Adaptec RS Series Guide de l'utilisateur télécharger pdf (Page 37)

4-3

Environmental Monitoring

In-Band Reporting

The VEM communicates with the host system using in-band reporting and sup-

ports both SAF-TE and SES protocols. The VEM card sits on the SCSI bus and

communicates directly to the host(s). The VEM card has it’s own SCSI ID (see

below) and is seen as a separate target by the host(s).

VEM SCSI ID

The VEM sits on the SCSI bus and as such it is assigned a SCSI ID. The VEM is

assigned a SCSI ID of 15 for single shelf configurations and a SCSI ID of 15 and

13 for dual shelf configurations. For more details on the SCSI ID mapping refer

to “SCSI ID Mapping” in Chapter 3.

VEM Fault Notification

The VEM has an LED mounted on it to warn of over-temperature conditions. If

an over temperature condition exists, the temperature LED (Temp) will come on,

and the alarm buzzer will sound. The alarm buzzer can be turned off by using the

Alarm Silence Button (Mute) on the VEM card.

NOTE: The alarm silence button (Mute) temporarily silences the alarm

buzzer; it does not stop the error LEDs from flashing.

In addition to the temperature LED mounted on the VEM card, the VEM also

drives fault LEDs mounted on each ACM assembly, Power Supply Carrier and

Disk Drive Carrier.

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Adaptec RS Series Guide de l'utilisateur Page 37