Sourced for enterprise IT teams, the HP D4956-63001 (D4956-63001 - HP 4.2GB 7200RPM 3.5-inch SCSI II Hard Drive for HP Storage System 6) is a Server Hard Drive component appropriate for new-build, expansion, or warranty-replacement procurement. Technical specifications include capacity of 4.2 GB, spindle speed of 7,200 RPM, form factor of 3.5-inch, interface of SCSI. Appropriate for OS boot tier (Windows Server, RHEL, Ubuntu Server, ESXi), application data tier, database log volumes, and tier-2 capacity in mixed-storage clusters. Pro Disk Network supplies the D4956-63001 to US business buyers. Listed compatibility: HP Storage System. Cross-verify against the OEM compatibility matrix before deployment for production workloads. Stocked units ship same-day on in-stock orders placed before 3pm ET. Pro Disk Network applies a 90-day functional warranty. Free US ground shipping on orders over $150; same-day expedited (UPS Next Day Air, FedEx Priority) available at checkout.
The D4956-63001 is a HP server hard drive component with capacity 4.2 GB, spindle speed 7,200 RPM, form factor 3.5-inch. Pro Disk Network sells the D4956-63001 for $336.17 with same-day US shipping and a 30-day return guarantee.
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Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the D4956-63001 are shown on this page.
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Quick Answer: Will the D4956-63001 work with my RAID controller?
The D4956-63001 operates with any standard SAS/SATA/NVMe-compatible RAID controller (Dell PERC, HPE Smart Array, LSI/Broadcom MegaRAID, Adaptec, IBM ServeRAID, Lenovo ThinkSystem RAID). Mixing this drive in the same RAID volume with drives of different speed/capacity is supported but never recommended.
How fast does the D4956-63001 ship?
Pro Disk Network dispatches the D4956-63001 same-day on orders confirmed before 3 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
The D4956-63001 is deployed by US enterprises, MSPs, government, and education customers across multiple infrastructure scenarios. Below are the most common deployment patterns Pro Disk Network sees in real-world orders.
Splunk Warm/Cold Tier — Appropriate for Splunk warm/cold/frozen indexes where ingest write rates are below 200 MB/s per node. Avoid for hot-tier indexes — use NVMe instead.
File Server / SMB Shares — General-purpose Windows Server / Samba shares for departmental file storage. RAID 5 for capacity, RAID 10 for IOPS-sensitive workloads.
Object Storage (Ceph / MinIO) — JBOD presentation behind Ceph OSDs or MinIO erasure-coded pools. Mix with NVMe metadata drives for production object stores.
What is the D4956-63001?
The D4956-63001 is a HP enterprise-grade hard drive with capacity 4.2 GB and spindle speed 7,200 RPM, manufactured by HP. Pro Disk Network ships this part new and certified-refurbished from our US warehouse with same-day dispatch on orders placed before 3 PM ET, backed by a 30-day return guarantee.
Pros & Cons of D4956-63001
Pros
Same-day US shipping from our US warehouse
Cons
Not recommended for OLTP databases above 50 TPS
Mechanical drive — expect 5–10W idle power per unit
3.5" form factor only — confirm caddy fit before ordering
Frequently Asked Questions about D4956-63001
Is the D4956-63001 a genuine HP part?
Yes. Pro Disk Network sources every D4956-63001 as factory-original HP inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned HP servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Will the D4956-63001 work with my RAID controller?
The D4956-63001 operates with any standard SAS/SATA/NVMe-compatible RAID controller (Dell PERC, HPE Smart Array, LSI/Broadcom MegaRAID, Adaptec, IBM ServeRAID, Lenovo ThinkSystem RAID). Mixing this drive in the same RAID volume with drives of different speed/capacity is supported but never recommended.
How fast does the D4956-63001 ship?
Pro Disk Network dispatches the D4956-63001 same-day on orders confirmed before 3 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
What is the warranty on the D4956-63001?
New D4956-63001 units carry the full HP manufacturer warranty (typically 1 to 5 years depending on product line). Refurbished and bulk-OEM units include a Pro Disk Network advance-replacement warranty (90 days refurbished). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the D4956-63001?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the D4956 series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
D4956-60001R — D4956-60001R - HP 4.2GB 7200RPM 3.5-inch 50-Pin SCSI II Hard Drive for HP Storage System 6 — $829.71
D4956-69001 — D4956-69001 - HP 4.3GB 7200RPM Fast Wide SCSI Single Ended Narrow 50-Pin 3.5-inch Hard Drive with Tray — $356.54
D4956A — D4956A - HP 4.2GB 7200RPM 50-Pin SCSI 3.5-inch Hard Drive for Storage System — $346.36
D4956AU — D4956AU - HP 4.2GB 7200RPM 3.5-inch 50-Pin SCSI II Hard Drive for HP Storage System 6 — $120.13
Pro Disk Network Buyer’s Guide: Server Hard Drive
How to Pick the Right Drive Capacity for Your Use Case
If the D4956-63001 is going into a RAID array, choose RAID 6 over RAID 5 for any capacity tier built from drives larger than 4 TB. The probability of a second drive failing during rebuild from a 6+ TB rebuild window is high enough that single-parity is no longer responsible. For all-flash arrays, RAID 10 still wins on write-amplification-sensitive workloads (OLTP databases, VDI write-cache).
Drive Health Monitoring: SMART, Workload Rating, and Predictive Failure
Once the D4956-63001 is in production, the single most impactful operational practice is SMART monitoring tied to your existing alerting stack. SMART attributes 187 (reported uncorrectable errors), 197 (current pending sector count), and 198 (offline uncorrectable sector count) are the leading indicators of impending drive failure. Alert on non-zero values, not just on absolute thresholds; once these attributes leave zero, the drive has typically 30-90 days of useful life remaining.