azure-site-recovery

What this skill does

# Azure Site Recovery Skill

This skill provides expert guidance for Azure Site Recovery. Covers troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. It combines local quick-reference content with remote documentation fetching capabilities.

## How to Use This Skill

> **IMPORTANT for Agent**: Use the **Category Index** below to locate relevant sections. For categories with line ranges (e.g., `L35-L120`), use `read_file` with the specified lines. For categories with file links (e.g., `[security.md](security.md)`), use `read_file` on the linked reference file

> **IMPORTANT for Agent**: If `metadata.generated_at` is more than 3 months old, suggest the user pull the latest version from the repository. If `mcp_microsoftdocs` tools are not available, suggest the user install it: [Installation Guide](https://github.com/MicrosoftDocs/mcp/blob/main/README.md)

This skill requires **network access** to fetch documentation content:
- **Preferred**: Use `mcp_microsoftdocs:microsoft_docs_fetch` with query string `from=learn-agent-skill`. Returns Markdown.
- **Fallback**: Use `fetch_webpage` with query string `from=learn-agent-skill&accept=text/markdown`. Returns Markdown.

## Category Index

| Category | Lines | Description |
|----------|-------|-------------|
| Troubleshooting | L37-L64 | Diagnosing and fixing Azure Site Recovery replication, failover, agent/extension, network, and appliance issues for Azure VMs, Hyper-V, VMware, and physical servers. |
| Best Practices | L65-L70 | Guidance on tuning Azure Site Recovery performance: analyzing high data churn on VMs, and monitoring/troubleshooting process server health, capacity, and throughput. |
| Decision Making | L71-L88 | Planning and sizing Azure Site Recovery: choosing tools vs Azure Migrate, VMware/Hyper-V DR capacity and cost estimation, managed disk pricing, failover/failback options, and classic-to-modern migration. |
| Architecture & Design Patterns | L89-L98 | Designing Azure Site Recovery architectures for specific workloads (AD/DNS, SAP, Dynamics AX, SharePoint, IIS, SQL, VMware, file servers) and multi-tier app DR patterns. |
| Limits & Quotas | L99-L109 | Site Recovery scale, capacity, and support limits: VM/Hyper‑V/VMware matrices, high‑churn limits, shared disks, Mobility service usage, planner limits, and safe use with Azure Backup. |
| Security | L110-L120 | Securing Azure Site Recovery: NSGs, TLS, encryption changes, RBAC, managed identities, and hardening replication appliances/VMware replication traffic. |
| Configuration | L121-L179 | Configuring Azure Site Recovery for Azure VMs, VMware, Hyper-V, and physical servers, including networking, encryption, policies, appliances, monitoring, and replication/failback setup. |
| Integrations & Coding Patterns | L180-L193 | Automating and integrating Azure Site Recovery with scripts and infrastructure tools (PowerShell, ARM/Bicep, Terraform) plus networking/traffic (ExpressRoute, Traffic Manager) and Hyper-V/VMware DR planning. |
| Deployment | L194-L201 | Support and compatibility details for Azure Site Recovery deployments: DR support matrices for VMware/Hyper-V/replication appliances/shared disks and guidance on migrating from classic to modern VMware DR. |

