Areca ARC-1882LP User Manual download pdf (Page 36)

HARDWARE INSTALLATION

PIN Description PIN Description

1 Power (+5V) 2 GND

3 LCD Module Interrupt 4 Protect Key

5 LCD Module Serial Data 6 Fault/Activity Clock

7 Fault/Activity Serial Data 8 LCD Module Clock

The following picture and table is the serial bus signal name de-

scription for LCD & fault/activity LED.

Areca serial bus also supports SES (SCSI Enclosure Services) over

C over internal I

C backplane cable. The backplane cable can

connect the I2C signal from Areca controller to the backplane using

IPMI-style I

C 3-pin connector. It means you link I

C cable into back

plane, and let back plane LED indicate HardDisk fail status.

2.5 Hot-plug Drive Replacement

The RAID controller supports the ability of performing a hot-swap

drive replacement without powering down the system. A disk can

be disconnected, removed, or replaced with a different disk without

taking the system off-line. The RAID rebuilding will be processed

automatically in the background. When a disk is hot swap, the

RAID controller may no longer be fault tolerant. Fault tolerance will

be lost until the hot swap drive is subsequently replaced and the

rebuild operation is completed.

2.5.1 Recognizing a Drive Failure

A drive failure can be identied in one of the following ways:

1). An error status message lists failed drives in the event log.

2). A fault LED illuminates on the front of RAID subsystem if

failed drives are inside.

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Areca ARC-1882LP User Manual Page 36