Four Channel Escon System With Two Ficon Channels Added - HP XP20000/XP24000 Operation Manual

Hp storageworks xp disk array mainframe host attachment and operations guide (a5951-96154, september 2010)

Hide thumbs Also See for XP20000/XP24000:

Table of Contents

Figure 18 Four channel ESCON system with two FICON channels added

This figure shows four ESCON adapters and two ESCON directors. The illustration also shows the

channel path group and FICON directors through which the two FICON adapters are installed in the

storage unit. The two FICON directors are not required.

You can improve reliability by eliminating a single point of failure. The single point of failure might

be present if both FICON channels are connected to a single FICON director. You can connect the

FICON channels to the storage unit FICON adapters directly, without directors.

This configuration gives you the most flexibility for future I/O changes. Because the channel path

group has ESCON and FICON channel paths, it makes migrating easier. This intermixing of types

of channel-paths enables you to non-disruptively add FICON channels to the host and to add FICON

adapters to the storage unit.

NOTE:

This configuration is supported for migration only.

Do not use this configuration for an extended period.

Migrate from a mixed channel-path group configuration to an all FICON channel-path group

configuration.

XP Disk Array Mainframe Host Attachment and Operations Guide

Table of Contents

Storageworks xp20000 Storageworks xp24000