EMC Symmetrix DMX-3, Product Manual

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78 EMC Symmetrix DMX-3 Product Guide
Symmetrix DMX-3 Hardware
the Fibre Channel front-end support capabilities for directors, their
Symmetrix devices, and their addressing.
Note: The numerical values for Symmetrix devices stated in Table 18 on
page 78 are the maximum allowed according to the architectural limits of the
microcode running on the Fibre Channel front-end director. The actual limits
allowed for customer environments will be lower and are dependent on the
host type, HBA and driver type/version, and overall system implementation.
Also, note that using metadevices will reduce the number of host-visible
volumes for a given number of devices (Symmetrix Devices) configured to
the Fibre Channel front-end director; that is, each member of the metadevice
will be counted to the allowed limit of devices configured to a Fibre Channel
front-end director
.
For information on Fibre Channel host attachments, go to
the EMC Powerlink website.
The Symmetrix DMX-3 can support up to eight qualified Fibre
Channel directors. Contact your local EMC Sales Representative for
specific supported configurations.
Fibre Channel
adapters
(front-end)
The Symmetrix DMX-3 Fibre Channel adapters provide the
connectivity between the host channels and the Fibre Channel
front-end director through optical transceiver connections.
Note: Symmetrix Fibre Channel directors currently support connections to a
number of hosts supporting Fibre Channel connectivity. For a current list of
supported hosts, go to the EMC Powerlink website.
Fibre Channel
directors for SRDF
The Fibre Channel host director can be Enginuity-configured as the
link between Symmetrix units in a Symmetrix Remote Data Facility
(SRDF) configuration. The Fibre Channel director interfaces to
Symmetrix channels through the Fibre Channel interface adapter.
iSeries Fibre Channel
Connectivity
The Symmetrix Fibre Channel Adapters, through fibre, connect to the
iSeries 270 and 8xx models. When using directly connected fibre
devices (point-to-point) the maximum distance is 500 m in 1 Gb/s
mode.
Table 18
Symmetrix devices and addressing capabilities
for Fibre Channel front-end directors
Maximum Symmetrix devices and device addresses
Maximum Symmetrix devices per front-end
Fibre Channel processor complex
a
Symmetrix devices per processor complex 4,096
Symmetrix devices per Fibre Channel director 16,384
Addresses range per port 0–4,095 (0x000–0xFFF)
a. Each Fibre Channel front-end director has four processor complexes.