HP part number 461137-B21 identifies the 461137-B21 HP 1TB 7200RPM SAS 3Gb/s Dual Port 3.5-inch Hard Drive, an enterprise-grade Server Hard Drive unit appropriate for data-center, server-room, and workstation deployment. Technical specifications include capacity of 1 TB, spindle speed of 7,200 RPM, form factor of 3.5-inch, interface of SAS, data rate of 3 Gb/s. Typical workloads include VMware ESXi datastores, Veeam / Rubrik / Cohesity backup repositories, RDBMS data files (SQL Server, PostgreSQL, Oracle), and log-tier storage for Splunk and Elastic. Pro Disk Network maintains the 461137-B21 in our enterprise inventory and verifies each unit against manufacturer datasheet specifications prior to listing. New stock ships factory-sealed where available; refurbished units are tested under load before dispatch and ship with a 90-day Pro Disk Network functional warranty. Same-day dispatch on in-stock orders placed before 3pm ET; free standard ground shipping on US orders over $150.
The 461137-B21 is a HP server hard drive component with capacity 1 TB, spindle speed 7,200 RPM, form factor 3.5-inch. Pro Disk Network sells the 461137-B21 for $105.60 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 461137-B21 are shown on this page.
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Quick Answer: Will the 461137-B21 work with my RAID controller?
The 461137-B21 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 461137-B21 ship?
Pro Disk Network dispatches the 461137-B21 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 461137-B21 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 461137-B21?
The 461137-B21 is a HP enterprise-grade hard drive with capacity 1 TB 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 461137-B21
Pros
Free 30-day return window covers DOA + fit issues
Cons
Not enterprise NVMe — sub-100 µs latency workloads need a different SKU
Bulk capacity is the value play, not raw IOPS
Larger orders may ship via LTL freight (signature required)
Frequently Asked Questions about 461137-B21
Is the 461137-B21 a genuine HP part?
Yes. Pro Disk Network sources every 461137-B21 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 461137-B21 work with my RAID controller?
The 461137-B21 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 461137-B21 ship?
Pro Disk Network dispatches the 461137-B21 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 461137-B21?
New 461137-B21 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 461137-B21?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the 461137 series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
461137-B21-RF — 461137-B21-RF - HP 1TB 7200RPM SAS 3Gb/s Hot-Swappable 3.5-inch Dual Port Hard Drive — $184.31
461137-S21 — 461137-S21 - HP 1TB 7200RPM SAS 3Gb/s 3.5-inch Hard Drive — $105.60
Pro Disk Network Buyer’s Guide: Server Hard Drive
How to Pick the Right Drive Capacity for Your Use Case
If the 461137-B21 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 461137-B21 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.