Backup & Recovery

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  • 1.  VDP: Failed to attach disk

    Posted May 16, 2016 07:27 PM

    Facing issue with VDP 6.1 when initiating backup. Refer to attached logs.

    2016-05-17T04:44:23.519-10:00 avvcbimage Info <16041>: VDDK:VixDiskLib: Unable to locate appropriate transport mode to open disk. Error 13 (You do not have access rights to this file) at 4559.

    Failed to open NBD extent.

    2016-05-17T04:44:23.511-10:00 avvcbimage Info <16041>: VDDK:Cnx_Connect: Error message: Failed to connect to server  host:902

    2016-05-17T04:38:04.477-10:00 avvcbimage Info <16041>: VDDK:2016-05-17T04:38:04.464+10:00 error -[7FAC95207700] [Originator@6876 sub=transport] Mounting VM vm-496 using transport hotadd failed : Could not connect to ESX host Failed to connect to server host04:902.

  • 2.  RE: VDP: Failed to attach disk
    Best Answer

    Posted May 17, 2016 10:14 AM

    VDP required below ports to be opened between VDP and ESXi Server. After verifying all ports mentioned below at firewall, issue has been resolved.


    22TCPSSH Client, vSphere Web ClientVDPssh (for debugging)
    53UDPVDPDNSserver DNS
    80TCPvSphere Web ClientVDPhttp
    80TCPVDPvCenter Serverhttp (for licensing)
    111TCP, UDPVDPESXi/ESXrpcbind
    443TCPvSphere Web ClientVDPhttps
    7444TCPVDPvCenter Server/PSCRegister VDP to SSO and access lookup service
    8543TCPvSphere Web ClientVDPVDP appliance management, Redirect for Tomcat
    8580TCPvCenterVDPVDP Downloader
    9443TCPvCenterVDPVDP Web Services