Dell PowerVault MD1000, Hardware Owner'S Manual

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Operating Your Storage Enclosure
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Figure 2-1. EMM Cabling Diagram in Unified and Split Mode
4
Using the enclosure mode switch, select your mode of operation, either unified or split mode (see
Figure 1-7 for switch positions).
5
Connect power to the power supplies.
NOTICE:
To safeguard your storage enclosure against power problems, connect the AC power cable to a
protected power supply, such as a UPS, line conditioner, or surge protector. If possible, connect the two power
supplies to different circuits.
6
Turn on the on/off switches on all power supply/cooling fan modules (see Figure 1-8).
7
Turn on power to the host system.
8
Check the LED indicators on the front and back of the storage enclosure . If any amber fault indicators
are illuminated, see “Troubleshooting Your Enclosure.”
Changing Your Enclosure’s Operating Mode
If you decide to change the operating mode of your enclosure after initial configuration (for example,
from split mode to unified mode or vice versa), it is important to follow some basic steps to guard against
preventable problems.
Single-host configurations
Host controller
Host controller
Host controller
Host controller Host controller Host controller
Two-host configuration
Unified Mode
Split Mode