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 SAN Volume Controller (SVC) storage
systems or Spectrum Accelerate Family products, using the 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 one of the following storage systems: FlashSystem 900, FlashSystem 9100, FlashSystem
V9000, Storwize® Family.
Replication
Enables synchronous mirroring for the service provisioned on Spectrum
Accelerate Family products. This capability is not available for VVol-enabled services. Additional
service capabilities, such as encryption or compression, are applied to both primary and secondary
storage pools if they are attached to the replicated service. See Defining and attaching replicated storage resources (IBM FlashSystem A9000 and IBM FlashSystem A9000R only).
Availability
Enables the use of IBM high-availability technologies for HA storage
deployments of IBM SAN Volume Controller (SVC) and Storwize storage systems. Select one of the
following HA methods:
Stretched – SVC 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 – SVC/Storwize 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 for SVC/Storwize systems. 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 IBM®
Real-time Compression (RTC) with or without
data deduplication as data reduction methods.
Compression – IBM
Real-time Compression. A service with enabled
IBM
Real-time Compression will be able to support
the compression-compatible (thin-provisioned) storage resources on the Spectrum Accelerate Family
systems. For the Spectrum Virtualize Family systems, a storage resource must have the data
compression enabled prior to service attachment (via product CLI or UI).
Deduplication – Data reduction method in use by Spectrum Virtualize Family products. The
deduplication process eliminates duplicate data copies, resulting in substantial reduction in amount
of stored information.
Compression + Deduplication – A combination of IBM RTC and deduplication techniques for
additional data reduction on Spectrum Accelerate and Spectrum Virtualize storage systems.
Configuration considerations
For Spectrum Virtualize Family storage services
with deduplication or compression + deduplication data reduction capabilities, you can attach only
data reduction pools (DRPs) as storage resources.
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 the IBM
XIV® (11.5.1 or later) and storage systems that run IBM Spectrum Virtualize (7.6 or later).
An XIV VVol-enabled service does not support IBM
Real-time Compression.
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.
