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  1. #1

    * Failover or HA iSCSI Storage solution for ESXi?

    Hi guys

    I am looking to implement a contingency plan in case my primary iscsi storage datastore in esxi crashes. Let's say the motherboard dies and requires RMA.

    What solutions do you have in place to avoid downtime in an scenario such as this? Any open source solutions..


  2. #2
    Join Date
    May 2001


    If you are talking about the backend storage alone, mirror the block device is one way of doing it. You have to do something to the hypervisors so the guests can be started on the new datastore when the failover situation takes place. Unless you have ESX, ESXi is very limited and you will have to knows the ins and outs, VIX, APIs, etc of ESXi as well as scripting to implement this.
    Last edited by YUPAPA; 05-27-2011 at 10:05 AM.

  3. #3
    If you buy the commercial version of the vshpere you have all the features you described, like HA, failover clustering etc..

  4. #4
    Quote Originally Posted by jmsvps View Post
    If you buy the commercial version of the vshpere you have all the features you described, like HA, failover clustering etc..
    Not for storage though, you would still need to have a iscsi/fiber storage system

  5. #5
    Join Date
    Jan 2006
    Skip all of the above. It's not a cheap solution, but we run our entire infrastructure on HA clustered storage. We can take a hit on half of the disks and servers in the cluster at the same time with zero downtime. It makes life easy for upgrades and maintenance as well.

    Most people just live with hardware raid on box, but I've been around long enough to know that raid fails, drives fail, cpus fail, motherboards fail...all of these leave you dead in the water no matter how super fast your raid 1+0 SSD drives are.
    Linology Networks,LLC - Powering Your Future, Today

  6. #6
    Join Date
    Mar 2003
    Kansas City, Missouri
    NetApp + Local Syncmirror = golden :-)
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  7. #7
    Join Date
    Sep 2010
    You could build an Openfiler system or two and put them in HA mode, it also supports iscsi and fiber channel.

  8. #8
    Join Date
    Jul 2006
    Montreal, Canada
    This also depends on what type of storage system you have? If it's just a normal machine with a lot of hard drives (not an actual SAN product), you might have issues. You can try seeing if DRBD works however I've never personally tested it with VMWARE, it's RAID1 for storage systems basically.

    You can also look into looking at more redundant storage units that offer full redundancy within them (power/controller/etc)
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