How is choosen the master or primary slot of the cluster?

Hi there,

I'd like to know how the cluster master slot is choosen? Is there any rule or algorithm to choose the primary slot on boot?

I'm wondering why my Viprion has decided this configuration after booting:

On the vCMP host:

-----------------------------------------
Sys::Cluster: default
-----------------------------------------
Address                 192.168.16.32/21
Availability            available
State                   enabled
Reason                  Cluster Enabled
Primary Slot ID         1
Primary Selection Time  11/27/14 09:03:31

  ----------------------------------------------------------------------------------------------------------------------
  | Sys::Cluster Members
  | ID  Address        Availability  State     Licensed  HA       Clusterd  Reason
  ----------------------------------------------------------------------------------------------------------------------
  | 1   192.168.16.33  available     enabled   true      active   running   Run
  | 2   192.168.16.34  available     enabled   true      active   running   Run
  | 3   ::             unknown       disabled  false     unknown  shutdown  Slot powered off or empty, manually disabled
  | 4   ::             unknown       disabled  false     unknown  shutdown  Slot powered off or empty, manually disabled

On the guest:

-----------------------------------------
Sys::Cluster: default
-----------------------------------------
Address                 192.168.16.55/21
Availability            available
State                   enabled
Reason                  Cluster Enabled
Primary Slot ID         2
Primary Selection Time  11/27/14 09:06:27

  ----------------------------------------------------------------------------------
  | Sys::Cluster Members
  | ID  Address  Availability  State    Licensed  HA       Clusterd  Reason
  ----------------------------------------------------------------------------------
  | 1   ::       available     enabled  true      active   running   Run
  | 2   ::       available     enabled  true      active   running   Run
  | 3   ::       unknown       enabled  false     unknown  shutdown  Slot powered off or empty
  | 4   ::       unknown       enabled  false     unknown  shutdown  Slot powered off or empty

I'd expect to see the guest active on slot 1 too, how is this?

It doesn't matter that the slot 1 is the active one for the host and slot 2 for the guest?