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Update AccessAnalyzer disk requirements for scan queue sizing #1369

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mckibbenc merged 2 commits into from
Aug 12, 2026
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Update AccessAnalyzer disk requirements for scan queue sizing #1369

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Update AccessAnalyzer disk requirements for scan queue sizing
mckibbenc Aug 11, 2026
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fix(vale): auto-fix style issues (Vale + Dale)
github-actions[bot] Aug 11, 2026
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14 changes: 8 additions & 6 deletions docs/accessanalyzer/2601/install/system/requirements.md
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Expand Up @@ -10,14 +10,14 @@ Access Analyzer runs on a single Linux virtual machine. The installer runs prefl

## Deployment Sizing

The installer enforces absolute minimums via preflight checks — the installer blocks installation if the system falls below these thresholds. Use the **Production Recommended** specifications for customer-facing or enterprise deployments.
The installer enforces absolute minimums via preflight checks and blocks installation if the system falls below these thresholds. Use the **Production Recommended** specifications for customer-facing or enterprise deployments.

**Absolute installer minimums (enforced by preflight):** 6 vCPUs, 24 GB RAM, 20 GB free disk.
**Absolute installer minimums:** 6 vCPUs, 24 GB RAM, 20 GB free disk.

| Size | Recommended CPU | Recommended Memory | Recommended Disk | Data Threshold |
| --- | --- | --- | --- | --- |
| **Small** | 8 cores | 24 GB | 250 GB SSD | Up to 5 TB |
| **Medium** | 16 cores | 48 GB | 500 GB SSD | 5 TB – 100 TB |
| **Small** | 8 cores | 24 GB | 300 GB SSD | Up to 5 TB |
| **Medium** | 16 cores | 48 GB | 600 GB SSD | 5 TB – 100 TB |
| **Large** | 32 cores | 64 GB | 1 TB SSD | 100 TB – 1 PB |
| **Enterprise** | 48 cores | 128 GB | 3 TB+ SSD | 1 PB+ |

Expand All @@ -30,10 +30,12 @@ The installer validates free space on the following paths:
| --- | --- | --- |
| `/` | 20 GB | Root filesystem |
| `/var` | 20 GB | K3s data, containers, logs |
| `/var/lib` | 20 GB | K3s data directory |
| `/var/lib` | 52 GB ** | K3s data directory |
| `/var/log` | 5 GB | System and application logs |
| `/etc` | 1 GB | Configuration files |

** The scan queue reserves disk space in `/var/lib`, so the required size of `/var/lib` depends on the deployment size. The scan queue needs 32 GB multiplied by the deployment size. For example, a deployment size of 2 requires 64 GB for the scan queue plus the 20 GB baseline, for a total of 84 GB in `/var/lib`.

The installer also verifies write access for `/var`, `/tmp`, and `/etc`.

## Operating System
Expand All @@ -46,7 +48,7 @@ The installer also verifies write access for `/var`, `/tmp`, and `/etc`.

**Compatible distributions (engineer-validated):** Red Hat Enterprise Linux (RHEL) 8 and 9, CentOS, Fedora, and Debian stable releases are compatible with the installer. Ubuntu is Debian-based, so Debian stable releases are also compatible.

**Not supported:** AIX and other non-Linux operating systems aren't compatible. The installer requires a 64-bit Linux distribution with kernel capabilities including cgroups v1/v2, Linux namespaces, and overlay filesystem support.
**Not supported:** AIX and other non-Linux operating systems. The installer requires a 64-bit Linux distribution with kernel capabilities including cgroups v1/v2, Linux namespaces, and overlay filesystem support.

## Kernel and Container Runtime Requirements

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