Note: When connecting to the SAS ports on the left side of the node canister,
each host must be connected to both canisters. Both canisters must have the
same number of cables connected.
2. Arrange the cables to provide access to the hardware.
v USB ports. USB port access is required when you use a USB flash drive to
configure the system.
v The enclosure itself. Access is required to the hardware for servicing and for
safely removing and replacing components using two or more people.
Results
Figure 25 shows an example configuration with three SAS cables that are connected
to each canister.
Powering on the system
After you install all hardware components, you must power on the system and
check its status.
About this task
Attention: Do not power on the system with any open bays or slots.
v Every unused drive bay must be occupied by a filler panel.
v Filler panels must be installed in all empty host interface adapter slots.
Open bays or slots disrupt the internal air flow, causing the drives to receive
insufficient cooling.
Procedure
To power on the system, complete the following steps.
1. Power on the control enclosure. Use the supplied power cords to connect both
power supply units of the enclosure to their power sources. If the power
sources have circuit breakers or switches, ensure that they are turned on. The
enclosure does not have power switches.
Note: Each enclosure has two power supply units. To provide power failure
redundancy, connect the two power cords to separate power circuits.
2. From the rear of the control enclosure, check the LEDs on each node canister
(see Figure 26 on page 29).
v3500177
OK
IN
1
2
1 2
1 2 3
OK
IN
1
2
1 2
1 2 3
Figure 25. Example configuration with three SAS cables per canister
28 Storwize V3500: Quick Installation Guide
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