Interactive study deck built from the V1.0 Training Material (authoritative for this exam) plus supplementary cards from the V3.0 material clearly tagged with a yellow marker. Click a card to flip. Rate yourself to track mastery. Progress saves to this browser.
Scope note: Cards labelled V1 come from the H25-621 V1.0 training material and are authoritative for this exam. Cards labelled V3 are supplementary — use them for broader context but trust V1 wording if the two ever conflict on the same topic.
Coverage: OceanStor Dorado (overview, hardware, software, SmartMatrix) · Smart Series · Hyper Series · Reliability (5-layer model, RAID-TP, metrics) · OceanStor Pacific · OceanProtect Backup · DCS Full-Stack · Ransomware Protection · V3 supplements: New-Gen Hybrid Flash, DMS, POC methodology.