Features Of Connected Sans; Establishing Interoperability - HP SN3000B Administrator's Manual

Features of Connected SANs

Connected SANs provide additional features not possible with segregated SANs. Some of these
features are listed below:
•
•
•
•
•
•
•
Connectivity limitations of a metaSAN containing Fabric OS and M-EOS fabrics are limited only by
the scalability of each individual fabric. For the latest scalability information, refer to the
MyBrocade website at www.brocade.com. Refer to the M-EOS fabric documentation for scalability
considerations.

Establishing interoperability

The mechanism for establishing interoperability between the FC router and the M-EOS fabric varies
depending on whether the connected M-series switch is a McDATA Mi10K (M-EOSn) switch, or
some other M-series (M-EOSc) switch.
When an EX_Port is connected to an M-EOS edge fabric, the front domain ID must be within a range
the edge M-EOS switch can understand. Valid values are:
•
•
•
The default front domain ID assigned to the EX_Port remains at 160 when it is created. However,
when the EX_Port is connected to the M-EOSn switch, a daemon sends a request domain ID (RDI)
command that must be within the valid range M-EOS understands.
When an RDI command is sent to an M-EOSn switch with a valid domain ID defined by standards
and is not within the range an M-EOSn switch understands, the RDI request is rejected. This
behavior of the M-EOSn switch is different from that of M-EOSc switches.
For M-EOSc switches, if you set a front domain ID that is not within the valid range for M-EOS, then
in Fibre Channel routing, a daemon internally requests a valid M-EOS domain ID. Unless you
change the front domain ID, there is no impact.
Fabric OS Administrator's Guide
53-1002446-01
Island consolidation—Uses the Fabric OS v6.0 or later FC router to connect isolated M-EOS and
Fabric OS fabrics to share devices.
Backup consolidation—Consolidates backup solutions across Fabric OS and M-EOS fabrics.
Manageable large-scale storage network—Uses the Fabric OS v6.0 or later FC router to localize
traffic while connecting devices in the metaSAN. This provides a large number of fabrics with a
large number of devices.
Sharing across an FCIP link—Shares devices between Fabric OS and M-EOS fabrics over a
campus Ethernet or over long-distance IP links beyond 1000 km.
Sharing across a long-distance FC link—Shares devices between Fabric OS fabrics over
long-distance FC links as far as 300 km.
LUN sharing—Uses your high-end RAID array connected to an M-series switch to share targets
with a Fabric OS fabric; just connect one M-series switch port to an FC router EX_Port and the
one EX_Port to the Fabric OS edge fabric.
LSAN zone database binding—Increases FC router scalability to support more FC routers in the
backbone and support more devices in the metaSAN.
McDATA Fabric mode: 1 – 31 (interopMode 2)
McDATA Open mode: 97–127 (interopMode 3)
McDATA Open mode: 1–239 (M-EOSn switch only in McDATA open mode (interopMode 3) only.)
Establishing interoperability
A
509