Quantum StorNext QD7000 Hardware Manual page 93

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The following figure shows the drive ports (SAS expansion ports) on a dual-controller configuration
for the E2860 controller shelf. The drive ports are at the far right of each controller.
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Drive shelves
The following figures show the SAS ports on a DE212C drive shelf or a DE224C drive shelf. The I/O
modules (IOMs) occupy the top half of the shelf. Each IOM has four SAS-3 expansion ports. You
can connect these ports to SAS-3 expansion ports on another drive shelf or drive tray or to SAS
expansion ports on a controller shelf or controller-drive tray.
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The following figure shows the SAS ports on a DE460C drive shelf. The I/O modules (IOMs) occupy
the middle positions in the shelf Each IOM has four SAS-3 expansion ports. You can connect these
ports to SAS-3 expansion ports on another drive shelf or to SAS expansion ports on a controller
shelf.
Controller A
SAS port 1
SAS port 2
Controller B
Controller A
Controller B
SAS port 1
SAS port 2
IOM A
SAS port 1
SAS port 2
SAS port 3
SAS port 4