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Cisco

Cisco C890-M5-BBUHBA | RAID HBA Supercapacitor Backup Unit (cache power protection) for UCS C890 M5

SKU:C890-M5-BBUHBA

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Description

Field-replaceable supercapacitor module designed to provide power hold-up for RAID HBA cache, protecting in-flight data during unexpected power loss. Purpose-built for UCS C890 M5 configurations using RAID storage HBAs with cache protection.

Features

- Safeguards write cache data during power interruptions
- Designed for clean integration with UCS C890 M5 RAID HBA
- Health-monitored for proactive maintenance
- Tool-assisted, straightforward field replacement

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: When should the supercapacitor be replaced?
A: Replace if health monitoring reports degraded status or at the recommended service interval per platform guidance.

Q: Can I replace this while the server is running?
A: Follow the platform’s service manual. Many supercap replacements require a maintenance window and system power-down.

Q: Does this work with any RAID card?
A: It is intended for supported RAID HBAs in UCS C890 M5. Verify controller model compatibility before purchase.

Technical Specifications

- Function: Supercapacitor power backup for RAID HBA cache
- Protection: Preserves cached writes long enough to commit to non-volatile storage
- Compatibility: UCS C890 M5 with supported 12G SAS/SATA RAID HBA
- Form Factor: Chassis-mounted supercap with cable to HBA cache module
- Serviceability: Field-replaceable unit (follow platform service guide)
- Typical Retention: Short-term hold-up sufficient for cache destage (seconds to minutes)
- Operating Considerations: Replace on health alerts or end-of-life indication

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