Reference Guide

SPD
Non-
Volatile
1
U22
256 Bytes
SPD
No
Memory
configuration
data
Pre-programmed
before assembly
No write protect. Not
visible to Host
Processor
Cannot be cleared with existing
tools available to the customer
FLASH
Non-
Volatile
1
U1086
16 MB
FLASH
No
Card firmware
Pre-programmed
before assembly.
Can be updated
using Dell/LSI
tools
No write protect. Not
visible to Host
Processor
Cannot be cleared with existing
tools available to the customer
Backup
Flash
Non-
Volatile
1
U1100
8 GB
Backup
Flash
No
Holds cache
data during
power loss
FPGA backs up
DDR data to this
device in case of
a power failure
No write protect. Not
visible to Host
Processor
Flash can be cleared by powering
up the card and allowing the
controller to flush the contents to
VDs. If the VDs are no longer
available, cache can be cleared by
going into controller bios and
selecting Discard Preserved Cache
SDRAM
Volatile
9
U1077-
U1085
8 GB
SDRAM
No
Cache for HDD
I/O
ROC writes to this
memory - using it
as cache for data
IO to HDDs
No write protect. Not
visible to Host
Processor
Cannot be cleared with existing
tools available to the customer
H330
PERC
NVSRAM
Non-
volatile
1
U1033
128 KB
NVSRAM
No
Configuration
data
ROC writes
configuration data
to NVSRAM
No write protect. Not
visible to Host
Processor
Cannot be cleared with existing
tools available to the customer
FRU
Non-
volatile
1
U1019
256 Bytes
FRU
No
Card
manufacturing
information
Programmed at
ICT during
production.
No write protect. Not
visible to Host
Processor
Cannot be cleared with existing
tools available to the customer
1-Wire
EEPROM
Non-
volatile
1
U1004
128 Bytes
1-Wire
EEPROM
No
Holds default
controller
properties/settin
gs
ROC writes data
to this memory
No write protect. Not
visible to Host
Processor
Cannot be cleared with existing
tools available to the customer