Subchapter 43.6
references/fsx-openzfs-knowledge.mdMarkdown6 KBView on GitHub
This reference captures information addressing common gotchas and frequently asked questions for Amazon FSx for OpenZFS to support accurate model responses. It is not a complete specification. The authoritative source for current specifications, limits, quotas, and API behavior is the Amazon FSx for OpenZFS User Guide, , , and . Retrieve current specifications, limits, and quotas from those pages before citing specifics; cite figures only from those pages.
What it is: Amazon FSx for OpenZFS provides fully managed, cost-effective, shared file storage powered by the popular OpenZFS file system, and is designed to deliver latencies as low as a few hundred microseconds and multi-GB/s throughput along with rich ZFS-powered data management capabilities (like snapshots, data cloning, and compression). It is accessible from Linux, Windows, and macOS NFS clients.
Well-suited for: Linux and NFS workloads that want the lowest latency and a simple, high-performance NAS, including migrations from ZFS or other Linux file servers, dev/test that benefits from instant writable clones, front-end EDA, financial modeling, media processing, and latency-sensitive line-of-business apps and databases.
See When to choose Amazon FSx (opens in a new tab) and Amazon FSx for OpenZFS features (opens in a new tab).
You MUST retrieve information from the linked documentation in the below table before answering any user question on the related topic.
| Topic | Example service characteristics, features, and actions | Documentation |
|---|---|---|
| Access and protocols | NFS (v3, v4.x); S3 Access Points; POSIX identity | Accessing your data (opens in a new tab) |
| Deployment and availability | Multi-AZ (HA); Single-AZ (HA); Single-AZ (non-HA); max file-system size | Availability and durability for Amazon FSx for OpenZFS (opens in a new tab) |
| Storage classes | Intelligent-Tiering; SSD | Choosing a storage class (opens in a new tab) |
| Data protection and management | snapshots; writable clones; LZ4 and Zstandard compression; on-demand replication; backups; child-volume quotas | Protecting your Amazon FSx for OpenZFS data (opens in a new tab) |
| Performance | latencies as low as a few hundred microseconds for cached data; provisioned throughput and IOPS; record size | Performance for Amazon FSx for OpenZFS (opens in a new tab) |
| Security | KMS at rest; in-transit automatic on supported EC2 (Nitro-based) instances; VPC, IAM, POSIX | Security in Amazon FSx for OpenZFS (opens in a new tab) |
| Health and monitoring | CloudWatch metrics; alarms; CloudTrail | Monitoring Amazon FSx for OpenZFS file systems (opens in a new tab) |
| Pricing | storage by class and deployment; throughput capacity; SSD IOPS; read cache; backup storage; compression and clones (not exhaustive, review pricing page for the full list of pricing dimensions) | Amazon FSx for OpenZFS pricing (opens in a new tab) |
You MUST retrieve information from the linked documentation in the below table before answering any user question on the related service.
| Example service | Example characteristics and common workloads | Documentation |
|---|---|---|
| S3 Access Points for FSx | S3 API access to file data; per-access-point IAM and POSIX; concurrent NFS and S3 | Accessing your data using Amazon S3 access points (opens in a new tab) |
You MUST retrieve information from the linked documentation in the below table before providing the user with any guidance on the related area.
| Example area | Example errors | Example fixes | Documentation |
|---|---|---|---|
| Data protection and recovery | snapshot delete blocked by a clone; space not freed; compression not retroactive | delete dependent clones; copy data to apply new settings | Protecting your data with snapshots (opens in a new tab), Updating an Amazon FSx for OpenZFS volume (opens in a new tab), DeleteSnapshot (opens in a new tab) |
| Connectivity and networking | file-system creation fails on security group | allow inbound TCP 2049 from the security group itself or the subnet CIDR so the file-system hosts can reach each other | Troubleshooting Amazon FSx for OpenZFS issues (opens in a new tab) |
| Connectivity and networking | mount hangs or times out | allow inbound TCP 2049 from the client (restrict to the specific client security group or narrowest applicable CIDR); verify subnet routing and the volume path | Troubleshooting Amazon FSx for OpenZFS issues (opens in a new tab) |