카테고리: Digital

Setting up ESXi for running Apple Mac OS X 

Vmware ESXi 6.0 doesn’t support OS X out of the box. So, the first thing you need to do is to customise the hypervisor layer by executing an Unlocker script by insanelymac.com. Please note that you will need to register on the site in order to download the Unlocker tool. You need to enable SSH on your ESXi host. In order to do that, login to the host…

Ovirt : Convert physical/virtual systems to virtual using virt-p2v && virt-v2v then use it in ovirt DC

Here is the detailed process about virt-v2v and virt-p2v which can be used in an ovirt setup to migrate your physical and virtual systems to ovirt data center.!!! Below strings concludes about what is virt-v2v and virt-p2v, how it work, how it can be used for the conversion. It also includes how you can debug issues in this area. !!! I am sure there are many sysadmins who…

virt-v2v – Convert a guest to use KVM

SYNOPSIS virt-v2v -ic vpx://vcenter.example.com/Datacenter/esxi vmware_guest virt-v2v -ic vpx://vcenter.example.com/Datacenter/esxi vmware_guest \ -o rhev -os rhev.nfs:/export_domain –network rhevm virt-v2v -i libvirtxml guest-domain.xml -o local -os /var/tmp virt-v2v -i disk disk.img -o local -os /var/tmp virt-v2v -i disk disk.img -o glance virt-v2v -ic qemu:///system qemu_guest –in-place DESCRIPTION Virt-v2v converts guests from a foreign hypervisor to run on KVM. It can read Linux and…

CentOS 7 VNC 설정

1. GNOME Desktop 설치   yum groupinstall “GNOME Desktop” 2. tigervnc-server 설치 yum install tigervnc-server 3. vncserver 구설파일 설정 ( CentOS 7에서 구설파일 변화가 있다고함 )  cp /lib/systemd/system/vncserver@.service /etc/systemd/system/vncserver@:1.service 4. 구성파일 변경  vi /etc/systemd/system/vncserver@\:2.service [Unit] Description=Remote desktop service (VNC) After=syslog.target network.target [Service] Type=forking # Clean any existing files in /tmp/.X11-unix environment ExecStartPre=/bin/sh -c ‘/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :’…

RHEL7: Configure a system as either an iSCSI target or initiator that persistently mounts an iSCSI target.

Presentation In the iSCSI world, you’ve got two types of agents: an iSCSI target provides some storage (here called server), an iSCSI initiator uses this available storage (here called client). As you already guessed, we are going to use two virtual machines, respectively called server and client. If necessary, the server and client virtual machines can be one and only one machine. iSCSI Target Configuration Most of the target configuration is done interactively through the targetcli command. This command uses a…

LXC 와 Docker 그리고 Linux 컨테이너 기술들 살펴보기.

[docker] 컴퓨터의 성능이 향상되면서 가상화라는 단어는 일반적이되었습니다. 가상머신을 구현하기 위하여 VMWARE, KVM, Hyper-V 기술들을 사용하였으나, 최근에는 Docker로 대표되는 LXC (Linux Containers) 와 같은 컨테이너형 가상화쪽으로 화제가 옮겨가고 있습니다. 컨테이너형 가상화 기술은 기존의 가상화 기술보다 가벼워 지고, 이식성이 뛰어난 특징을 가지고 있습니다. Linux 컨테이너를 살펴보자면 OS의 내부는 물리적 자원을 관리하는 ‘커널 공간 “과 사용자 프로세스 (애플리케이션)을 실행하는”사용자 공간 “으로 나뉩니다. 컨테이너…

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