> ## Documentation Index > Fetch the complete documentation index at: https://docs.xpander.ai/llms.txt > Use this file to discover all available pages before exploring further. # Sizing & Resource Requirements > CPU, memory, and storage requirements for self-hosted xpander deployments, with a calculator to size your cluster This page tells you how much compute a self-hosted xpander deployment needs. The recommendations are derived from measured usage of the same services running in xpander cloud production, plus the Helm chart's configured requests and limits. xpander container images are **amd64 only**. Do not use ARM/Graviton instances (`t4g`, `m7g`, `c7g`, etc.). *** ## Example Estimates Agents are autonomous - tasks are triggered from many sources, not only a user chatting. In xpander cloud production over the last 30 days, \~47% of executions were scheduled tasks, 23% webhooks, 19% SDK, 6% API, and only \~5% interactive chat. Size for the number of tasks running **concurrently at peak**, whatever triggers them. | Concurrent tasks | Agents | Cluster capacity | Example nodes | Persistent storage | | ---------------- | ------ | ----------------- | --------------------------------------------------- | ------------------ | | 3 | 10 | 10 vCPU / 19 GiB | 3 × `m5.xlarge` (or 2 × `t3.xlarge` for evaluation) | \~110 GiB | | 10 | 25 | 19 vCPU / 34 GiB | 3 × `m5.2xlarge` | \~180 GiB | | 20 | 50 | 29 vCPU / 49 GiB | 4 × `m5.2xlarge` | \~310 GiB | | 50 | 100 | 66 vCPU / 105 GiB | 9 × `m5.2xlarge`, enable autoscaling | \~570 GiB | Capacity figures include \~50% headroom over pod resource requests for burst load, Kubernetes system pods, and node upgrades. Use the calculator below to size for your exact numbers. *** ## Sizing Calculator Estimate cluster resources from your expected usage. The formula behind it is described in [How the estimate works](#how-the-estimate-works).