After a storage space is defined, you can start adding
storage services to the space.
About this task
Storage services contain one or more physical storage pools. In addition to storage
capacity, a service has a set of capabilities, defining the storage quality, such as thin/thick
provisioning, compression, encryption, etc.
The services that you add become available for the
solution components included in the Spectrum Connect
package (see Included cloud interfaces). When provisioning storage, the end
users consume it from the spaces and services without dealing underlying physical storage
infrastructure.
You can add each individual storage service separately, as described in the
following procedure.
Procedure
In the Spaces tab of the Spaces/Storage Services pane, select a space on
which you want to create a new service.
Click Add button on the Spaces/Storage Services pane.
The New Storage Service dialog box is displayed.Figure 1. New Storage Service dialog box
Use the Select Capability drop-down box to define the new service
attributes and their values. See table below for details.
Important:Spectrum Connect uses dynamic
filtering to simplify selection of a storage system and a resource, which provides the best match
for selected service attributes. When a service is created, Spectrum Connect groups the best matching storage systems in
the left section of the Storage Systems pane. Also, the matching storage resources are grouped at
the top of the respective storage system. In addition, storage system and resources that do not
support the selected service attributes are grayed out in the bar view or removed from the list in
the table view.
Table 1. Service parameters
Parameter
Description and values
Name
Alphanumeric string for service identification. This is a mandatory field. The
service name must not contain spaces.
Description
Alphanumeric string for service description.
QoS
Enables the use of the Quality of Service (QoS) feature for the service. QoS
is applicable to volumes (Max Independent Performance) or storage resources (Max Shared
Performance), setting the IOPS and bandwidth limits within the following ranges:
IOPS: 0-100000
BW (bandwidth): 0-10000 MB/s
Currently, the QoS capability is not available for IBM Spectrum® Virtualize Family storage systems or for IBM FlashSystem® A9000 or A9000R storage systems that use domain administrator
storage credentials.
Encryption
Enables encryption for the service. If enabled, you can attach only encrypted
storage resource to the service.
Flash
Enables utilization of a storage resource, located on a flash-based storage
resource. This can be an IBM Spectrum Virtualize
Family storage system or an IBM FlashSystem A9000
or A9000R storage system.
Enables the use of IBM® high-availability
technologies for HA storage deployments of IBM Spectrum Virtualize Family storage systems. Select
one of the following HA methods:
Stretched – Stretched cluster topology. The data is mirrored across two different
locations, allowing for fast non-disruptive failover with no interruption of service and automatic
re-synchronization in the event of small-scale outages.
HyperSwap® – Local HyperSwap topology. The local HyperSwap is similar to the stretched cluster method, spreading the nodes of the system across
two sites, with storage at a third site acting as a tie-breaking quorum device. However, it does not
support VVols. The HyperSwap functionality is available
for storage systems that support more than one I/O group.
Mirrored – Data mirroring. Two mirrored copies of the volume are maintained on the same
storage system, while each copy of the volume is kept in a separate storage pool.
With the default Regular option, a storage system uses a single volume.
Space Efficiency
Enables storage space efficiency features for the service. When selected, you
can configure the service to be attached to a thick- or thin-provisioned storage
resource.
Configuration considerations
When adding a VVol-enabled service, define its
space efficiency during VM provisioning via the vSphere web client. To allow this, disable space
efficiency in Spectrum Connect.
Data Reduction
Enables the use of compression and/or data deduplication as data reduction
methods.
Note: Compression only or deduplication only are not supported for FlashSystem A9000 or
A9000R. Only compression + deduplication is supported for those storage systems.
Compression – A storage resource must have data compression enabled prior to service
attachment (via product CLI or UI).
Deduplication – The deduplication process eliminates duplicate data copies, resulting in
substantial reduction in amount of stored information.
Compression + Deduplication – A combination of compression and deduplication techniques
for additional data reduction.
Configuration considerations
For storage services with deduplication or
compression + deduplication data reduction capabilities, you can attach only data reduction pools
(DRPs) as storage resources.
Note: Currently, DS8000®
storage systems do not support data reduction capability.
VVol Service
Enables virtual volume functionality for the service.
The virtual volume
functionality is supported by storage systems that run IBM Spectrum Virtualize (7.6 or later).
Click Create to finish the procedure.
A new service is added to the current Spaces tab. The yellow
frame and the exclamation mark indicate that the service has not been delegated to an interface yet,
or it has no storage resources attached to it.
You can edit the service properties by right-clicking a service which you want modify, and then
selecting Modify Properties.
