What might cause the upgrade to be unsuccessful?

An administrator is upgrading an ESXi 3.5 host to ESXi 5.x. The host has a single Intel Xeon processor, 4GB of RAM, and a VMFS datastores on private, SAN-attached LUN. What might cause the upgrade to be unsuccessful?

The ESXi host has 4GB RAM

The ESXi host has one processor

ESXi 3.5 is not supported for direct upgrade

The VMFS datastore resides on a private, SAN-attached LUN


Page 29 from vsphere-esxi-vcenter-server-50-installation-setup-guide.pdf

ESXi Hardware Requirements
Make sure the host meets the minimum hardware configurations supported by ESXi 5.0.
Hardware and System Resources
To install and use ESXi 5.0, your hardware and system resources must meed the following requirements:
* Supported server platform. For a list of supported platforms, see the VMware Compatibility Guide at http://www.vmware.com/resources/compatibility.
* ESXi 5.0 will install and run only on servers with 64-bit x86 CPUs.
* ESXi 5.0 requires a host machine with at least two cores.

3 Comments on “What might cause the upgrade to be unsuccessful?

  1. Bernd says:

    I found a better explanation:
    You will find the supported upgrade option in the Upgrade Guide (http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-upgrade-guide.pdf) at page 78. A direct upgrade from v3.5 is not possible. Going from v3.5 to v4.x and then to v5.0 depends on the partition layout. So IMO – at least with shared storage – it’s easier to do a clean installation rather than upgrading.

    found here:

  2. Bob says:

    C is the easiest correct answer, but this question is not detailed enough. B could be correct as well because we’re not told specifics about the Xeon — whether its at least a dual-core and whether it supports VT. There is at least one xeon that is not VT capable.

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