Quantum StorNext QD7000 Hardware Manual page 88

80 | Hardware Cabling Guide
The EF550 controller-drive tray and the EF560 controller-drive tray can be cabled to the
Note:
DE5600 drive trays only. The total number of drives in the storage array, including the drives in the
EF550 controller-drive tray or the EF560 controller-drive tray and those in all of the attached drive
trays, must not exceed 120. The total number of trays in the storage array, including the EF550
controller-drive tray or the EF560 controller-drive tray and all of the attached drive trays, must not
exceed five. The drive trays must contain only solid-state disks (SSDs).
When you cable the storage array, keep these points in mind:
• To connect an ESM/IOM to a controller-drive tray, use both of the SAS in ports on the ESM or
two of the SAS expansion ports on an IOM. Connect one SAS in port (or SAS expansion port) to
a SAS expansion port on controller A and the other SAS in port (or SAS expansion port) to a SAS
Expansion port on controller B in the controller-drive tray.
• To connect two drive trays, connect a SAS expansion port on an ESM/IOM in one drive tray to
one of the SAS in ports on an ESM or one of the SAS expansion ports on an IOM in the other
drive tray. Do not connect both SAS in ports on one ESM to other drive trays.
One E5500 or E5600 controller drive tray or one EF550 or EF560 flash array and one drive
tray