This article reviews a real PACS storage expansion project at a tertiary hospital, detailing the deployment of industrial wide-temperature SSDs in a tiered architecture combining distributed object storage and Blu-ray archiving. The SSDs serve as the hot-data acceleration layer, with -40~85°C wide-temperature adaptability, industrial-grade NAND, and power-loss protection. Together with multi-replica disaster recovery and low-cost Blu-ray long-term preservation, this three-tier system cuts image retrieval time from minutes to under 5 seconds, reduces total storage cost by 42%, and achieves 99.9999% data reliability. For medical institutions adding over 500TB annually, this approach balances performance, cost, and compliance.

Case Background

Although the hospital data center is not an outdoor extreme environment, localized heat from densely deployed storage nodes, 7x24 continuous operation consuming media lifespan, and the rigid requirement that medical data must never be lost all point to industrial-grade storage media. During solution design, the project team specified: the hot data tier uses medical imaging archive industrial wide-temperature SSDs to build an all-flash acceleration pool, the warm data tier is carried by distributed object storage, and the cold data tier connects to Blu-ray archive. This tiering approach addresses retrieval speed pain points and reserves space for linear capacity expansion. In terms of media parameters, industrial wide-temperature SSDs support -40~85C operating temperature (some models 0~70C), use

Implementation Details

In the cold data archive stage, the Blu-ray library and distributed object storage are policy-linked to automatically migrate data based on access frequency. Hot data stays in the medical imaging archive industrial wide-temperature SSD acceleration pool, warm data lands on the SSD tier, and cold data is archived to Blu-ray media. This tiering strategy effectively controls overall storage cost while ensuring low latency for hot services. During acceptance testing, the hospital IT department conducted multiple rounds of stress testing on the imaging retrieval path, confirming stable system response under concurrent retrieval scenarios. For media selection, the hot data pool uses PCIe Gen3x4 industrial wide-temperature SSDs with sequential read up to 2600 MB/s, sequential write up to 1870 MB/s, capacities from 120GB to 960GB, TBW up to 1536 TB, suitable for edge servers and imaging

Technical Highlights

For Xinchuang (domestic technology) adaptation, the solution is compatible with Kunpeng/Phytium/Hygon domestic CPUs and Kylin/UnionTech operating systems, meeting Xinchuang compliance and supply chain security requirements for government and healthcare industries. Medical imaging archive industrial wide-temperature SSDs serve as the storage media layer, forming a complete domestic storage stack together with upper-layer distributed object storage and Blu-ray archive. This stack-level adaptation capability eliminates compatibility concerns during future expansion or replacement, shortening project preparation time by over 30%. On the performance side, the distributed architecture supports elastic scaling of nodes with capacity and performance demands, scaling from hundreds of TB to PB-level without downtime, with performance growing nearly linearly

Results and Insights

For medical institutions planning PACS storage expansion, the key insight from this case is: storage cost optimization should not come at the expense of retrieval speed, but should rebalance performance and cost through hot-cold tiering. Medical imaging archive industrial wide-temperature SSDs, as the core media of the hot data acceleration layer, complement distributed object storage's elastic scaling and Blu-ray archive's low-cost long-term preservation through their wide-temperature adaptability and long lifespan. Stonbel's distributed object storage, hot data all-flash acceleration, and cold data Blu-ray archive solution covers the full process from media selection to system integration, providing a reusable reference path for healthcare storage upgrades. In terms of data

Q1: What is the difference between medical imaging archive industrial wide-temperature SSDs and consumer SSDs in a PACS system?

A: The core differences are temperature range, NAND grade, and power-loss protection. Medical imaging archive industrial wide-temperature SSDs support -40~85C operating temperature (some models 0~70C), use SLC/MLC/TLC industrial-grade NAND, and feature power-loss protection and wear leveling algorithms; consumer SSDs only support 0~70C without power-loss protection. In a 7x24 PACS environment, industrial media achieve MTBF of over 2,000,000 hours and 3000 P/E cycles, preventing drive drops or data corruption at extreme temperatures with lower total cost of ownership. Additionally, industrial SSDs support end-to-end data protection, ensuring imaging data integrity during power loss or abnormal shutdown, while consumer SSDs risk data loss in the

Q2: How capable is the disaster recovery of medical imaging archive industrial wide-temperature SSDs?

A: Disaster recovery is achieved through media layer and system layer coordination. At the media layer, medical imaging archive industrial wide-temperature SSDs support end-to-end data protection, operating temperatures of -40~85C, and MTBF exceeding 3 million hours (some SATA models). At the system layer, distributed storage supports 2-replica/3-replica and EC erasure coding, ensuring no data loss and no service interruption during single disk, node, or even rack-level failures, with data reliability of 99.9999%. The intelligent O&M module predicts failures in advance through SMART, IO latency, temperature and other metrics and automatically migrates data, reducing unplanned downtime by over 80%. In a tertiary hospital PACS imaging storage expansion project, the solution configured data encryption and access auditing, passed Level 3 classified protection and medical data security

Q3: How to choose interface and capacity for medical imaging archive industrial wide-temperature SSDs?

A: Choose based on retrieval frequency and node type. For high-frequency hot data pools, PCIe Gen3x4 interface is recommended, with sequential read up to 2600 MB/s, sequential write up to 1870 MB/s, capacities from 120GB to 960GB, TBW up to 1536 TB, suitable for edge servers and imaging preprocessing nodes. For standard storage nodes or industrial PCs, SATA III interface can be used, with sequential read 560 MB/s, sequential write 525 MB/s, capacities from 32GB to 1TB, TBW up to 2792 TB, 3000 P/E cycles. Wide-temperature versions operate at -40~85C, suitable for deployment environments with high heat risk. For scenarios requiring higher capacity or performance, SATA III up to 4TB or PCIe industrial wide-temperature models are available, operating

The project demonstrates that industrial wide-temperature SSDs in the hot-data layer do more than boost read/write speed. Their -40~85°C range, industrial-grade NAND, and power-loss protection, combined with distributed object storage and Blu-ray archiving, form a three-tier system that reduces retrieval time to under 5 seconds, cuts storage cost by 42%, and reaches 99.9999% reliability. For institutions adding over 500TB yearly, this path balances performance, cost, and compliance. Under domestic compliance and 24/7 high-reliability requirements, SSD selection and tiered storage design will be key to PACS upgrades.