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EMC Symmetrix DMX-3 Product Guide
Symmetrix DMX-3 Hardware
Channel director
descriptions
Symmetrix DMX-3 channel directors are single boards that occupy
one slot on the Symmetrix midplane. All channel directors interface
to host channels through interface adapter cards connected to the
opposite side of the midplane. The Symmetrix DMX-3 supports up to
12 channel directors.
Note: Appendix C “Planning and Installation,”provides information on
mainframe and open systems channel director configurations. Contact your
local EMC Sales Representative for specific supported configurations.
All channel directors contain four high performance processor
complexes. The channel directors process data from the host and
manage access to global memory over a direct matrix (DMX)
technology (Figure 8 on page 54). Each channel director on the
Symmetrix DMX-3 supports eight internal links to global memory.
DMX technology is used across the Symmetrix system, as it is also
designed into each global memory director. In addition to DMX
technology, each director includes support for a separate message
matrix for the transfer of control information.
Note: “DMX-3 point-to-point message matrix” on page 55 and
“DMX-3 communications and environmental control” on page 89
provide information on the Symmetrix DMX message matrix.
Table 17 on page 77 describes the DMX-3 channel director models.
Table 16 Supported protocols and Symmetrix DMX-3 channel directors
Protocol
a
Usable system ports
b
Ports per channel director
4 Gb/s Fibre Channel host/SAN ports 2-64 1-8 per Fibre Channel Director
2 Gb/s Fibre Channel remote replication ports 2-8 1-4 per Fibre Channel Director
1 Gb/s iSCSI ports 2-32 1-4 per Multiprotocol Channel Director
1 Gb/s GigE remote replication ports 2-8 1-4 per Multiprotocol Channel Director
1 Gb/s GigE IPv4/v6 (IPsec capable) 2-8 1-4 per Multiprotocol Channel Director
4 Gb/s FICON host ports 2-32 1-4 per Multiprotocol Channel Director
ESCON host ports 2-80 1-8 per ESCON Channel Director
ESCON remote replication ports 2-8 1-4 per ESCON Channel Director
a. Contact your local EMC Sales Representative for ESCON channel director and GigE Remote support availability.
b. Usable ports are per qualified channel directors.
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