v
The z/OS Distribute Data backup feature is disabled on all DS8000
systems in the environment (local and remote sites).
v
Thin provisioned volumes (ESE or TSE) are not used on any DS8000
systems in the environment (local and remote sites).
v
On zSeries systems there is only one tenant running in an LPAR, and the
volume access is controlled so that a CKD base volume or alias volume
is only accessible by a single tenant’s LPAR or LPARs.
I/O Priority Manager
The I/O Priority Manager function can help you effectively manage quality
of service levels for each application running on your system. This function
aligns distinct service levels to separate workloads in the system to help
maintain the efficient performance of each volume. The I/O Priority
Manager detects when a higher-priority application is hindered by a
lower-priority application that is competing for the same system resources.
This detection might occur when multiple applications request data from
the same drives. When I/O Priority Manager encounters this situation, it
delays lower-priority I/O data to assist the more critical I/O data in
meeting its performance targets.
Use this function to consolidate more workloads on your system and to
ensure that your system resources are aligned to match the priority of your
applications.
The default setting for this feature is disabled.
Note:
If the I/O Priority Manager LIC key is activated, you can enable
I/O Priority Manager on the Advanced tab of the System settings page in
the DS8000 Storage Management GUI.
Restriction of hazardous substances (RoHS)
The DS8882F system meets RoHS requirements. It conforms to the
following EC directives:
v
Directive 2011/65/EU of the European Parliament and of the Council of
8 June 2011 on the restriction of the use of certain hazardous substances
in electrical and electronic equipment. It has been demonstrated that the
requirements specified in Article 4 have been met.
v
EN 50581:2012 technical documentation for the assessment of electrical
and electronic products with respect to the restriction of hazardous
substances.
Logical configuration
You can use either the DS8000 Storage Management GUI or the DS CLI to
configure storage. Although the end result of storage configuration is similar, each
interface has specific terminology, concepts and procedures.
Note:
LSS is synonymous with logical control unit (LCU) and subsystem
identification (SSID).
Logical configuration with DS8000 Storage Management GUI
Before you configure your storage system, it is important to understand the storage
concepts and sequence of system configuration.
Figure 3 on page 12 illustrates the concepts of configuration.
Chapter 1. Overview
11
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