HPE P49751-001 6.4TB SAS-24Gbps 2.5″ SSD

P49751-001 is the service-spare identity for HPE’s 6.4TB SAS 24G Mixed Use SFF Basic Carrier Multi Vendor SSD family, commercially sold as P49057-B21. Parts references map it to assembly P49341-001. This is a high-capacity enterprise flash family for supported HPE platforms using the newer 24G SAS and Basic Carrier architecture.

A Service Reference for 6.4TB Enterprise Flash

When maintenance information calls for P49751-001, the spare number identifies the intended capacity, interface generation, workload class and carrier family. That is more precise than sourcing another 6.4TB 2.5-inch SAS drive.

Key Family Characteristics

• Spare: P49751-001
• Option: P49057-B21
• Assembly: P49341-001
• Capacity: 6.4TB
• Interface: SAS 24Gb/s
• Workload: Mixed Use
• Carrier: Basic Carrier
• Endurance class: 3 DWPD

Why 24G SAS Matters

HPE states that the 24G SAS family can enable up to 24Gb maximum interface performance with appropriate backplanes. Actual application throughput also depends on controller, RAID design, queue depth and workload, so the interface rating should be treated as part of a complete storage path.

High Capacity per SFF Bay

6.4TB in one SFF bay can reduce the number of drives needed to reach a target raw capacity and leave bays available for future growth. RAID protection will reduce usable capacity, and service-spare planning becomes important because each drive represents a substantial portion of the array.

Endurance in Context

HPE specifies the P49057-B21 family at 3 drive writes per day and publishes a lifetime-write figure for the new product family. Those figures describe original endurance, not the remaining life of an individual Refurbished SSD.

Basic Carrier versus Smart Carrier

The P49746-001 1.6TB SAS 12G SSD uses Smart Carrier. P49751-001 uses Basic Carrier. This is a meaningful platform distinction, not a cosmetic change.

Assembly Cross-Reference

P49341-001 is the assembly identity. Keeping both numbers in the asset record makes future service easier when the label on the physical drive differs from the maintenance-guide reference.

New and Refurbished P49751-001

New stock can support compatible deployments, expansions and spare pools. Refurbished stock can support systems already using the same family, with health, condition and warranty particularly relevant for used flash.

Controllers and Related Storage

See the P58543-001 MR408i-o, P47952-001 MR416i-o, P49048-B21 1.6TB SAS option and P49327-001 assembly for related storage architecture references.

Use the Spare Number for Maintenance Purchasing

Euroland IT Store can help source the P49751-001 family in New or Refurbished condition where available.

Service-Spare Planning at 6.4TB

Because each drive contributes substantial capacity, holding an appropriate spare can be useful in arrays where replacement time matters. The right strategy depends on RAID protection, workload importance and the organisation’s maintenance model rather than capacity alone.

Why 6.4TB Changes Bay Planning

High-capacity flash can reduce the number of physical drives required to reach a storage target. In a dense SFF server, this can leave bays available for future growth or allow more capacity within the same chassis footprint. It also means that each drive represents a larger amount of data, so RAID protection, backup strategy and replacement readiness deserve careful planning. The best design balances capacity, performance, endurance and recovery requirements rather than maximising one figure.

24G SAS Needs the Right Platform

The drive family is capable of a newer SAS interface generation, but that benefit depends on a compatible storage path. A server with an older backplane or controller may not provide the same interface capability, and carrier design can differ between generations. This makes P49751-001 most useful when the complete platform has been identified and the service documentation confirms the 24G Basic Carrier family.

Multi Vendor Qualification and Service Consistency

The Multi Vendor designation means the HPE product specification can be fulfilled by qualified underlying drive models. For service teams, P49751-001 provides a consistent spare identity across that programme. This can make replacement planning easier than maintaining separate purchasing rules for every underlying media model, while organisations that require exact model matching can still record the model as an additional asset field.

For organisations operating several compatible Gen11 systems, standardising the spare identity can simplify inventory and reduce the number of emergency sourcing decisions. The final server configuration should still be checked because not every drive option is supported in every backplane arrangement.

P49751-001 FAQs

What is P49751-001?

The service spare for HPE’s 6.4TB SAS 24G Mixed Use SFF Basic Carrier Multi Vendor SSD family.

Which option is related?

P49057-B21.

Which assembly is related?

P49341-001.

What carrier is used?

Basic Carrier.

What is the workload class?

Mixed Use.

Is it the same family as the 1.6TB 12G Smart Carrier drive?

No.