Hardware User's Guide

Intel® Integrated RAID Module RMS25PB080N and RMS25CB080N Hardware User’s Guide 19
mode selection takes immediate effect while the server is online and is available on a per
virtual drive basis. The ROC memory controller provides single-bit ECC error correction
with multi-bit detection support.
Note: Intel Corporation strongly recommends using an uninterrupted power supply (UPS).
Diagnostic Components
Audible Alarm
The audible alarm beeps when a drive fails and also during a rebuild. The drive failure
alarm beeps are:
• Degraded array: Short tone, one second on, one second off.
• Failed array: Long tone, three seconds on, one second off.
• Hot spare commissioned: Short tone, one second on, three seconds off.
The drive failure tones repeat until the problem is corrected, or until the alarm is silenced
or disabled. The alarm can be silenced or disabled on the controller’s properties page in
the BIOS Console or by using the failed drive options pane in the Intel
®
RAID Web
Console 2.
Silencing the alarm is temporary. If the cause of failure still exists or if an additional
failure is detected, then the alarm sounds again when the system is rebooted. Disabling the
alarm is persistent across errors and reboots. When the alarm is disabled, a failure does not
cause it to sound until it is re-enabled.
The rebuild alarm tone functions differently. It remains ON during the rebuild. After the
rebuild completes, an alarm with a different tone sounds to signal that the rebuild is
complete. This is a one-time, non-repeating tone.
LED Placement and Function
The Intel
®
Integrated RAID Module RMS25PB080N and RMS25CB080N contain the
following LEDs:
• One surface-mounted heartbeat LED (Green Color) to indicate SAS2208 activity.
• Another two surface-mounted system error LEDs (Amber Color) to indicate a
board error.
SAS/SATA Connectors
The Intel
®
Integrated RAID Module RMS25PB080N and RMS25CB080N provide two
internal SFF8087 SAS/SATA signal connectors. Each SFF8087 connector provides
support for four SAS/SATA ports. The sideband signals are configured to adhere to the
SFF-8485 Specifications for SGPIO support.