Point-To-Point Topology - IBM TotalStorage DS6000 Attachment Manual

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2
Legend
v 1– is the host system.
v 2– is the storage unit.
Figure 1. Point-to-point topology
The storage unit supports direct point-to-point topology at a maximum distance of
500 m (1500 ft) at 1 Gb and 300 m (984 ft) at 2 Gb with the shortwave adapter.
The storage unit supports direct point-to-point topology at a maximum distance of
10 km (6.2 mi) with the longwave adapter.
Switched-fabric topology
The switched-fabric topology provides the underlying structure that enables you to
interconnect multiple nodes. You can use a fabric that provides the necessary
switching functions to support communication between multiple nodes.
You can extend the distance that the storage unit supports up to 300 km (186.3
miles) with a storage area network (SAN) or other fabric components.
The storage unit supports increased connectivity with the use of fibre-channel
(SCSI-FCP and FICON) directors. Specific details on status, availability, and
configuration options that are supported by the storage unit are available on
http://www-1.ibm.com/servers/storage/disk/ds6000.
The storage unit supports the switched-fabric topology with point-to-point protocol.
You should configure the storage unit fibre-channel adapter to operate in
point-to-point mode when you connect it to a fabric topology. See Figure 2 on page
14.
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Chapter 1. Introduction