The Old Guard's Secret Weapon: HPE 516828-B21 600GB SAS Hard Drive Explained

HPE 516828-B21 600GB 15000RPM SAS Hard Drive: The Complete Buyer's Guide

Enterprise IT teams running legacy and mid-life ProLiant infrastructure often face the same challenge: finding a genuinely reliable, compatible replacement drive without paying for capacity or features they don't need. The HPE 516828-B21 600GB 15000RPM 3.5-inch Large Form Factor Dual Port SAS-6Gbps Enterprise Hard Drive is built specifically for this use case, delivering enterprise-grade performance and reliability for ProLiant Generation 5 through Generation 7 servers. This guide covers everything you need to know before buying, installing, or sourcing this drive for your data center.

What Is the HPE 516828-B21 Hard Drive?

The HPE 516828-B21 is a 600GB enterprise hard disk drive engineered for high-availability server and storage environments. It combines a 15,000 RPM spindle speed with a dual-port SAS 6Gbps interface, making it a workhorse component for workloads that demand fast, consistent, low-latency disk access — think transactional databases, virtualization hosts, and high-I/O application servers.

Unlike consumer or nearline drives, the 516828-B21 is purpose-built for 24/7 enterprise duty cycles, which is why it remains a popular choice for organizations maintaining ProLiant Gen5–Gen7 hardware well past its original shipping date.

Part Number and Cross-Reference Identifiers

The 516828-B21 is HPE's option part number for this drive, but the same physical unit ships under several related identifiers depending on the source and packaging:

• Option Part Number: 516828-B21
• Spare Part Number: 517354-001
• Model Numbers: EF0600FATFF, EF0600FARNA
• Assembly Numbers: 516810-003, 533871-003

If you see any of these numbers listed on a supplier's site, they refer to the same underlying drive, which is useful to know when comparing prices across vendors or verifying compatibility with a purchase order.

Manufacturer and Product Family

This drive was originally released under the HP brand before the company's split into HP Inc. and Hewlett Packard Enterprise (HPE). It is now sold and supported under the HPE Server Enterprise Hard Drives family, alongside related SKUs like the 516828-S21.

Key Technical Specifications

Understanding the exact specifications of the 516828-B21 helps ensure it's the right fit for your server chassis and workload requirements.

Capacity and Storage Performance

• Capacity: 600 GB
• Rotational Speed: 15,000 RPM
• Interface: SAS (Serial Attached SCSI), 6 Gbps
• External Transfer Rate: 6 Gb/sec
• Bytes per Sector: 512e

The 15,000 RPM spindle speed places this drive firmly in the high-performance tier of spinning storage, offering significantly lower seek times and higher IOPS than 7,200 RPM nearline SAS or SATA drives, which matters most in latency-sensitive, transaction-heavy environments.

Form Factor and Physical Dimensions

• Form Factor: 3.5-inch Large Form Factor (LFF)
• Width: 4 inches
• Depth: 5.8 inches
• Height: 1 inch
• Weight: approximately 1.52 lbs

The 3.5-inch LFF chassis is standard across most ProLiant Gen5–Gen7 rack and tower servers, so compatibility issues are rare as long as your server supports LFF drive bays rather than 2.5-inch SFF bays.

Interface and Connectivity Features

• Drive Technology: Air-filled
• Plug Type: Hot Plug
• Carrier Type: Standard Carrier (typically bundled with an HPE Standard Carrier/tray)
• Workload Type: Enterprise
• Port Configuration: Dual Port

The dual-port SAS design is one of the drive's most valuable features for production environments, discussed in more detail below.

Why Dual-Port SAS Architecture Matters

Dual-port SAS drives like the 516828-B21 are a deliberate design choice for enterprise infrastructure, not just a spec-sheet checkbox.

Redundancy and Failover Protection

Each dual-port SAS drive connects to the storage backplane through two independent SAS paths. If one path, cable, or controller port fails, the second path keeps the drive accessible without interrupting server operation. This redundancy is critical in RAID arrays and clustered storage configurations where a single point of failure could mean downtime or data loss.

Load Balancing and I/O Performance

Beyond redundancy, dual-port architecture allows I/O traffic to be distributed across both paths simultaneously in supported configurations. This load-balancing capability can improve throughput under heavy multi-user or multi-application workloads, compared to single-port SAS or SATA alternatives.

Hot-Swap Capability for Maximum Uptime

The 516828-B21 supports hot-plug replacement, meaning a failed or failing drive can be swapped out while the server continues running. Combined with RAID redundancy, this allows administrators to perform maintenance, capacity upgrades, or drive replacements without scheduling downtime — a critical requirement for production and customer-facing systems.

Server Compatibility: ProLiant Generation 5 to Generation 7

One of the most important considerations before purchasing this drive is confirming it will work with your specific server model and controller.

Supported ProLiant Server Lines

The 516828-B21 is validated for use across the ProLiant Generation 5, Generation 6, and Generation 7 server families, spanning several chassis types, including:

• ProLiant DL (rack-optimized) servers
• ProLiant ML (tower) servers
• ProLiant BL (blade) servers
• ProLiant SL (scalable/scale-out) servers

Because HPE reused LFF SAS drive bay designs across multiple generations, this drive has broad backward and forward compatibility within the G5–G7 range, making it a practical option for organizations running mixed-generation server fleets.

