Avago Technologies MegaRAID SAS 8204ELP - Manual (Page 74)

3-24 MegaRAID SAS RAID Controller Characteristics
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Serial port
• 3-pin RS232-compatible connector (for manufacturing
use only) (SAS 8300XLP)
• UART interface connector (not RS232 compatible; an
adapter is required) (SAS 8408ELP, SAS 8308ELP,
SAS 8344ELP, SAS 8408E, SAS 8480E, and SAS
84016E)
• No serial port (SAS 8208ELP and SAS 8208XLP)
SAS controller(s) One LSISAS1068 SAS controller for all of the RAID
controllers except for the SAS 84016E RAID controller,
which has two LSISAS1068 SAS controllers, and the SAS
8300XLP RAID controller, which has no SAS controller
SAS bus speed 3 Gbits/s
SAS ports Two SAS connectors with four SAS ports each, except for
the SAS 8300XLP RAID controller, which has no SAS
connectors, and the SAS 84016E RAID controller, which
has four SAS (mini SAS 4i) connectors with four SAS
ports each
Cache configuration The SAS 8308ELP RAID controller and the SAS 8344ELP
RAID controller support the following battery-backed
cache configurations:
• Integrated 128 Mbyte Double Data Rate (DDR) I
333 MHz SDRAM with remote battery backup
• Integrated 256 Mbyte Double Data Rate (DDR) I
333 MHz SDRAM with remote battery backup
The SAS 8408E RAID controller, SAS 8480E RAID
controller, and SAS 84016E RAID controller support the
following battery-backed cache configuration:
• Integrated 256 Mbyte DDR II 400 MHz SDRAM
intelligent transportable battery-backed DIMM module
Size of flash ROM
for firmware 4 Mbytes
Nonvolatile random
access memory
(NVRAM) 32 Kbytes for storing RAID configuration
Table 3.10 RAID Controller Specifications (Cont.)
Specification MegaRAID SAS 8204ELP, MegaRAID SAS 8204XLP,
MegaRAID SAS 8208ELP, MegaRAID SAS 8208XLP,
MegaRAID SAS 8300XLP, MegaRAID SAS 8304ELP
MegaRAID SAS 8308ELP, MegaRAID SAS 8344ELP,
MegaRAID SAS 8408E, MegaRAID SAS 8480E, and
MegaRAID SAS 84016E RAID Controllers