IBM DS8880 Series, Introduction And Planning Manual

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zHPF is an optional feature of z Systems server and of the DS8880. Recent
enhancements to zHPF include Extended Distance Facility zHPF List Pre-fetch
support for IBM DB2
®
and utility operations, and zHPF support for sequential
access methods. All of DB2 I/O is now zHPF-capable.
IBM HyperPAV
IBM HyperPAV associates the volumes with either an alias address or a specified
base logical volume number. When a host system requests IBM HyperPAV
processing and the processing is enabled, aliases on the logical subsystem are
placed in an IBM HyperPAV alias access state on all logical paths with a given
path group ID.
Parallel Access Volumes
The parallel access volumes (PAV) features establish the extent of IBM
authorization for the use of the parallel access volumes function.
Parallel Access Volumes (PAVs), also referred to as aliases, provide your system
with access to volumes in parallel when you use an IBM Z host.
A PAV capability represents a significant performance improvement by the storage
unit over traditional I/O processing. With PAVs, your system can access a single
volume from a single host with multiple concurrent requests.
Transparent cloud tiering
Transparent cloud tiering provides a native cloud storage tier for IBM Z
environments. Transparent cloud tiering moves data directly from the storage
system to cloud object storage, without sending data through the host.
Transparent cloud tiering provides cloud object storage (public, private, or
on-premises) as a secure, reliable, transparent storage tier that is natively integrated
with the storage system. Transparent cloud tiering on the storage system is fully
integrated with DFSMShsm, which reduces CPU utilization on the host when you
are migrating and recalling data in cloud storage. You can use the IBM Z host to
manage transparent cloud tiering and attach metadata to cloud objects.
The storage system supports the OpenStack Swift and Amazon S3 APIs. The
storage system also supports the IBM TS7700 as an object storage target and the
following cloud service providers:
v Amazon S3
v IBM Bluemix - Cloud Object Storage
v OpenStack Swift Based Private Cloud
z/OS Distributed Data Backup
z/OS Distributed Data Backup (zDDB) is a licensed feature on the base frame that
allows hosts, which are attached through a FICON interface, to access data on
fixed block (FB) volumes through a device address on FICON interfaces.
If zDDB is installed and enabled and a volume group type specifies either FICON
interfaces, this volume group has implicit access to all FB logical volumes that are
configured in addition to all CKD volumes specified in the volume group. Then,
with appropriate software, a z/OS host can complete backup and restore functions
for FB logical volumes that are configured on a storage system image for open
systems hosts.
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DS8880 Introduction and Planning Guide