Sourced for enterprise IT teams, the Western Digital AC22500 (AC22500 - Western Digital Caviar 22500 2.5GB 5400RPM ATA-33 256KB Cache 3.5-inch Hard Drive) is a Desktop Hard Drive component appropriate for new-build, expansion, or warranty-replacement procurement. Technical specifications include spindle speed of 5,400 RPM, form factor of 3.5-inch, cache of 256KB. 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 maintains the AC22500 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 AC22500 is a Western Digital desktop hard drive component with spindle speed 5,400 RPM, form factor 3.5-inch, cache 256KB. Pro Disk Network sells the AC22500 for $305.05 with same-day US shipping and a 30-day return guarantee.
Reviewed By
Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the AC22500 are shown on this page.
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30-Day Returns — pre-paid label on DOA and defective items
Quick Answer: Will the AC22500 work with my RAID controller?
The AC22500 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 AC22500 ship?
AC22500 orders placed before 3 pm ET ship the same business day from US warehouses. Delivery is next business day to most metro ZIPs via FedEx/UPS overnight; ground delivery covers remaining US in 1-4 business days.
The AC22500 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.
Veeam Backup Repository — Cost-optimised backup target for Veeam B&R, Rubrik, or Cohesity primary backup tier. RAID 6 over 8–24 drives delivers 100+ TB usable per server.
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 AC22500?
The AC22500 is a Western Digital enterprise-grade hard drive with spindle speed 5,400 RPM and form factor 3.5-inch, manufactured by Western Digital. 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 AC22500
Pros
Same-day US shipping from our US warehouse
Cons
Designed for capacity tier, not write-intensive cache
Not a drop-in for desktop NAS without verifying caddy
Some firmware revs locked to specific RAID-controller families
Frequently Asked Questions about AC22500
Is the AC22500 a genuine Western Digital part?
Yes. Pro Disk Network sources every AC22500 as factory-original Western Digital inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Western Digital servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Will the AC22500 work with my RAID controller?
The AC22500 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 AC22500 ship?
AC22500 orders placed before 3 pm ET ship the same business day from US warehouses. Delivery is next business day to most metro ZIPs via FedEx/UPS overnight; ground delivery covers remaining US in 1-4 business days.
What is the warranty on the AC22500?
New AC22500 units carry the full Western Digital 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 AC22500?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the AC2250 series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
AC22500-00LA — AC22500-00LA - Western Digital Caviar 22500 2.5GB 5400RPM ATA-33 256KB Cache 3.5-inch Hard Drive — $259.50
AC22500-00LB — AC22500-00LB - Western Digital Caviar 22500 2.5GB 5400RPM ATA-33 256KB Cache 3.5-inch Hard Drive — $192.08
AC22500-07LA — AC22500-07LA - Western Digital Caviar 22500 2.5GB 5400RPM ATA-33 256KB Cache 3.5-inch Hard Drive — $202.21
AC22500-23LA — AC22500-23LA - Western Digital Caviar 22500 2.5GB 5400RPM ATA-33 256KB Cache 3.5-inch Hard Drive — $417.54
AC22500-32LA — AC22500-32LA - Western Digital Caviar 22500 2.5GB 5400RPM ATA-33 256KB Cache 3.5-inch Hard Drive — $473.68
AC22500-60LA — AC22500-60LA - Western Digital Caviar 22500 2.5GB 5400RPM ATA-33 256KB Cache 3.5-inch Hard Drive — $357.09
AC22500-71LA — AC22500-71LA - Western Digital Caviar 22500 2.5GB 5400RPM ATA-33 256KB Cache 3.5-inch Hard Drive — $395.34
Pro Disk Network Buyer’s Guide: Desktop Hard Drive
How to Pick the Right Drive Capacity for Your Use Case
For VMware vSAN deployments, the AC22500 is best deployed in the capacity tier with NVMe cache drives in front. Size the cache layer at 10% of usable capacity for write-intensive workloads and 5% for read-leaning workloads. For Veeam backup repositories, plan around 1.5× the size of your protected estate to allow for incremental forever chains plus synthetic fulls. Splunk warm tier sizing should follow the daily ingest rate × retention days × 1.6 compression overhead.
Drive Health Monitoring: SMART, Workload Rating, and Predictive Failure
For VMware ESXi 8 hosts, enable vSphere's predictive-failure analysis on the AC22500 via the host's storage device list. The host queries SMART on a regular cadence and surfaces yellow/red warnings in vCenter before the drive fails outright. On Linux, use smartctl piped to your monitoring system; on Windows Server, Storage Spaces exposes health state directly in Server Manager.