Intel® RAID Controller RS25DB080 Hardware User’s Guide 17
RAID transactions. Cache 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.
The Intel
®
RAID Controller RS25DB080 supports Intel
®
RAID Smart Battery
AXXRSBBU9.
The optional Intel
®
RAID Smart Battery AXXRSBBU9 provides a battery backup option
for data cached in the memory. It is connected remotely to the RAID controller through a
supplied cable. See below figure for reference only. Actual shape of the product may vary
from the figure.
Figure 7. Intel
®
RAID Smart Battery AXXRSBBU9
Note: Intel Corporation strongly recommends using an uninterruptible 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.
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