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for about 5 seconds. It provides the same function as
the Power on and Shut Down function in the High
45 Ports
Orange
Green = 10 GbE connection
Orange = 1 GbE connection
45 Ports
LAN1/LAN2 link/activity
Green = Network link
Flashing = Network activity
Model
ES1640dc v2)
SFP+
LAN1/LAN2/LAN3/LAN4
Speed LED
Orange
Off
Green = 10 GbE connection
Orange = 1 GbE connection
Model
ES1640dc v2)
SFP+
LAN1/LAN2/LAN3/LAN4
Off
Green = Network link
Flashing = Network activity
Link/activity LED
Off
Green = Network link
Flashing = Network activity
Speed LED
Orange
Orange = 1 GbE connection
Green = 100Mbpsconnection
System reset button for rebooting the Storage
Controller without turning off the system power.
LAN-10G2T-X550 NIC for 2 x 10GbE (RJ45) Port
Dual path Mini-SAS (SFF-8644) expansion card on
board
* The dual active-active controller system enables a controller to take over the pool disk resources
and access the data upon the failure of the other controller. Takeovers can be initiated manually or be set
up with the automatic system failover protection (please refer to the software user manual).
**Storage Controller A (or B) has taken over the system. Storage Controller B (or A) has been
recovered and it is ready to resume data service. Giveback can be initiated manually or be set up with
automatic failback after system recovers (please refer to the software user manual).
Storage Controllers
With the dual-controller configuration, the controller on the left is Storage Controller A (SCA) and the
right is Storage B (SCB), as named in the QES, when viewed from the rear of the system. The dual-
controller configuration offers redundant access to disk storage. In the case of a controller or an I/O
path failure, the redundant controller will continue to provide access to disk drives.