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Dec 14, 2016 · Databases

Why Do Seagate SAS Disks Slow Down on Exadata When Temperature Drops Below 20°C?

A detailed case study examines an Exadata X3‑2 deployment where CALIBRATE tests revealed intermittent disk performance drops linked to low temperatures on Seagate SAS drives, explains why moving disks between nodes can restore performance, and clarifies the normalcy of slight MB/s variations in slots 0 and 1.