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HP 1606 FICON Administrator's Guide v6.4.0 (53-1001771-01, June 2010) - Page 33

FICON and FICON CUP in Virtual Fabrics

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FICON and FICON CUP in Virtual Fabrics 2 FICON and FICON CUP in Virtual Fabrics There are three different addressing modes to provide extended functionality in dynamically created partitions. These are: • Fixed addressing mode • Flat addressing mode • Auto addressing mode Because flat addressing mode allocates 10-bit areas by default, auto-addressing mode is used to support FICON in dynamically created partitions. Use the fabric parameters of the configure command to enable this mode. There are two options for 256 area limit. The example of port addresses assigned in increasing order is option 1. Port addresses in option 2 will always equal the physical port area. Example of the configure command Enable a 256 Area Limit: (0..1) [1] In this mode, the area field of the PID is allocated dynamically to the F_, FL_, EX_, and E_Ports up to a maximum of 256 areas. As ports are assigned to the logical switch, they are assigned port addresses in an increasing manner. The port address numbering can be explicitly specified using the portAddress command, switch:admin> portaddress --bind s/p 16-bit-PID --auto 1 NOTE The portAddress --bind command is not supported with the portSwap command. In the auto-addressing mode, this command will use only the high order 8-bits of the 16-bit area field in the PID address that is specified in the portAddress command. For example, the following command: switch:admin> portaddress --bind 12/28 0200 -auto 1 will result in a port that appears as: Index Slot Port Address 252 12 28 3e0200 Port addresses that have not been assigned to a logical switch will appear as "uninstalled" in the PIB's Port Descriptor. For FICON CUP, FMS mode is enabled on the logical switch and not the chassis. For example, in a Virtual Fabric environment on the Brocade 5100 switch and the Brocade DCX and DCX-4S, one would set CUP on each logical switch (currently limited to 2 logical switches per chassis). FICON Administrator's Guide 21 53-1001771-01

Section	Page
Contents	3
About This Document	7
In this chapter	7
How this document is organized	7
Supported hardware and software	8
What’s new in this document	8
Document conventions	8
Text formatting	8
Command syntax conventions	9
Command examples	9
Notes, cautions, and warnings	9
Key terms	10
Notice to the reader	10
Additional information	10
Brocade resources	10
Other industry resources	11
Getting technical help	11
Document feedback	12
Introducing FICON	13
In this chapter	13
FICON overview	13
Fabric OS support for FICON	13
Platforms supporting FICON	14
Latency guideline	15
Packet loss guideline	15
Storage application guideline	15
FICON concepts	16
FICON configurations	18
Switched point-to-point	18
Cascaded FICON	19
Access Control in FICON	20
Cascaded Zoning	20
Error reporting	23
Secure access control	23
FICON commands	25
Administering FICON Fabrics	27
In this chapter	27
User security considerations	27
Preparing a switch for FICON	27
Cascaded FICON and 2-byte addressing considerations	28
Configuring switched point-to-point FICON	28
Configuring Cascaded FICON	32
FICON and FICON CUP in Virtual Fabrics	33
Clearing the FICON management database	34
Configuring FICON CUP	35
In this chapter	35
Control Unit Port (CUP) overview	35
FICON CUP restrictions	36
CUP configuration recommendations	37
FICON CUP zoning and PDCM considerations	37
Port and switch naming standards for CUP	38
FICON CUP commands	38
Configuring FICON CUP	39
Configuring FICON CUP in Virtual Fabrics	40
Determining physical port assignment	41
FMS mode and FICON CUP	42
FMS mode and Virtual Fabrics	43
Displaying FMS mode	43
Enabling FMS mode	43
Disabling FMS mode	43
Setting up FICON CUP if FMS mode is already enabled	43
Mode register bit settings	44
FICON file access facility	45
Setting the mode register bits	46
Setting the MIHPTO value	47
Persistently enabling and disabling ports for CUP	47
Administering FICON Extension Services	49
In this chapter	49
FICON emulation overview	49
XRC emulation	50
Tape Pipelining	50
Platforms supporting FICON extension over IP	52
FCIP configuration requirements for FICON extension	52
Configuration requirements for switches and directors	52
Configuration of sufficient buffer credits	53
High integrity fabric requirements for cascaded configurations	53
FICON emulation requirement for a determinate path	53
Cross-coupled configurations	54
Configuring FICON emulation	55
Displaying FICON emulation configuration values	56
Modifying FICON emulation	57
Displaying FICON emulation performance statistics	58
FICON emulation monitoring	58
Maintaining and Troubleshooting FICON	61
In this chapter	61
Firmware management in a FICON environment	61
Upgrade/Downgrade Considerations	61
Firmware upgrade disruption	62
Non-Disruptive firmware upload and download	62
Configuration restoration in a FICON environment	62
Traffic Isolation Zoning	63
Determining Ports for the TI Zone	63
Enhanced TI Zoning	63
Port Fencing	69
Defining port fencing	69
Settings for FICON Environments	69
FICON information	70
Link incidents	70
Registered listeners	71
Node identification data	71
FRU failures	71
Port swapping	71
Blade swapping	72
IU Pacing	73
Frame pacing delay	73
Common FICON issues	73
Troubleshooting FICON	76
General information to gather for all cases	76
Switched point-to-point topology checklist	77
Cascaded topology checklist	78
Gathering additional information	78
Troubleshooting FICON CUP	79
Troubleshooting FICON NPIV	79
Configuration Information Record	81
EBCDIC Code Page	83

Match case Limit results 1 per page

FICON Administrator’s Guide

53-1001771-01

FICON and FICON CUP in Virtual Fabrics

There are three different addressing modes to provide extended functionality in dynamically

created partitions. These are:

•

Fixed addressing mode

•

Flat addressing mode

•

Auto addressing mode

Because flat addressing mode allocates 10-bit areas by default, auto-addressing mode is used to

support FICON in dynamically created partitions. Use the fabric parameters of the

configure

command to enable this mode. There are two options for 256 area limit. The example of port

addresses assigned in increasing order is option 1. Port addresses in option 2 will always equal the

physical port area.

Example of the configure command

Enable a 256 Area Limit: (0..1) [1]

In this mode, the area field of the PID is allocated dynamically to the F_, FL_, EX_, and E_Ports up

to a maximum of 256 areas.

As ports are assigned to the logical switch, they are assigned port addresses in an increasing

manner. The port address numbering can be explicitly specified using the

portAddress

command,

switch:admin>

portaddress --bind s/p 16-bit-PID --auto 1

NOTE

The

portAddress

bind

command is not supported with the

portSwap

command.

In the auto-addressing mode, this command will use only the high order 8-bits of the 16-bit area

field in the PID address that is specified in the

portAddress

command. For example, the following

command:

switch:admin>

portaddress --bind 12/28 0200 –auto 1

will result in a port that appears as:

Index Slot Port Address

========================

252

3e0200

Port addresses that have not been assigned to a logical switch will appear as “uninstalled” in the

PIB’s Port Descriptor.

For FICON CUP, FMS mode is enabled on the logical switch and not the chassis. For example, in a

Virtual Fabric environment on the Brocade 5100 switch and the Brocade DCX and DCX-4S, one

would set CUP on each logical switch (currently limited to 2 logical switches per chassis).