1-3
EonStor GSa 5000 Series Hardware Manual
1.2.2 Rear panel
Number
Part
Description
11
Controller A
This controller module is the primary module, which contains the
SAS expansion board which distributes I/O functions to and from
the managing RAID system. This also handles the status of the
components via the SAS links with the RAID system.
11
Controller B
This part contains the second controller, also called the redundant
controller. This controller takes over the system functions when
Controller A fails to process.
11
PSU
These hot-swappable PSUs provide power to the system and each
PSU has a fan.
11
Power button
This button allows you to turn ON/OFF your storage system.
WARNING!
DO NOT remove the redundant components without a replacement on hand.
