Operating Environment Software User Manual

portability group. A portability group defines the move and portability constraints of a logical
server.
NOTE: When using portability groups, consider the following:
• A portability group member can be removed at any time as log as it belongs to a user-defined
portability group, even if there are logical servers using it. (The member that was removed is
no longer a suitable target for the logical server.)
• A member of a user-defined portability group will always be one of the default portability
group members, so removing it will not affect the datacenter.
• If you want to reactive a logical server in a previously removed user-defined portability group,
you must modify the logical server to point to a different portability group.
Default portability groups are:
• Each Virtual Connect domain group
• Each Operations Orchestration Workflow physical server
• All ESX Virtual Machine Hosts
• All Hyper-V Virtual Machine Hosts
• All HP Integrity VM Virtual Machine Hosts
NOTE: Default portability groups cannot be modified.
(Optional) User-defined portability groups are:
• A single Virtual Connect domain group
• A set of ESX Virtual Machine Hosts
• A set of Hyper-V Virtual Machine Hosts
• A set of HP Integrity VM Virtual Machine Hosts
• A set consisting of a single Virtual Connect domain group and a set of ESX Virtual Machine
Hosts
A logical server created in this type of portability group is a cross-technology logical server.
You may want to create a user-defined portability group to:
• Enable cross-technology moves of logical servers, for example, from a server with Virtual
Connect to an ESX virtual machine.
• Limit the number of servers or hypervisors contained in a portability group. For example, if
the default “All ESX hypervisors” portability group contains a large number of virtual machines,
you can create a portability group that contains a smaller number of ESX virtual machines
within which logical servers can move. This may have the additional benefit of reducing the
number of rejected targets when you move the logical server.
For more information about portability groups, see “Defining portability groups” (page 35).
Manage target attributes
The Modify→Logical Server Target Attributes.. menu selection allows you to add and remove target
attributes to and from a logical server. Target attributes track the systems on which a logical server
has been successfully activated or moved, and allow you to create a richer set of targets without
warnings.
You can add and remove target attributes to standard logical servers, and to cross-technology
logical servers.
For more information about target attributes, see “Adding and removing target attributes” (page 37).
14 Managing logical servers