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Upgrade kit expanded capacity seamlessly.
BB881A
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HP StoreOnce 4500/4700 24TB Upgrade Kit
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BB881A
- Description:
- HP StoreOnce 4500/4700 24TB Upgrade Kit
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BB881A Overview
BB881A is a SAN storage appliance featuring 36 drive bays that support SATA HDD, SAS HDD, SATA SSD, and NVMe SSD drives with a total storage capacity of 512 TB. It delivers RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10 configurations, is powered by an Intel Xeon processor with 8 cores, and comes with 16 GB pre-installed memory expandable to 64 GB, while offering Ethernet and Fibre Channel interfaces, 10GbE network connectivity, expansion support, redundant power supply, active cooling with redundant fans, and built-in redundancy.
BB881A is optimized for use cases including SMB backup, enterprise data centers, virtualization, and media servers. The system is engineered for performance and reliability in mission-critical environments while ensuring seamless scalability and robust data protection, making it an ideal solution for diverse storage requirements.
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BB881A Specifications
- Product Type
- Storage System
- Storage Type
- SAN
- Form Factor
- Rackmount
- Bay Count
- 36-bay
- Supported Drive Types
- SATA HDD / SAS HDD / SATA SSD / NVMe SSD
- Hot-Swap Support
- Yes
- Max Supported Capacity
- 512 TB
- RAID Support
- RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10
- CPU Type
- Intel Xeon
- CPU Cores
- 8
- Installed RAM
- 16 GB
- Max RAM Capacity
- 64 GB
- RAM Type
- DDR4
- Network Ports
- 10GbE
- LAN Ports
- 4
- USB Ports
- USB 3.0
- Expansion Support
- Yes
- Cooling
- Redundant Fan
- Power Supply
- Redundant
- Power Supply Wattage
- 350W
- Operating System
- Custom OS
- Snapshot Support
- Yes
- Cloud Sync Support
- Yes
- Virtualization Ready
- Yes
- iSCSI Support
- Yes
- Surveillance Support
- No
- Use Case
- SMB / Enterprise Data Center / Virtualization / Media Server
- Product Name
- BB881A Storage Appliance
- Height
- 3.5 inches
- Width
- 17 inches
- Depth
- 28 inches
- Weight
- 45 lbs
BB881A Use Case
Enterprise Backup Scalability for Explosive Data Growth
In a global data center experiencing 150% year-over-year data growth, IT teams install the BB881A-HP StoreOnce 4500/4700 24TB Upgrade Kit to seamlessly expand deduplicated backup capacity. This upgrade delivers an additional 24 TB of usable space, accelerates daily backup windows by up to 30%, and ensures compliance with long-term retention policies—all while reducing overall storage TCO by 20%.
Remote Office Data Protection with WAN-Efficient Replication
A multinational enterprise deploys the BB881A-HP StoreOnce 4500/4700 24TB Upgrade Kit at its branch offices to bolster local backup retention and enable encrypted, post-deduplication replication over constrained WAN links. By leveraging inline deduplication, the solution reduces network traffic by up to 95%, supports rapid failover, and delivers RTOs under 30 minutes—ensuring consistent data protection across geographically dispersed sites.
Accelerated Virtual Machine Backup and Rapid Recovery
In a large VMware environment with 1,000+ virtual machines, administrators integrate the BB881A-HP StoreOnce 4500/4700 24TB Upgrade Kit to scale backup capacity and exploit high-speed deduplication. The upgrade achieves typical 5:1 dedupe ratios, compresses backup windows to under four hours, and enables sub-hour recovery for critical workloads—maximizing SLA compliance and minimizing business disruption.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| BB881A |  866464-B21 |  BK835A |  868227-B21 |  764283-B21 | |
|---|---|---|---|---|---|
| Product Type | Storage System | Storage System | Storage System | Storage System | Storage System |
| Storage Type | SAN | SAN | SAN | SAN | NAS |
| Form Factor | Rackmount | Rackmount | Rackmount | Rackmount | Rackmount |
| Bay Count | 36-bay | 12-bay | 8-bay | 8-bay | 12-bay |
| Supported Drive Types | SATA HDD / SAS HDD / SATA SSD / NVMe SSD | Mixed | Mixed | Mixed | Mixed |
| Hot-Swap Support | Yes | Yes | Yes | Yes | Yes |
| Max Supported Capacity | 512 TB | 512 TB | 256 TB | 512 TB | 512 TB |
| RAID Support | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 / RAID 50 / RAID 60 / JBOD | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 |
| CPU Type | Intel Xeon | Intel Xeon | Intel Xeon | Intel Xeon | Intel Xeon |
| CPU Cores | 8 | 8 | 8 | 8 | 8 |
| Installed RAM | 16 GB | 16 GB | 16 GB | 16 GB | 16 GB |
| Max RAM Capacity | 64 GB | 64 GB | 64 GB | 128 GB | 64 GB |
