Cache protection module LSI Broadcom CVM02 — for Broadcom 9460/9480 Series

LSI Broadcom CVM02 is a cache protection module designed for Broadcom 9460 and 9480 Series RAID controllers. It provides hardware-level protection for controller cache data during power loss or system faults by preserving cached write data in non-volatile storage until the system can complete writes to the storage media. The module integrates with compatible controllers to maintain cache integrity and to support reliable write-back caching in enterprise storage environments.

Advantages

The module transfers cached data to non-volatile flash storage when a power event or system fault occurs, removing dependence on volatile DRAM alone and reducing the risk of data loss. Using flash-based CacheVault technology instead of a battery reduces routine hardware maintenance associated with replaceable batteries and lowers total cost of ownership. The design supports automated backup and restore of cache contents so normal controller operation can resume once power is restored.

Suitable for

• Enterprise servers using Broadcom 9460 or 9480 Series RAID controllers
• Database and virtualisation hosts requiring reliable write-back caching
• Storage arrays where protection of in-flight writes is required

Key specifications

• Compatibility: designed for integration with Broadcom 9460 and 9480 Series controllers
• Protection method: flash-based non-volatile cache backup to preserve cached writes during power loss
• Maintenance: flash-based design that eliminates need for user-replaceable batteries
• Function: automatic transfer of cached data to non-volatile storage on power events and restore on power recovery

How to use

Install the CVM02 module into the compatible Broadcom 9460/9480 Series controller according to the controller manufacturer’s installation instructions. Ensure the controller firmware supports the CacheVault feature and that the module is seated and connected per the RAID card documentation. During normal operation the module remains idle; on a detected power failure or fault the module automatically powers critical components and transfers cached data to the built-in non-volatile flash, then restores that data to cache when power is stable again.

Usage recommendations

Verify firmware compatibility and controller support before installation. Place the server on a stable power source and use appropriate surge protection. Monitor controller firmware updates from Broadcom/LSI and follow vendor guidance for firmware and hardware maintenance to ensure continued cache protection functionality.