### Troubleshooting
| Topic | URL |
|-------|-----|
| Resolve common Azure-to-Azure Site Recovery issues | https://learn.microsoft.com/en-us/azure/site-recovery/azure-to-azure-common-questions |
| Resolve protection errors in Azure-to-Azure VM replication | https://learn.microsoft.com/en-us/azure/site-recovery/azure-to-azure-protection-errors |
| Troubleshoot other Azure Site Recovery replication issues | https://learn.microsoft.com/en-us/azure/site-recovery/azure-to-azure-troubleshoot-errors |
| Diagnose network connectivity issues for Azure-to-Azure Site Recovery | https://learn.microsoft.com/en-us/azure/site-recovery/azure-to-azure-troubleshoot-network-connectivity |
| Troubleshoot common Azure VM replication problems in Site Recovery | https://learn.microsoft.com/en-us/azure/site-recovery/azure-to-azure-troubleshoot-replication |
| Fix VM-level errors in Azure Site Recovery replication | https://learn.microsoft.com/en-us/azure/site-recovery/azure-to-azure-virtual-machine-errors |
| Resolve common Hyper-V to Azure Site Recovery issues | https://learn.microsoft.com/en-us/azure/site-recovery/hyper-v-azure-common-questions |
| Resolve Hyper-V to Azure replication issues in Site Recovery | https://learn.microsoft.com/en-us/azure/site-recovery/hyper-v-azure-troubleshoot |
| Troubleshoot and configure Azure Site Recovery monitoring | https://learn.microsoft.com/en-us/azure/site-recovery/monitoring-common-questions |
| Fix Azure Site Recovery VM agent and extension issues | https://learn.microsoft.com/en-us/azure/site-recovery/site-recovery-extension-troubleshoot |
| Troubleshoot failover to Azure errors in Site Recovery | https://learn.microsoft.com/en-us/azure/site-recovery/site-recovery-failover-to-azure-troubleshoot |
| Use Site Recovery dashboard and alerts to diagnose replication issues | https://learn.microsoft.com/en-us/azure/site-recovery/site-recovery-monitor-and-troubleshoot |
| Run VMM cleanup script to unregister disconnected Site Recovery servers | https://learn.microsoft.com/en-us/azure/site-recovery/unregister-vmm-server-script |
| Resolve common VMware to Azure Site Recovery issues | https://learn.microsoft.com/en-us/azure/site-recovery/vmware-azure-common-questions |
| Troubleshoot Azure Site Recovery configuration server deployment issues | https://learn.microsoft.com/en-us/azure/site-recovery/vmware-azure-troubleshoot-configuration-server |
| Troubleshoot VMware failback and reprotection with Site Recovery | https://learn.microsoft.com/en-us/azure/site-recovery/vmware-azure-troubleshoot-failback-reprotect |
| Troubleshoot Mobility Service push installation failures | https://learn.microsoft.com/en-us/azure/site-recovery/vmware-azure-troubleshoot-push-install |
| Resolve replication issues for VMware and physical servers to Azure | https://learn.microsoft.com/en-us/azure/site-recovery/vmware-azure-troubleshoot-replication |
| Fix Azure Site Recovery error 78144 for missing app-consistent points | https://learn.microsoft.com/en-us/azure/site-recovery/vmware-azure-troubleshoot-replication-vss-installation-failure-behaviors |
| Troubleshoot Azure Site Recovery Provider upgrade failures | https://learn.microsoft.com/en-us/azure/site-recovery/vmware-azure-troubleshoot-upgrade-failures |
| Diagnose VMware vCenter discovery failures in Azure Site Recovery | https://learn.microsoft.com/en-us/azure/site-recovery/vmware-azure-troubleshoot-vcenter-discovery-failures |
| Troubleshoot Azure Site Recovery process server issues | https://learn.microsoft.com/en-us/azure/site-recovery/vmware-physical-azure-troubleshoot-process-server |
| Troubleshoot VMware replication appliance health in Site Recovery | https://learn.microsoft.com/en-us/azure/site-recovery/vmware-troubleshoot-appliance-health-issue |
| Resolve VMware mobility agent health errors in Azure Site Recovery | https://learn.microsoft.com/en-us/azure/site-recovery/vmware-troubleshoot-mobility-agent-health |

### Best Practices
| Topic | URL |
|-------|-----|
| Analyze and mitigate high churn patterns on Site Recovery VMs | https://learn.microsoft.com/en-us/azure/site-recovery/monitoring-high-churn |
| Monitor Azure Site Recovery process server health and performance | https://learn.microsoft.com/en-us/azure/site-recovery/vmware-physical-azure-monitor-process-server |

### Decision Making
| Topic | URL |
|-------|-----|
| Use alternative VM size recommendations during failover | https://learn.microsoft.com/en-us/azure/site-recovery/alternative-vm-size-failover-flow |
| Plan migration from classic to modernized VMware DR | https://learn.microsoft.com/en-us/azure/site-recovery/classic-to-modernized-common-questions