ST3450857SS Seagate Cheetah 15K.7 0.45TB SAS 16 MB 3.5" Server HDD

High-Performance 3.5in Enterprise SAS HDD featuring 15K RPM low-latency I/O with the ST3450857SS

The ST3450857SS is a 3.5in enterprise internal HDD designed for servers and storage shelves that rely on SAS backplanes for deterministic block access and consistent queue handling. As a 15,000 RPM drive, the ST3450857SS targets high-IOPS transactional patterns where seek latency and rotational delay dominate, making it well suited for Tier-1 legacy HDD pools, database log volumes, and performance-sensitive OS/boot configurations.

In PCIe-centric platforms, the ST3450857SS remains relevant as a SAS-attached building block behind RAID controllers or SAS HBAs, enabling predictable expansion across dense drive bays without consuming CPU lanes reserved for NICs and accelerators. Its CMR recording maintains write consistency under sustained workloads, while the 450GB capacity profile supports granular volume design for RAID sets, hot spares, and mirrored boot devices in mixed workload infrastructure servers.

Why Choose the ST3450857SS?

The ST3450857SS delivers a pragmatic density-to-performance balance for environments standardised on 3.5in SAS media, offering repeatable latency characteristics and operational stability for always-on duty cycles. The ST3450857SS integrates cleanly into existing SAS service models, simplifying scaling through additional bays and maintaining predictable rebuild and failover behaviour under RAID policies.

Seagate engineers the Cheetah family for enterprise reliability with disciplined mechanical design, sustained rotational operation, and firmware tuned for multi-drive enclosures. This approach aligns with data centre expectations for controlled acoustics, thermal tolerance, and compatibility across common SAS storage and server platforms.

Key Applications:

• High-IOPS OLTP and transactional databases
• Boot and OS volumes for infrastructure servers
• Legacy Tier-1 HDD storage pools
• Mixed workload RAID arrays in SAS backplanes
• Workstation scratch storage with SAS support

At Happyware - Server Hardware you benefit from Bulk Order Discount options for standardised ST3450857SS rollouts and an Extended Warranty of up to 6 years to reduce lifecycle risk for long-lived SAS-based deployments.