Number
Item
Description
1
LINK LED
Green: Link status is normal.
2
ACT LED
Orange: Data is being transferred.
3
LAN 2
LAN port used by the user.
4
LAN 1
Maintenance LAN port used by service
personnel.
5
LAN ALARM LED
Red: LAN blade can be removed.
6
Uninterruptible power
supply (UPS) port
N/A
Back-end modules
The back-end modules (BEMs), also called disk boards (DKBs), control the transfer of
data between the drives and cache memory. The back-end module LEDs indicate the
operating status of the module.
Back-end modules
Chapter 2: System controller
Hitachi Virtual Storage Platform G700 Hardware Reference Guide
25