HP
HP 372538-B21-RFB 512MB Battery Backed Cache
HP 512MB battery-backed cache module protects in-flight data and boosts Smart Array 6400 controller performance.
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Overview
Enhance Your Array Performance with Reliable Cache
Introducing the HP 372538-B21-RFB, a 512MB Battery Backed Cache module designed for Smart Array 6400 controllers. This essential component ensures data integrity and accelerates performance within your server environment.
Specifications:
- Brand: HP
- Model: 372538-B21-RFB
- Compatibility: Smart Array 6400 Series Controllers
- Cache Size: 512MB
- Backup: Battery Backed
Pros & Cons
👍 Pros
- Battery backup preserves cached data during power failures, protecting against in-flight write data loss
- 512MB cache capacity accelerates write operations on Smart Array 6400 RAID controllers
- Refurbished pricing makes it a cost-effective replacement for failed or missing cache modules in legacy servers
- Direct HP part compatibility ensures proper fit and controller recognition without firmware workarounds
👎 Cons
- Only compatible with the Smart Array 6400 series, limiting use to a narrow range of legacy HP servers
- Refurbished unit may have reduced battery lifespan compared to a new module
- 512MB capacity is modest by current standards and cannot be upgraded on this controller generation
- Limited availability as a legacy part means replacements may become increasingly difficult to source
Frequently Asked Questions
Which RAID controllers is this cache module compatible with?
This HP 372538-B21-RFB cache module is specifically designed for the HP Smart Array 6400 series controllers. Verify your server's controller model before purchasing.
What does "battery backed" mean for this cache module?
The battery backup retains cached write data in the event of a power failure, preventing data loss by preserving in-flight transactions until power is restored and data can be written to disk.
What does the RFB designation in the model number indicate?
RFB indicates this is a refurbished unit that has been tested and restored to working condition, typically at a lower cost than a new-old-stock replacement.
Will this module improve my server's storage performance?
Yes, the 512MB write cache allows the controller to acknowledge writes before they are committed to disk, significantly improving write performance for RAID arrays, particularly under heavy I/O workloads.
Is a battery included with this cache module?
The module is a battery-backed cache unit, meaning it includes the battery backup component necessary to protect cached data during power loss.
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