ST9500430SS Seagate Constellation 7200.1 0.5TB SAS 16 MB 2.5" Consumer HDD

Enterprise 2.5in SAS HDD for secure hot-swap bays and RAID arrays with the ST9500430SS

The ST9500430SS is a 2.5in enterprise SAS hard disk designed for server and storage platforms that standardise on SAS backplanes, expander-based JBODs, and RAID controllers. In mixed CPU environments—from legacy x86 virtualization hosts to general-purpose compute nodes—the ST9500430SS provides predictable block storage behaviour suited to OS volumes, logs, and capacity tiers where consistent latency and operational stability are prioritized over flash-level IOPS.

Architecturally, the ST9500430SS aligns with 6Gb/s SAS ecosystems by supporting enterprise hot-swap serviceability and multi-drive aggregation behind RAID. Its 7200 RPM CMR recording model is optimized for sustained write consistency, helping reduce rebuild variability and maintain array integrity under long sequential workloads. The integrated SED capability enables controller- or policy-driven at-rest encryption workflows without redesigning the storage stack, while PowerChoice power management supports tighter power envelopes for dense chassis and scale-out bays.

Why Choose the ST9500430SS?

The ST9500430SS offers a balanced density-to-thermal profile for 2.5in server trays, delivering secure capacity that integrates cleanly into existing SAS operational models. For IT teams maintaining legacy SAS fleets or extending the service life of deployed backplanes, the ST9500430SS provides a straightforward path to consistent RAID behaviour, simplified compliance alignment via SED, and predictable scalability across multi-bay configurations.

Seagate designs enterprise HDD platforms with an engineering focus on reliability under continuous duty cycles, controlled power characteristics, and compatibility with common data centre service practices such as hot-swap replacement and RAID-based availability. This approach supports standardized maintenance processes across server and storage estates.

Key Applications:

• RAID arrays in rack servers
• Hot-swap SAS drive bays
• JBOD expansion shelves
• Boot and data volumes for servers
• Legacy 2.5in SAS backplanes

At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your needs for ST9500430SS deployment planning, and an extended warranty up to 6 years to secure long-term operation in enterprise service cycles.