IBM DS8882F, Введение и руководство по планированию

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v The reconfigure extent pool function of the extent pool
v The dynamic extent relocation with an Easy Tier managed extent pool
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 DS8000 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.
Operating environment license
The operating environment model and features establish the extent of IBM
authorization for the use of the IBM DS operating environment.
Thin provisioning
Thin provisioning defines logical volume sizes that are larger than the physical
capacity installed on the system. The volume allocates capacity on an as-needed
basis as a result of host-write actions.
The thin provisioning feature enables the creation of extent space efficient logical
volumes. Extent space efficient volumes are supported for FB and CKD volumes
and are supported for all Copy Services functionality, including FlashCopy targets
where they provide a space efficient FlashCopy capability.
z-synergy Services license
The z-synergy Services license includes z/OS
®
features that are supported on the
storage system.
The z-synergy Services license is available for the following license scope: CKD.
The z-synergy Services license includes the following features:
v
High Performance FICON for z Systems
v HyperPAV
v Parallel Access Volumes (PAV)
v Transparent cloud tiering
v z/OS Distributed Data Backup
The z-synergy Services license also includes the ability to attach FICON channels.
The z-synergy Services license feature codes are ordered in increments up to a
specific capacity. For example, if you require 160 TB of capacity, order 10 of feature
code 8351 (10 TB each up to 100 TB capacity), and 4 of feature code 8352 (15 TB
each, for an extra 60 TB).
The z-synergy Services license includes the feature codes listed in the following
table.
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DS8882F Introduction and Planning Guide