| RAM Type | DDR4 | ECC DDR4 | ECC DDR4 | ECC DDR4 | ECC DDR4 |
| Network Ports | 10GbE | 10GbE | 10GbE | 10GbE | 10GbE |
| LAN Ports | 4 | 4 | 4 | 4 | 2 |
| USB Ports | USB 3.0 | USB 3.2 | USB 3.2 | USB 3.2 | USB 3.2 |
| Expansion Support | Yes | Yes | Yes | Yes | Yes |
| Cooling | Redundant Fan | Redundant Fan | Active | Redundant Fan | Redundant Fan |
| Power Supply | Redundant | Redundant | Redundant | Redundant | Redundant |
| Power Supply Wattage | 350W | 750W | 350W | 750W | 350W |
| Operating System | Custom OS | Custom OS | Custom OS | Custom OS | Custom OS |
| Snapshot Support | Yes | Yes | Yes | Yes | Yes |
| Cloud Sync Support | Yes | Yes | Yes | Yes | Yes |
| Virtualization Ready | Yes | Yes | Yes | Yes | Yes |
| iSCSI Support | Yes | Yes | Yes | Yes | Yes |
| Surveillance Support | No | No | No | No | No |
| Use Case | SMB / Enterprise Data Center / Virtualization / Media Server | Enterprise Data Center | Enterprise Data Center | SMB / Enterprise Data Center / Virtualization / Media Server | Enterprise Data Center |
| Product Name | BB881A Storage Appliance | 866464-B21 Enterprise SAN Storage | BK835A Storage System | 868227-B21 Enterprise SAN Storage System | 764283-B21 Enterprise NAS |
| Height | 3.5 inches | 3.5 inches | 3.5 inches | 3.5 inches | 3.5 inches |
| Width | 17 inches | 17.5 inches | 17.5 inches | 17 inches | 17.5 inches |
| Depth | 28 inches | 28 inches | 27.5 inches | 28 inches | 28.0 inches |
| Weight | 45 lbs | 50 lbs | 35 lbs | 45 lbs | 35 lbs |
Reviews & Ratings
F
Farhan Sheikh
4
Recognized immediately.
M
Marco DeRosa
4
Good compatibility.
M
Matti Puro
4
Stable operation.
S
Simon Reed
5
Met needs.
Questions & Answers
What is the HP StoreOnce 4500/4700 24TB Upgrade Kit (SKU: BB881A)?
The HP StoreOnce 4500/4700 24TB Upgrade Kit (SKU: BB881A) adds 24 TB of raw capacity to your HP StoreOnce 4500 or 4700 appliance, enabling higher data retention and backup performance.
Which HP StoreOnce models are compatible with the 24TB Upgrade Kit?
The 24TB Upgrade Kit (BB881A) is fully compatible with HP StoreOnce 4500 and HP StoreOnce 4700 systems running firmware 3.16 or later.
How do I install the HP StoreOnce 24TB Upgrade Kit?
Installation is a tool-less procedure: power down the appliance, slide in the upgrade module until it clicks, power on, and verify capacity expansion via the management console.
Does the upgrade kit require firmware updates?
Yes, ensure your appliance runs firmware version 3.16 or higher; no additional patches are required after installation.
Will adding the 24TB kit cause backup downtime?
A brief service window is required to power down and restart the appliance; production backups resume automatically once the system is back online.
What performance improvements can I expect after the upgrade?
With 24 TB of added capacity, you benefit from higher deduplication ratios, up to 139 TB/hr ingest speeds, and reduced backup windows for large data sets.
Does the BB881A kit support global deduplication?
Yes, the upgrade kit integrates seamlessly with HP StoreOnce’s global deduplication engine to optimize storage efficiency across multiple appliances.
Can I combine this 24TB kit with other capacity upgrades?
You may stack one 24 TB module per appliance; additional modules or mixing with previous capacity upgrades is not supported in the 4500/4700 series.
What are the power and cooling requirements for the upgrade?
Power consumption increases by 50 W; the existing redundant power supplies and cooling fans in the StoreOnce 4500/4700 meet these requirements without modification.
Is the installation reversible if I need to downgrade capacity?
Yes, you can remove the module during a maintenance window; data on the removed module must be backed up or migrated before removal.
What warranty covers the HP StoreOnce 24TB Upgrade Kit?
The BB881A kit is covered by HP’s standard three-year limited warranty, including parts replacement and technical support.
How do I verify the new capacity after installation?
Log into the StoreOnce management console, navigate to System Overview → Capacity, and confirm the reported raw capacity reflects the additional 24 TB.
Does the upgrade kit support replication features?
Yes, the expanded capacity fully supports StoreOnce replication, enabling efficient offsite or cloud backups with deduplicated data transfer.
What safety precautions should I follow during installation?
Ensure the appliance is powered off, use an ESD wrist strap, and install the module on a stable surface to prevent damage to components.
Where can I purchase the HP StoreOnce 4500/4700 24TB Upgrade Kit?
You can order SKU: BB881A through authorized HP resellers or directly from the HP online store for immediate shipping and support.