Intel
®
Raid Controller SRCU41L User Manual
17
Storage Adapter Characteristics
3.3.3
Fault Tolerance
Table 8
shows the Intel
®
Raid Controller SRCU41L fault tolerance features.
3.3.4
Electrical Characteristics
This section provides the power requirements for the Intel
®
Raid Controller SRCU41Ls.
Table 9
lists the maximum power requirements, which include SCSI TERMPWR, under normal operation.
3.3.5
Thermal and Atmospheric Characteristics
For all Intel
®
Raid Controller SRCU41Ls, the thermal and atmospheric characteristics are
•
relative humidity range: 5% to 90% noncondensing
•
maximum dew point temperature: 32
°
C
•
airflow must be at least 300 lfm to keep the LSI53C1020 and LSI53C1030 heat sink
temperature below 80
°
C
The following parameters define the storage and transit environment for the Intel
®
Raid Controller
SRCU41L
•
temperature range:
−
40
°
C to + 105
°
C (dry bulb)
•
relative humidity range: 5% to 90% noncondensing
Table 8. Intel
®
Raid Controller SRCU41L Fault Tolerance Features
Specification
Intel
®
Raid Controller SRCU41L
Support for SMART
a
Yes
Optional Battery Backup for Cache Memory
3.6 V/600mAH battery pack. Up to 48 hours data
retention for
64 MB.
Drive Failure Detection
Automatic
Drive Rebuild Using Hot Spares
Automatic
Parity Generation and Checking
Yes
a. The Self Monitoring Analysis and Reporting Technology (SMART) detects up to 70 percent of
all predictable disk drive failures. SMART also monitors the internal performance of all motors,
heads, and drive electronics.
Table 9. Maximum Power Requirements
Storage
Adapter
PCI/PCI-X/
E12 V
PCI/PCI-X +5.0
V
PCI/PCI-X/
3.3 V
PCI PRSNT1#/
PRSNT2#
Power
Over the
Operating
Range
320-1
115 mA; used
only if battery is
present
1.5 A (PCI only)
N/A
15 W
0 °C to 55 °C
