After the storage arrays and services are added, you can
start defining resources on the arrays.
Before you begin
Verify that the storage resource, which you intend to define
and attach, will be compatible with the service in terms of space
efficiency and compression modes.
About this task
If no resources (pools) exist on the storage arrays, you
can define the resources and attach them to a service to make the
physical storage available for the Spectrum Control components and
end users. You can attach several resources to a single service. However,
a specific resource can be added to one service only.
Note: For VVOL-enabled services, the minimum
recommended storage resource size is 500 GiB.
Procedure
On the Spaces/Services pane, select the storage space from
which you want to choose storage services. The available
services that reside on the selected storage space are immediately
displayed.
Click on a service to which you want to attach a resource. The service color changes to green to indicate selection.
On the Storage Systems pane, move the mouse pointer over
an array on which you want to define a new resource, and then click
the Edit button. The Array
Settings dialog box is displayed.Figure 1. Array
Settings dialog box
In the Add New Resource section
of the dialog box, enter a management domain of the pool for the XIV® arrays, or a parent pool for
the IBM® Storwize® Family (ver. 7.4 and above), and
its size in GB.
Note: Management domains are available for the XIV arrays with microcode version
11.5.x and above. To use this feature, verify that:
Domains are already defined on your storage system.
Default credentials of a storage admin user are assigned to the
domain.
Click Add. The
storage resource is created on the array and attached to the service.
The resource color changes to green to indicate the successful attachment.
The resources defined on the array before the array was attached
to Spectrum Control, can be allocated to a service by selecting the
service and clicking an unattached resource.
A storage service
provides indication for the allocated and used storage space.
Allocated – amount of storage space available on all pools
connected to the service.
Used – amount of storage space used by all storage elements
connected to the service (datastores, servers, etc).
Important:
When attaching a resource to an over-provisioned service, verify
that a storage array which hosts the pool has enough capacity to accommodate
the service space requirements.
Datastores created on VVOL-enabled services always display the
meta and thick pools of its group pool to be 100% full. You can disregard
this alert.
When creating a stretched volume (a volume with mirrored copy)
in a stretch cluster on IBM Spectrum
Virtualize, attach the primary and secondary pools to the same storage
service.
