IBM z/OS - Manual (Page 86)

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• PCIX Cryptographic Coprocessor (PCIXCC) support
provides z/OS and Linux guest support for the PCIXCC
Feature available with the z990 and z890 severs. Deliv-
ery of the z/VM PCIXCC support satisfi es the Statement
of Direction made on May 13, 2003.
• The Systems Management APIs, introduced in z/VM
V4.4, provided a basic set of functions that may be
called by applications to allocate and manage resources
for guests running in z/VM virtual machines (virtual
images). Although these APIs are primarily intended
for managing Linux virtual images, they can be used
to manage many types of z/VM virtual machine. All
enhancements to the APIs in z/VM V5.1 have been imple-
mented using Version 2 (V2) of the RPC server. In addi-
tion to usability enhancements, new functions include:
– DASD volume management for virtual images
– VMRM confi guration fi le management
– Query status of active images
– Query VMRM measurement data
– Removal of user ID entries in an authorization fi le with
a single request
– Query all shared storage segments instead of one at a
time
• A new programming service is provided by an emulated
DIAGNOSE instruction that helps enable a guest virtual
machine to specify an action to be taken by CP when
the guest becomes unresponsive. A time interval and
action are specifi ed by the guest. If the guest fails to
reissue the DIAGNOSE instruction within the specifi ed
time interval, CP performs the action.
• A new publication, Getting Started with Linux on zSeries,
describes z/VM basics and how to confi gure and use
z/VM functions and facilities to create and manage Linux
servers running on zSeries processors. The publication
is designed to help systems personnel (system pro-
grammers, administrators, and operators) with limited
knowledge of z/VM deploy Linux servers on z/VM more
quickly and more easily.
Network Virtualization and Security
• The virtual IP switch, introduced in z/VM V4.4, was
designed to improve connectivity to a physical LAN for
hosts coupled to a guest LAN. The virtual switch has
been enhanced to provide enhanced failover support
for less disruptive recovery for some common network
failures helping to provide business continuity as well as
infrastructure reliability and availability.
• Authorization capabilities have been enhanced for z/VM
guest LANs and virtual switches by using Resource
Access Control Facility (RACF) or any equivalent Exter-
nal Security Manager (ESM) that supports this function.
It is designed to provide ESM centralized control of
authorizations and Virtual LAN (VLAN) assignment.
Technology Exploitation
• z/VM V5.1 supports the new z890 as well as the new
enhancements to the z990 including:
– Four Logical Channel SubSystems (LCSSs) on the
z990 and two on the z890
– Transparent sharing of internal and external channel
types across LCSSs such as ICB-3, ICB-4, ISC-3,
FICON Express, and OSA-Express
– Open Systems Adapter-Express Integrated Console
Controller (OSA-ICC) function
• Up to 24 real processor engines in a single z/VM image
on a z990 satisfi es the Statement of Direction made on
May 13, 2003.