Hitachi VSP E590 - Page 18

Number Item Description
4 Uninterruptible
power supply port
NA
5 Cache flash
memory
NA
Number Item Description
1 BACKUP STS LED
■
Green: Restoration in progress following power
outage.
●
Fast Blink: Restoring.
●
Slow Blink: Restoring or sequential shutdown
in progress.
2 CTL ALM LED
■
Red: Controller can be removed.
●
Failure with the controller's power supply unit.
■
Amber: LAN reset switch was pressed.
3 ALARM LED (for CFM ) Red: Cache flash memory can be removed.
Front-end modules
The front-end modules (FEMs), also called channel boards (CHBs), control the transfer of
data between the host and cache memory. The storage system supports Fibre Channel (FC)
and iSCSI front-end modules (FEMs) for attachment to host servers. The front-end module
LEDs indicate the operating status of the module.
Front-end modules
Chapter 2: Hardware overview
Hitachi Virtual Storage Platform E590 and E790 Hardware Reference Guide 18