Power Cord Connection; Testing Enclosure Connections; Grounding Checks; Host System Requirements - Seagate RealStor 5005 Series Hardware Installation

Power cord connection

Connect a power cord from each PCM on the enclosure rear panel to the PDU (power distribution unit) as shown in the
illustration below (4-port SAS model is shown in the example).
Figure 30 Typical AC power cord connection from PDU to PCM
IMPORTANT: When more than one PCM is fitted, all power cords must be connected to at least two separate and
independent power supplies to ensure redundancy. When the storage system is ready for operation, ensure that each
PCM power switch is set to the On position. See also
CAUTION: Power connection concerns:
• Always remove the power connections before you remove the PCM from the enclosure.
• When bifurcated power cords (Y leads) are used, these cords must only be connected to a supply range of 200–240V AC.

Testing enclosure connections

See "Powering on/powering off" (page
connected as described in

Grounding checks

The product must only be connected to a power source that has a safety electrical earth connection.
CAUTION: If more than one 2U enclosure goes in a rack, the importance of the earth connection to the rack increases
because the rack will have a larger Earth Leakage Current (Touch Current).
Examine the earth connection to the rack before power on. An electrical engineer who is qualified to the appropriate local
and national standards must do the examination.

Host system requirements

Hosts connected to a 5005/4005 Series controller enclosure must meet the following requirements:
Depending on your system configuration, host operating systems may require that multipathing is supported.
If fault tolerance is required, then multipathing software may be required. Host-based multipath software should be used
in any configuration where two logical paths between the host and any storage volume may exist at the same time. This
would include most configurations where there are multiple connections to the host or multiple connections between a
switch and the storage.
Controller Enclosure
Power Distribution Units (AC UPS shown)
54). Once the power-on sequence succeeds, the storage system is ready to be
"Connecting the enclosure to hosts" (page
"Powering on/powering off" (page
42).
54).
Power cord connection 41