> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vortexiq.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Operations per Second (read + write, live), Apache Cassandra KPI card, Vortex IQ Nerve Centre

> ClientRequest Read + Write count delta from system_views / org.apache.cassandra.metrics MBeans.

**[Nerve Centre KPIs](/nerve-centre/kpi-cards/cassandra) · [Audit Profile](/nerve-centre/kpi-cards/cassandra/audit) · [Sentiment Settings](/nerve-centre/kpi-cards/cassandra/sentiment)**

## At a glance

* **Category:** Executive Overview
* **Type:** Key Metrics
* **Chart:** kpi
* **Format:** number
* **Time window:** RT

## Calculation

ClientRequest Read + Write count delta from system\_views / org.apache.cassandra.metrics MBeans.

## Known limitations

*Known limitations, FAQs, or reconciliation notes specific to this card. Replace this block when authored.*