Fibre Channel Connections; Direct-Managed Storage Subsystems - IBM TotalStorage FAStT600 Installation And User Manual

Fibre channel storage server
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Fibre Channel connections

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Direct-management method:
This method uses Ethernet connections from a management station to each
controller. You must install at least one management station. The management
station can be the host or a workstation on the Ethernet network. A management
station will have the client software installed. Attach Ethernet cables to each
management station (one pair per storage server). You will connect the cables to
each controller later when you install the storage server. Figure 20 shows the direct
management method.
Controller
Controller
Controller
Controller
Storage subsystems
Ethernet
Figure 20. Direct-managed storage subsystems
FAStT600 Fibre Channel connections consist of two host Fibre Channel loops and
up to one drive Fibre Channel loop, depending on the storage server model. These
Fibre Channel connections are made through three SFP ports, which are labeled
"Host 1," "Host 2," and "Expansion."
Exception: The FAStT600 single-controller storage server (Model 6LU/6LX) does
not support drive loops or expansion units.
The host Fibre Channel loop provides the fibre path for host attachment. It can
consist of Fibre Channel cables, SFPs, host bus adapters, Fibre Channel switches,
and RAID controllers. The expansion drive Fibre Channel loop provides the fibre
path to the hard disk drives (HDDs) that are outside the FAStT600 storage server
Host computer
Fibre Channel
I/O path
Note: The client software is
installed on one or more
management systems,
or on the host computer.
Management station
Chapter 2. Installing and configuring the storage server
25

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