Avago Technologies MegaRAID SAS 8204ELP - Manual (Page 59)

Technical Specifications 3-15
Copyright © 2007 by LSI Corporation. All rights reserved.
Cache configuration The SAS 8704ELP, SAS 8708ELP, and SAS 8880EM2
RAID controllers support the following battery-backed
cache configurations:
• 128 MB – 40b arrangement (3) 32Mx16, Double Data
Rate II @ 667 MHz battery-backed module
• 256 MB – 40b arrangement (3) 64Mx16, Double Data
Rate II @ 667 MHz battery-backed module
• 256 MB – 72b arrangement (5) 32Mx16, Double Data
Rate II @ 667 MHz battery-backed module
• 512 MB – 72b arrangement (5) 64Mx16, Double Data
Rate II @ 667 MHz battery-backed module
The SAS 8708EM2 RAID controller supports the following
battery-backed cache configurations:
• 128 MB – 40b arrangement (3) 32Mx16, Double Data
Rate II @ 667 MHz battery-backed module
• 256 MB – 40b arrangement (3) 64Mx16, Double Data
Rate II @ 667 MHz battery-backed module
The SAS 8888ELP RAID controller supports the following
battery-backed cache configurations:
• 256 MB – 72b arrangement (5) 64Mx16, Double Data
Rate II @ 667 MHz SDRAM intelligent transportable
battery-backed MiniDIMM module
• 512 MB – 72b arrangement (5) 128Mx16, Double Data
Rate II @ 667 MHz SDRAM intelligent transportable
battery-backed MiniDIMM module
Size of flash ROM
for firmware 4 Mbytes
Nonvolatile random
access memory
(NVRAM) 32 Kbytes for storing RAID configurations
Table 3.6 RAID Controller Specifications (Cont.)
Specification
MegaRAID SAS 8704ELP, MegaRAID SAS 8708ELP,
MegaRAID SAS 8708EM2, MegaRAID SAS 8880EM2,
and MegaRAID SAS 8888ELP RAID Controllers