vSAN1

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  • 1.  vSAN 4 nodes + witness with vCenter Foundation

    Posted May 10, 2018 10:17 AM

    hi,

    i have the following environment

    - stretched cluster (2+2+1) : 2 preferred site 2 secondary and 1 witness

    - witness is deployed as an appliance

    - i have vcenter foundation lincese (it supports 4 hosts as informed)

    Problem :

    when i add the 4 vsan nodes and 1 witness node to the vcenter. then install vcenter foundation license; the witness become disconnected due to insufficient license.

    is the license counting the witness as a physical host ??

    thanks in advance.



  • 2.  RE: vSAN 4 nodes + witness with vCenter Foundation

    Broadcom Employee
    Posted May 10, 2018 01:39 PM

    Prior to vSphere 6.5 U1, the foundation license limited you to 3 hosts. After 6.5 Update 1, you can now have up to 4 hosts. The witness appliance is a virtualized ESXi server, so it does count as a host. Since you are trying to have 5 hosts with a foundation license, this is why you are seeing such behavior, as you can only have a maximum of 4 hosts.

    VMware Announces General Availability of vSphere 6.5 Update 1 - VMware vSphere Blog



  • 3.  RE: vSAN 4 nodes + witness with vCenter Foundation

    Posted May 10, 2018 01:47 PM

    hi,

    but i was informed that the witness appliance will not be allocated as an ESXi physical host and based on that i bought the foundation license



  • 4.  RE: vSAN 4 nodes + witness with vCenter Foundation

    Broadcom Employee
    Posted May 10, 2018 01:57 PM

    See Page 7 of this document. The witness appliance includes the ESXi license (so no need to buy that), but it is an ESXi host after all.

    https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/products/vsan/vmware-vsan-66-licensing-guide.pdf



  • 5.  RE: vSAN 4 nodes + witness with vCenter Foundation

    Posted May 10, 2018 02:14 PM

    hi,

    but i have vcenter foundation license not essentials

    does foundation differ from essential?



  • 6.  RE: vSAN 4 nodes + witness with vCenter Foundation

    Broadcom Employee
    Posted May 10, 2018 02:24 PM

    Main difference is host count; 3 in essentials, and 4 on foundation(6.5 U1+). Here is a VMTN thread no the comparison.

    vCenter Editions: Foundation vs. Essentials vs. Standard



  • 7.  RE: vSAN 4 nodes + witness with vCenter Foundation

    Posted May 11, 2018 10:39 AM

    hi,

    many thanks.

    one more question does foundation license support linked clone? i cant find full features of foundation!!

    because i already deployed vcenter with external PSC.



  • 8.  RE: vSAN 4 nodes + witness with vCenter Foundation
    Best Answer

    Posted Jul 11, 2018 10:12 PM

    According to Duncan Blog under Adding a fifth (virtual) ESXi host to vCenter Foundation - Yellow Bricks the given answer isnt right. There was a bug in previous vCenter versions that the witness ESXI VM counts as a real ESX within vCenter. A workaround was to add this VM first and than your real ESXi Hosts. This bug was fix with u2. Check VMware vCenter Server 6.5 Update 2 Release Notes (scroll down... its the last point).

    If you planung a stretched 4 node Cluster you may ask your VMware Sales first.

    Regards,

    Joerg



  • 9.  RE: vSAN 4 nodes + witness with vCenter Foundation

    Posted Jul 12, 2018 11:56 AM

    hi,

    but i have a production vSAN, with vDS

    how can i remove these 4 production hosts without affecting the vSAN cluster??

    because now i have 5 hosts (4 hosts + witness appliance) on vcenter with trial license. and in order to re-add the witness appliance before the data hosts, i am afraid if i removed the hosts from the vsan it will affect the cluster.

    regards,