vSphere Hypervisor

 View Only
  • 1.  Boot ESXi Hypervisor From SAN

    Posted Jan 01, 2012 04:39 AM

    Hi

    Installing Hypervisor on flash disk is a good idea but I think it is better to boot it directly from SAN. it can be good for booting all hosts from same place and also it is more convenient than usb disk.

    question is :

    is it possible to create a volume (lun) in a raid group in my p2000 and put hypervisor in it and force my g7 server to boot from that ?



  • 2.  RE: Boot ESXi Hypervisor From SAN

    Posted Jan 01, 2012 11:38 AM

    There are several ways to install/boot the Hypervisor.

    • local disks
    • local USB/SD devices
    • Boot from SAN
    • Auto-Deploy (as of vSphere 5)

    To start with, I'd recommend you read Chapter 5 in http://www.vmware.com/pdf/vsphere4/r41/vsp_41_san_cfg.pdf to understand the requirements for Boot from SAN. You can also find information in the vSphere Installation and Setup Guide

    André



  • 3.  RE: Boot ESXi Hypervisor From SAN

    Posted Jan 01, 2012 12:25 PM

    Great Reference

    I Will Check That And Bother You With My Questions Again

    Thanks



  • 4.  RE: Boot ESXi Hypervisor From SAN

    Posted Jan 01, 2012 12:26 PM

    Note that one of your ideas wont work - booting multiple hosts from the same image.  Doesn't work like that (each image is customized to thehost on install), so you will still need 1 LUN per host.



  • 5.  RE: Boot ESXi Hypervisor From SAN

    Posted Jan 03, 2012 12:34 AM

    My personal recommendation would be that with the price of a USB drive (very little) or the capabilities of Auto Deploy, weighed up against the complexity of creating a "Boot from SAN" environment and maintaining and supporting that configuration, the SAN loses.



  • 6.  RE: Boot ESXi Hypervisor From SAN

    Posted Jan 04, 2012 10:58 AM

    Benefits of Boot from SAN

    Booting your ESX host from a SAN provides numerous benefits.

    Cheaper servers – Servers can be more dense and run cooler without internal storage.

    Easier server replacement – You can replace servers and have the new server point to the old boot location.

    Less wasted space.

    Easier backup processes – The system boot images in the SAN can be backed up as part of the overall SAN

    backup procedures.

    Improved management – Creating and managing the operating system image is easier and more efficient