HPE 600GB SAS 10K SFF BC MV HDD - P53561-B21

HPE P53561-B21 600GB SAS 10K SFF Hot-Swap Hard Drive

Overview

The HPE P53561-B21 is a 600GB Serial Attached SCSI 3 (SAS 3) hot-swap hard drive in a 2.5" Small Form Factor (SFF) carrier — a purpose-built storage component for HPE ProLiant servers and storage systems that demand high-throughput, low-latency disk I/O without taking the system offline for maintenance. If you are provisioning or expanding storage in a production HPE server environment, the P53561-B21 (often searched as P53561 B21) is the drive to evaluate before considering third-party alternatives that may not clear HPE's firmware compatibility checks.

Key Features

• 600GB Capacity, Right-Sized for RAID Arrays: At 600GB per spindle, this drive hits the practical sweet spot for SAS RAID-5 and RAID-10 arrays in compute-dense environments — enough per-disk capacity to build meaningful storage pools without the rebuild-time risk that comes with larger SAS drives. Smaller capacity also means shorter RAID rebuild windows, which matters for uptime.
• SAS 3 Interface (Serial Attached SCSI 3): SAS 3 delivers up to 12Gb/s per lane — double the bandwidth of SAS 2. For workloads with sustained sequential throughput or deep I/O queues (database logs, virtualization datastores, security video archives), that headroom prevents the interface from becoming the bottleneck before the drive mechanics do.
• 10,000 RPM Spindle Speed: 10K RPM SAS drives occupy the performance-per-dollar position between 7.2K NL-SAS and 15K SAS. Random I/O latency drops meaningfully versus nearline drives, making this a practical choice for mixed read/write workloads where you cannot justify the premium of 15K SAS or the capacity trade-offs of all-flash.
• 2.5" Small Form Factor (SFF): The SFF form factor allows higher drive density per rack unit compared to 3.5" LFF configurations. In a 2U ProLiant server with 24 SFF bays, you get nearly three times the spindle count — and therefore three times the aggregate IOPS — versus an equivalent LFF configuration. Density matters when floor space or rack space is limited.
• Hot-Swap Design: The hot-swap carrier means you can pull and replace a failed drive without powering down the server or interrupting the array. For any environment running continuous workloads — 24/7 surveillance recording, always-on databases, production virtualization — this eliminates planned maintenance windows for routine drive replacements.
• HPE Basic Carrier (BC) Form Factor: The BC designation indicates this drive ships in HPE's Basic Carrier — the standard tray format compatible with HPE ProLiant Gen9, Gen10, and Gen10 Plus servers equipped with SFF bays. Verify your server's backplane supports SFF SAS before ordering; mixing BC and SC (Smart Carrier) trays in the same system is not supported without a tray swap.

Integration & Compatibility

The P53561-B21 is designed for integration into HPE ProLiant rack and tower servers with SFF SAS backplanes. SAS 3 backplanes are backward-compatible with SAS 2 hosts, but you will not realize full 12Gb/s throughput unless the host controller and expander also support SAS 3. Pair this drive with an HPE Smart Array controller for full RAID management, predictive failure alerting via HPE Integrated Lights-Out (iLO), and SmartDrive LED fault identification — features that are unavailable or degraded when using non-HPE drives in HPE server bays. For server storage deployments running HPE OneView or HPE SSA (Smart Storage Administrator), drives sourced through HPE's supply chain are recognized natively and report health telemetry without additional configuration. If you are evaluating HPE server components for a new build or capacity expansion, confirm the target server's QuickSpecs against this drive's carrier type and interface generation before finalizing your BOM.

Frequently Asked Questions

Q: Is the HPE P53561-B21 compatible with HPE ProLiant Gen10 servers?

A: The P53561-B21 is an HPE-branded SFF SAS 3 hot-swap drive in a Basic Carrier (BC) format, which is compatible with ProLiant Gen9 and Gen10 SFF SAS backplanes. Always verify your specific server model's QuickSpecs to confirm backplane interface version and carrier type compatibility before ordering.