Checking Compatibility Before You Buy

Before ordering, it's worth confirming:

1. Your server supports 3.5-inch LFF drive bays (not 2.5-inch SFF only)
2. Your RAID/storage controller supports 6Gb/s SAS drives
3. Your server generation falls within the supported Gen5–Gen7 range
4. Any existing RAID array's drive requirements (matching capacity/speed is generally recommended for array consistency)

Consulting your server's QuickSpecs documentation or HPE's official compatibility matrix is the safest way to avoid ordering the wrong drive.

Common Use Cases for the HPE 516828-B21

This drive's performance profile makes it suitable for a range of enterprise storage roles.

Database and Transactional Workloads

The high rotational speed and low latency of 15K RPM SAS drives make the 516828-B21 well-suited to OLTP databases, ERP systems, and other applications where disk response time directly affects application performance.

Virtualization and Hypervisor Hosts

Virtualized environments generate highly random I/O patterns as multiple VMs compete for disk access. The combination of speed and dual-port redundancy helps this drive hold up under that kind of contention better than lower-tier storage.

RAID Array Deployments and Storage Refreshes

Because it's still readily available on the secondary and refurbished markets, the 516828-B21 is commonly used to:

• Replace failed drives in existing RAID arrays without a full storage overhaul
• Expand existing arrays with matching drives
• Extend the service life of ProLiant Gen5–Gen7 servers that are still handling production workloads

Buying Considerations: New, Refurbished, and Warranty Options

The 516828-B21 is no longer sold as new-in-box by HPE directly, so most buyers will source it through the secondary market. A few factors are worth weighing.

New Bulk vs. Refurbished Drives

Third-party server parts suppliers typically offer this drive in two conditions:

• New Bulk: Unused drives, often with a longer warranty (commonly around 90 days from resellers)
• Excellent Refurbished: Tested, pulled drives, often with a shorter warranty window (commonly 30 days to 1 year depending on the vendor)

For mission-critical deployments, it's worth prioritizing sellers who test drives before shipping and clearly disclose SMART data or burn-in testing procedures.

Warranty and Vendor Support

Since HPE's original warranty coverage for this legacy part number has typically expired, warranty terms now come from the reseller rather than HPE directly. Compare vendors on:

• Length of replacement warranty
• Return policy for dead-on-arrival (DOA) drives
• Whether the seller offers pre-purchase compatibility verification

Price and Total Cost of Ownership

Because 15K RPM SAS drives are a legacy technology relative to modern SSDs and NVMe storage, the 516828-B21 is generally priced as an affordable way to maintain or extend existing Gen5–Gen7 infrastructure — rather than as a long-term storage strategy for new deployments. It's most cost-effective when used to keep existing arrays running rather than as the foundation of new server builds.

Installation and Maintenance Best Practices

Getting the most reliable service from this drive comes down to a few installation fundamentals.

Proper Hot-Swap Installation

When installing a hot-swap drive like the 516828-B21:

1. Confirm the drive tray/carrier matches your server's bay design
2. Insert the drive firmly until it seats into the backplane connector
3. Allow the RAID controller to recognize the drive before initiating a rebuild
4. Monitor rebuild progress through your server's management interface (such as HPE iLO or the array configuration utility)

Monitoring Drive Health Over Time

Even enterprise-grade 15K RPM drives are mechanical components with a finite service life. Regularly review SMART data, RAID controller logs, and HPE Insight/iLO alerts to catch early warning signs like reallocated sectors or rising latency before a failure occurs.

Frequently Asked Questions

Is the HPE 516828-B21 the same as the 517354-001?

Yes. The 517354-001 is the spare part number for the same physical drive that ships under the 516828-B21 option part number. They are interchangeable.

Can this drive be used in Gen8 or later ProLiant servers?

The 516828-B21 is specifically validated for Generation 5 through Generation 7 ProLiant servers. Later generations typically use different backplane and firmware requirements, so compatibility should be verified separately for Gen8 and newer platforms.

What RAID levels work best with 15K RPM SAS drives like this one?

RAID 1, RAID 5, RAID 6, and RAID 10 are all commonly deployed with 15K RPM SAS drives, with the choice depending on your balance of redundancy needs, usable capacity, and performance requirements.

Is 600GB enough capacity for enterprise workloads?

For OS volumes, transactional databases, and I/O-intensive workloads where speed matters more than raw capacity, 600GB is a common and practical size. For bulk storage or archival needs, pairing this drive with higher-capacity nearline SAS drives in a tiered storage setup is a common approach.

Final Thoughts

The HPE 516828-B21 remains a relevant, capable option for organizations maintaining ProLiant Generation 5 through Generation 7 servers that need enterprise-grade reliability without a full infrastructure refresh. Its dual-port SAS design, 15,000 RPM performance, and broad compatibility across multiple ProLiant chassis types make it a dependable choice for RAID array maintenance, database performance, and virtualization workloads. When sourcing this drive, prioritize vendors offering tested inventory, clear warranty terms, and confirmed compatibility with your specific server model to ensure a smooth installation and long service life.