Large IO write size resulted in poor write latency in CVO
Applies to
- Cloud Volume ONTAP 9.x
- Microsoft Azure
Issue
- High Write latency observed in AIQUM tool / QOS statistics.
- Latency breakdown indicates latency is driven from the Data layer.
- Extremely high write latency (above 500ms) for larger block size >100KB.
- For smaller block size <20KB write latency is <1ms