virtualization Security

    For the past few months I have been looking at KVM virtualization on Red Hat Enterprise Linux and CentOS and just recently started looking at KVM security. I have a small deployment in my lab with a few Dell PowerEdge servers, EqualLogic iSCSI storage and several Linux Virtual Machines (VMs), and even...
  • Red Hat Network Satellite administration tips

    I manage a Red Hat Network (RHN) Satellite Server in our lab for our Red Had Enterprise Linux (RHEL) hosts, and throughout the years I’ve gathered a few tips and hints that have made my life easier. Some of these tips can probably be found in the official Red Hat documentation already, others are...
  • Enhancing the bash command prompt

    The bash command prompt in most Linux distributions is pretty bland. If you use the Linux command prompt on a regular basis, perhaps you have noticed that in most Linux distributions, it looks something like this: [user@hostname dir]$ Don’t get me wrong; this can be quite useful, as it displays...
  • Linux Tips and Tricks

    In this section, we include Linux tips and tricks that our experienced Linux engineers have found over the years. Whether you are a system administrator, developer or just a casual user, these tips and tricks are sure to come in handy. Feel free to add your own :) Enhancing the bash command prompt...
  • KVM Virtualization Advanced Topics

    Coming Soon
  • Linux Virtualization

    In this section we explore everything related to virtualization in Red Hat Enterprise Linux (RHEL) and SuSE Linux Enterprise Server (SLES). Other Linux-based hypervisors such as ESX and XenServer are covered in the Virtualization section. KVM Virtualization in RHEL 6 Made Easy KVM Virtualization...
  • KVM Virtualization Made Easy

    This article has been moved to a PDF for ease of reading. You can download here . For a follow-up article that covers additional topics, click here . Jose De la Rosa Dell Linux Engineering
  • Ubuntu Server

    Whitepapers and blogs Ubuntu 14.04 LTS Using Juju with LXC containers on a single machine in Ubuntu 14.04 LTS Using Tags with MAAS and Juju in Ubuntu Server 14.04 LTS LXC containers in Ubuntu Server 14.04 LTS LXC containers in Ubuntu Server 14.04 LTS Part 2 Deploying Workloads with Juju...
  • Linux Blogs

    The following are blog entries on the Dell TechCenter Community Site, made by members of the Dell Linux Engineering team on several interesting topics: Ubuntu Server support for Intel Xeon E5-2600 v2 series processors AMD Opteron 4200 series processors supported on R415 and R515 servers Announcing...