Avago Technologies Cache Protection for RAID Controller Cards - Manual (Page 9)

Avago Technologies
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Cache Backup Products for MegaRAID SAS+SATA RAID Controllers User Guide
May 2015 Chapter 1: Introduction
CacheVault Flash Modules and CacheVault Power Modules
1.4 CacheVault Flash Modules and CacheVault Power Modules
The CVFM modules use a mezzanine-style board-to-board connector to provide capacitor charge maintenance,
capacitor health monitoring functions, USB/ONFI interface, and optionally SDRAM between a low-profile PCIe® 3.0
controller and the CVFM module. The CVFM modules are attached directly to RAID controllers and protect cached
data in different ways.
The CVFM modules connect to a CVPM module, which is a super-capacitor pack that provides power for the backup of
your data in case of power loss. The CVPM module is installed directly on the RAID controller or remotely, depending
on the specific module.
The CVPM module provides sufficient energy for the cache memory contents to be transferred from DRAM to a
nonvolatile flash memory array on the CVFM module.
1.4.1 Models of the CacheVault Flash Modules
Avago offers four models of the CacheVault Flash Modules:
 The CVFM01 product is a FPGA cache off-load module that is attached to a MegaRAID RAID controller and
connected by cable to a CVPM01 module that is installed on a remote mount board.
 The CVFM02 product is a USB cache off-load module that is attached to a MegaRAID RAID controller and
connected by cable to a CVPM02 module that is installed on a remote mount board.
 The CVFM03 product combines DDR cache with a USB cache off-load module that is attached to a MegaRAID
RAID controller and connected by cable to a CVPM02 module that is installed on a remote mount board.
 The CVFM04 product is an Open NAND Flash Interface (ONFI) flash module that is attached to a MegaRAID RAID
controller and connected by cable to a CVPM02 module that is installed on a remote mount board.
The following table lists and describes the CVFM modules, and identifies the RAID controllers that usethem.
Table 2 MegaRAID CacheVault Flash Modules Matrix
CVFM Product Name Description For RAID Controllers For Use With
CVFM01 On-board 512-MB nonvolatile DDR2
800MT/s transportable memory module MegaRAID SAS 9260CV-4i
MegaRAID SAS 9260CV-8i
CVPM01 module
(installed on a remote
mount board)
CVFM02 On-board USB DDR3 transportable
memory module MegaRAID SAS 9265CV-8i
MegaRAID SAS 9266-4i
MegaRAID SAS 9266-8i
MegaRAID SAS 9285CV-8e
CVPM02 module
(installed on a remote
mount board)
CVFM03 On-board 512-MB or 1-GB nonvolatile
DDR3 1333MT/s and USB transportable
memory module MegaRAID SAS 9265CV-8i
MegaRAID SAS 9285CV-8e
CVPM02 module
(installed on a remote
mount board)
CVFM04 Open NAND Flash Interface (ONFI) flash
module MegaRAID SAS 9361-4i
MegaRAID SAS 9361-8i
MegaRAID SAS 9380-4i4e
MegaRAID SAS 9380-8e
CVPM02 module
(installed on a remote
mount board)