ST300MX0042 Seagate Enterprise Performance 15K 0.3TB SAS 128 MB 2.5" Server HDD

High-Performance 2.5in SAS Enterprise HDD featuring 15K RPM latency optimization with the ST300MX0042

The ST300MX0042 is a 2.5in enterprise HDD engineered for Tier-1 transactional workloads where predictable latency, sustained IOPS, and continuous duty cycles matter more than raw capacity. Integrated into modern server and storage platforms via SAS backplanes, the ST300MX0042 aligns with dual-controller RAID and SAN/JBOD architectures that require deterministic behavior under mixed read/write pressure and frequent metadata updates.

Using CMR recording and a 4Kn sector format, the ST300MX0042 supports efficient block handling for contemporary operating systems and enterprise filesystems while reducing translation overhead commonly associated with legacy sector emulation. Its 15K spindle design and on-drive cache are optimized for short-queue, small-block access patterns typical of logs and database indexes, while the SAS interface enables multi-pathing, expander topologies, and hot-swap serviceability in dense 2.5in drive bays.

Why Choose the ST300MX0042?

The ST300MX0042 delivers a pragmatic density-to-performance profile for environments that standardize on SAS and require consistent response times across shared storage pools. The ST300MX0042 is designed for enterprise reliability targets and scales cleanly from a few drives in a server RAID set to large, multi-shelf deployments, supporting operational continuity through hot-swap maintenance and predictable fleet behavior in 24/7 data centre operations.

Seagate’s enterprise engineering focuses on sustained performance under vibration, controlled thermals, and long-life service models expected in rack-scale deployments. With the ST300MX0042, Seagate also addresses compliance-driven security expectations by enabling TCG Enterprise self-encrypting drive capabilities for data-at-rest protection without relying on host-based encryption overhead.

Key Applications:

• Tier-1 transactional databases
• Database and application logs
• Enterprise RAID arrays
• SAN and JBOD hot-swap drive bays
• Compliance-driven encrypted storage tiers

At Happyware - Server Hardware you benefit from non-binding offers tailored to your storage architecture and rollout scope, enabling efficient procurement planning for ST300MX0042 deployments. For sustained platform standardization, you can also secure bulk order discount options when equipping larger RAID and SAN/JBOD populations with ST300MX0042 drives.