Definition

What it is

Aliyun POSIX cache over OSS for AI training — admission of object storage limitations

Recent developments

Latest signals

ACK 2026 release notes. CPFS for AI dynamic volumes — automates on-demand storage eliminating manual PV management. On-demand pre-filling of OSS data to high-performance volumes (CPFS for AI or cloud disks) for AI training tasks. Per www.alibabacloud.com.
[Notice] Price adjustment for AI compute and storage services. Official notice: AI compute services and CPFS for Lingjun price adjustment effective April 18, 2026. Existing billing cycles unaffected; new pricing applies at next renewal. Per www.alibabacloud.com (2026-04-18).
Object Storage Service: Release notes for OSS features. March 2026: OSS MCP Server released — Model Context Protocol server implementation providing AI applications with Alibaba Cloud OSS integration. Per www.alibabacloud.com (2026-03-12).
csi-plugin. v1.35.1: OSS data prefill via VolumePopulator — preload OSS data into CPFS for Lingjun or cloud disk volumes before app startup. ossfs 2.0 upgraded to v2.0.5.ack.1 with monitoring enabled by default. Per www.alibabacloud.com (2026-01-19).
Why CPFS Is the Unsung Hero of the AI Revolution. Alibaba Cloud CPFS storage prices jumped 30% in April 2026 due to surging AI demand. Parallel file storage has become critical infrastructure for GPU-intensive AI training workloads. Per www.alibabacloud.com (2026-01-08).

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