Q: What is the difference between the Basic Carrier (BC) and Smart Carrier (SC) versions of this drive?

A: HPE Basic Carrier (BC) drives use a standard tray without the SmartDrive LED carrier board. Smart Carrier (SC) drives include an active carrier that provides individual drive LED fault identification and additional health telemetry through HPE iLO. BC and SC trays are not interchangeable within the same server without a physical tray swap.

Q: Can the P53561-B21 be used in a non-HPE server?

A: The drive itself uses a standard SAS 3 (12Gb/s) interface and will function mechanically in any SAS 3-compatible host. However, HPE-branded drives may present firmware lock messages or degraded health reporting in non-HPE RAID controllers. For non-HPE platforms, evaluate generic SAS 3 SFF drives to avoid compatibility complications.

Q: What RAID configurations does the 600GB capacity support?

A: 600GB SAS drives are commonly deployed in RAID-5 (3+ drives), RAID-6 (4+ drives), and RAID-10 (4+ drives) configurations. At 600GB per spindle, a 4-drive RAID-10 array yields approximately 1.2TB usable; a 6-drive RAID-5 yields approximately 3TB usable. Rebuild times are shorter than larger-capacity drives, reducing exposure during array recovery.

Q: Is this drive hot-swappable in all HPE ProLiant servers?

A: Hot-swap capability depends on the server's backplane and chassis design, not the drive alone. ProLiant servers with hot-plug SFF SAS backplanes support hot-swap operation. Confirm your server's documentation — some entry-level ProLiant models use non-hot-plug configurations even with SFF bays.

Q: What is the spindle speed of the P53561-B21?

A: The P53561-B21 spins at 10,000 RPM (10K RPM), positioning it between 7.2K nearline SAS drives (higher capacity, lower random I/O performance) and 15K SAS drives (lower capacity, highest random I/O performance). For mixed read/write workloads where cost and performance must be balanced, 10K SAS is typically the right tier.

Jerry Tildsen

When I look at the P53561-B21, the spec that shapes the deployment conversation most is the 10K RPM SAS 3 combination — you are getting 12Gb/s interface headroom with spindle latency that sits meaningfully below NL-SAS, and that pairing justifies this drive's position in workloads where all-flash is over-budget but nearline latency is unacceptable.

Technical Highlights:

• SAS 3 at 12Gb/s: Double the interface bandwidth of SAS 2, which means the host bus adapter is not the ceiling — drive mechanics are. For sequential workloads like surveillance video writes or database log shipping, that extra headroom is real capacity, not marketing headroom.
• 600GB SFF Density: In a 24-bay SFF chassis, 24 of these drives gives you 14.4TB raw — enough for a meaningful RAID-6 pool with hot spare, while keeping per-spindle rebuild times well under the multi-day exposure you'd face with 1.2TB+ SAS drives.
• Hot-Swap Basic Carrier: BC format means no electronics on the tray to fail independently of the drive, and the hot-swap mechanism means a field tech can pull and replace a degraded drive in a live array without scheduling a maintenance window — important in 24/7 recording or production environments.

Deployment Considerations:

• Confirm the target ProLiant server's backplane is SAS 3 (not SAS 2) before ordering if maximizing throughput is the goal — SAS 3 drives in SAS 2 backplanes operate at SAS 2 speeds (6Gb/s), not 12Gb/s.
• BC carrier format is not interchangeable with SC (Smart Carrier) trays in the same server; mixing carrier types in a single backplane is unsupported and can cause LED fault identification to fail silently.

This drive is the right fit for HPE ProLiant environments running mixed-workload virtualization, surveillance NVR back-end storage, or database transaction logs — anywhere you need sub-millisecond random I/O consistency at a density that all-flash cannot yet match on a CapEx-constrained BOM.