Dell MD1200 Computer Drive User Manual


 
Operating Your Storage Enclosure 19
Operating Your Storage Enclosure
Before You Begin
Before connecting your storage enclosure, ensure that the following are
available:
Power cables
SAS cables
Rail kit
Dell Systems Management Tools and Documentation
media
Documentation
Getting Started Guide
Rack Installation Instructions
Safety instructions
Cabling Your Enclosure
You can cable your enclosure in either a unified-mode configuration or in a
split-mode configuration.
In a unified-mode configuration your
enclosure
is connected to one host,
for example, a server with a controller card. Your
enclosure
can be one of
up to four enclosures daisy-chained to a single port on the controller card
in your host server. The enclosure can also be connected in a redundant
path mode with two connections to single host server. See Figure 2-2 and
Figure 2-3 for cabling diagrams of a unified mode configuration.
In a split-mode configuration your
enclosure
is connected to either two
host controllers or two ports on a single host controller. You can connect
your enclosure to two different host servers in a split mode configuration.
Each server sees the enclosure as an independent device with half of the
total enclosure slot capacity. Table 2-1 lists the drives that are controlled by
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