https://community.netapp.com/t5/Active-IQ-Unified-Manager-Discussions/Harvest-Grafana-cabon-cache-py-generates-high-rate-of-Read-IOPS-on-the-storage/m-p/115879#M20610 <P>Hello,</P><P>&nbsp;</P><P>&nbsp;&nbsp;&nbsp; We use NetApp volume as underlying storage for Harvest+Grafana setup. I recently noticed that that volume constantly runs at ~3K Read IOPS and ~350 Write IOPS.</P><P>&nbsp;&nbsp;&nbsp; The process generating all these IOPS seems to be carbon-cache.py (iotop seems to confirm that - it shows much more reads than writes for that process).</P><P>&nbsp;&nbsp;&nbsp; Is this normal/expected for carbon-cache to generate such high ammount of read IO?</P><P>&nbsp;</P><P>Thanks,</P><P>Paul Ogranovich.</P> Wed, 04 Jun 2025 22:02:40 GMT pogranovich 2025-06-04T22:02:40Z https://community.netapp.com/t5/Active-IQ-Unified-Manager-Discussions/Harvest-Grafana-cabon-cache-py-generates-high-rate-of-Read-IOPS-on-the-storage/m-p/115879#M20610 <P>Hello,</P><P>&nbsp;</P><P>&nbsp;&nbsp;&nbsp; We use NetApp volume as underlying storage for Harvest+Grafana setup. I recently noticed that that volume constantly runs at ~3K Read IOPS and ~350 Write IOPS.</P><P>&nbsp;&nbsp;&nbsp; The process generating all these IOPS seems to be carbon-cache.py (iotop seems to confirm that - it shows much more reads than writes for that process).</P><P>&nbsp;&nbsp;&nbsp; Is this normal/expected for carbon-cache to generate such high ammount of read IO?</P><P>&nbsp;</P><P>Thanks,</P><P>Paul Ogranovich.</P> Wed, 04 Jun 2025 22:02:40 GMT https://community.netapp.com/t5/Active-IQ-Unified-Manager-Discussions/Harvest-Grafana-cabon-cache-py-generates-high-rate-of-Read-IOPS-on-the-storage/m-p/115879#M20610 pogranovich 2025-06-04T22:02:40Z