EMC Symmetrix DMX-3, Руководство по эксплуатации продукта

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92 EMC Symmetrix DMX-3 Product Guide
Symmetrix DMX-3 Hardware
Channel attachments
The Symmetrix DMX-3 can attach to ESCON channels, FICON
channels, or Fibre Channels, or a mix of channel types. The physical
connection to a Symmetrix channel interface occurs at the connectors
on the channel adapters.
Note: The Symmetrix Enterprise Storage Platform (ESP) option is required
when both mainframe hosts (ESCON or FICON channels) and open systems
hosts (Fibre Channels, iSCSI, or GigE SRDF) connect to the same Symmetrix
system.
Consult your local EMC Sales Representative for the most current list
of supported hosts, models, operating systems, and EMC open systems host
support policies, or refer to the EMC Powerlink website.
FICON channel
interface
connections The Symmetrix DMX-3 FICON directors connect to mainframe hosts.
The four-port, four-processor MPCD and the FICON adapter provide
the capability for four concurrent operations through four physical
interfaces for communicating with the FICON channels in host
systems.
Note:
“FICON channel director” on page 80 contains more information on
the FICON director.
FICON channels use fiber optic cables. The current FICON
implementation supports data transfer rates up to 4 Gb/s. There are
two types of fiber-optic cables: multimode and single-mode.
Note: Symmetrix systems directly connect to FICON single-mode or
multimode cables. “Symmetrix FICON configurations” on page 94 contains
information on additional configuration options.
In the FICON environment, a link connects a host FICON channel
with a Symmetrix FICON channel interface. This link can be a direct
connection between the processor or LPAR and the FICON channel
interface. The link can also have a FICON director that branches off to
additional single-mode or multimode links with connections to
Symmetrix FICON channel directors.
Figure 17 on page 93 illustrates
several types of FICON channel attachments.
Table 21 on page 93 describes the maximum distances supported by
FICON cables.