What is the socket-based licensing?

Infrascale vCFA socket-based licensing considers the number of populated CPU sockets in an ESX or ESXi host(s) being backed up.

The license is counted by CPUs, not by CPU cores. So, if you have an ESX or ESXi host with 2 CPUs each having 4 cores, it would require two sockets, not eight. Backing up VMs from three hosts with two CPUs each, requires a license for six sockets. The first time a VM is backed up from a host, the number of sockets needed to cover that host will be taken from the pool of available licensed sockets, and assigned to that host.

The license doesn’t take into account:

  • the number of VMs or physical clients
  • empty CPU sockets on the motherboard of an ESX or ESXi host
  • the number of vCPUs used by the vCFA
  • the number of vNICs used by the vCFA
  • the size of the backup storage volume

Where to view the licensed sockets in use?

To view the list of hosts using the socket license, and the licensed sockets used by those hosts:

  1. Log in to the vCFA Management Console.

  2. On the Settings tab, click Licenses in the Tools group.

  3. Click the Advanced button, and see the Registered Hypervisors list.

How to allocate a licensed socket to another host?

You can withdraw a licensed socket from one host and allocate it to another, for example, if you want to switch from backing up the test hosts to the production hosts.

For this, in the vCFA Management Console:

  1. Go to the Settings tab.

  2. In the Tools group, click Licenses.

    In the Registered Hypervisors list, you’ll find the hosts and licensed sockets used by them.

  3. Select one or more hosts, and then click Revoke to remove the host(s) from the list and to return the sockets they were using to the pool of available licensed sockets.

    A new host will be allocated sockets from the pool of available licensed sockets upon the first time a VM is backed up from that host.

What is the revokes remaining count?

The revokes remaining count indicates how many times you’ve withdrawn a licensed socket from an ESX or ESXi host. You can revoke a licensed socket a fixed number of times.

it is calculated per host, but not per socket. For example, if you revoke a licensed socket from the host A, then allocate it to the host B, and then allocate it to the host A again, the count will decrease by one for each host.

To view the revokes remaining count, in the vCFA Management Console:

  1. Go to the Settings tab.

  2. In the Tools group, click Licenses.

  3. In the Registered Hypervisors list, see the Revokes Remaining column.

If the revokes remaining count for a host that uses a licensed socket reaches 0, you’ll need to contact Infrascale Support to remove it from the list of hosts that use the socket license so the licensed socket in use could be allocated to another host.

FAQ

Backup failed because the number of licensed sockets was exceeded

Sometimes, a backup may fail due to the lack of sockets in the pool of available licensed sockets to register the host the VM was running on.

Backup Failure: The number of licensed sockets has been exceeded by this clients VM host

This could be either that the license didn’t include enough sockets for this host (for example, a 1-socket license can’t be used to back up VMs on a host with 2 CPUs), or the sockets for this license were already assigned to other hosts. To free a licensed socket used by another host, see.

The host uses additional licensed sockets after changing its hardware configuration

Each host is identified uniquely based on its hardware. Some changes to the hardware in a host (for example, replacing a failed motherboard) could make the vCFA fail to recognize the host as one it has seen before. This isn’t common, but if it does happen, it can be easily resolved by revoking the license socket assigned to the host.