Front-End Modules - Hitachi E590 Hardware Reference Manual

Number Item
4 Uninterruptible
power supply port
5 Cache flash
memory
Number
1 BACKUP STS LED
2 CTL ALM LED
3 ALARM LED (for CFM )

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.
Hitachi Virtual Storage Platform E590 and E790 Hardware Reference Guide
NA
NA
Item
■
■
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Red: Cache flash memory can be removed.
Chapter 2: Hardware overview
Description
Description
Green: Restoration in progress following power
outage.
Fast Blink: Restoring.
●
Slow Blink: Restoring or sequential shutdown
●
in progress.
Red: Controller can be removed.
Failure with the controller's power supply unit.
●
Amber: LAN reset switch was pressed.
Front-end modules
15