Channel, disk, and global memory directors
81
Symmetrix DMX-3 Hardware
Gigabit Ethernet
(GigE) remote
directors
GigE remote mezzanine cards on the MPCD enable remote director
functionality based upon Gigabit Ethernet technology that enable
direct Symmetrix-to-IP network attachment and eliminate the need
for expensive media converter appliances.
GigE support for SRDF on Symmetrix DMX systems:
â—† Increases the options for Symmetrix-to-Symmetrix connectivity.
â—† Allows the Symmetrix system to connect to your existing
Ethernet infrastructure and directly access high-speed data
transmission conduits using Internet Protocol (IP).
â—† Supports SRDF traffic to one or more remote Symmetrix systems
that also have GigE remote directors installed.
â—† Supports TCP/IP protocols and function layers.
â—† Is fully compatible with the SRDF protocols and other Symmetrix
DMX directors, drives, software, and protection schemes.
Symmetrix DMX GigE remote channels for SRDF transfer data at
speeds up to 1 Gb/s. The GigE director provides up to four 1 Gb/s
Ethernet ports and connects using LC connectors. It is compatible
with Symmetrix DMX-2 and Symmetrix 8000 systems.
Table 20 FICON director configurations
Maximum LCUs (logical control units) per port 64 (00 to FE)
Maximum LCUs per Symmetrix system 250
Maximum devices per LCU 256
Maximum logical paths per port 8,192
Maximum logical paths per LCU per port 128
Maximum DMX channel addresses per port 8,192
Maximum DMX channel addresses per Symmetrix system, base and alias 64,000
Maximum I/O host connections per Symmetrix DMX system
a
32
a. The maximum I/O connections are based on 8 FICON directors for the DMX-3. Contact your local EMC Sales Representative for specific
supported configurations.
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