Mainframe Host Attachment and Operations Guide for Virtual Storage Platform Family

Version: A0-05-2x; 10.5.x
Audience: anonymous
Part Number: MK-96RD645-23
Published: 2026-02-03

Overview of mainframe operations
Mainframe compatibility and functionality
Connectivity
CU emulation and device emulation support
System option modes for mainframe operations
Mainframe system function enablement
Enabling the mainframe system functions
Disabling the mainframe system functions
Logical channel subsystems and multiple channel sets
FICON/zHPF host attachment
Host connection interface specifications
Attaching FICON/zHPF front-end directors
FICON/zHPF physical specifications
FICON/zHPF logical specifications
FICON/zHPF operating environment
FICON and FICON/zHPF protocol sequence
Hardware specifications
FICON front-end directors
Logical paths
Supported topologies
Point-to-point topology
Switched point-to-point topology
Cascaded FICON topology
Required high-integrity features
Path information
Physical host connection specifications
Logical host connection specifications
Enabling zHPF operations
zHPF feature activation
Enabling the zHPF feature
Installing zHPF in a cascading switch configuration
Removing the FICON/zHPF feature
Mainframe configuration using FICON (FC) native channels
Mainframe configuration
Storage subsystem IDs (SSIDs)
Mainframe hardware definition
Hardware definition using IOCP (z/OS, z/VM, or z/VSE)
Hardware definition using HCD (z/OS)
2107 CU emulation: defining CU image, base and alias address range
Definition of the storage system to z/VM and z/VSE systems
Definition of the storage system to z/TPF
Definition of the storage system to mainframe Linux
Mainframe operations
LDEV initialization
Using the QDASD option of the IBM z/OS DEVSERV MVS command
z/OS (MVS) cache operations
z/VM (VM/ESA) cache operations
z/VSE (VSE/ESA) cache operations
Mainframe configuration using FCP channels for z/VM, Linux on IBM Z, and z/VSE
FCP support
IOCP FCP channel definition
z/VM use of FCP channels to access LUNS and use them as E-devices
Obtaining the WWPN of the channel paths
Obtaining the Hitachi storage system WWPN
Hitachi storage system workflow
Verifying access to the provisioned LUNs
Configuring the emulated devices (E-devices)
Overview of Linux for IBM Z operations
Running Linux on zSeries hosts
Attachment of FC adapters on zSeries hosts running Linux
Access to storage systems using FC protocol from a zSeries host
Setting up a Linux for IBM Z system to use FC protocol devices on zSeries
z/VSE definition and use of FCP attached SCSI LUNS
Additional references for Linux for IBM Z, z/VM, and z/VSE systems
FICON encryption feature for IFCES
Using FICON encryption
Host requirements
Storage system requirements
Key management server requirements
Obtaining a client certificate
Configuring key management servers
Configuring Fibre Channel Endpoint Security for Mainframe
Enabling Fibre Channel Endpoint Security for Mainframe
Restrictions on using Fibre Channel Endpoint Security for Mainframe
Restrictions on MIH timer value that apply when using Fibre Channel Endpoint Security for Mainframe
Verifying the settings for authentication of FC device and EDIF on a host
Completing SIMs for Fibre Channel Endpoint Security for Mainframe
Troubleshooting FICON encryption
SIM codes for Fibre Channel Endpoint Security for Mainframe
Notes on using zDAC
Notes on executing the zDAC function
Message output
Specifications of open volumes

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