NAS: shares, permissions, and operations

Objectives and progression

A technical course with six modules and fictional APS scenarios. Learn to validate mounts and identities, interpret NFS/SMB controls, analyze quotas and caching, and prepare migrations with functional acceptance. Includes selected Linux, Samba, Windows, and ONTAP examples, primary references, and an internal assessment of 24 decisions in 60 minutes.

Audience: APS L2/L3, Linux and Windows administration, infrastructure, storage teams, and technical managers.

Prerequisites: Storage, file, identity, and networking fundamentals; examples state relevant conditions.

300 estimated study minutes

• Identify protocol, source, options, and actual mount context.
• Distinguish authentication, share access, and effective file permissions.
• Separate authentication, integrity, confidentiality, and acknowledged persistence.
• Interpret NFS options without confusing responsiveness, coherence, and remote outcome.
• Distinguish quotas, measurement windows, and metadata work.
• Validate effective configuration, metadata, and operations before accepting a change.

Modules

1. Shares and mounting
2. Identity and permissions
3. Security and write acknowledgement
4. Caching, timeouts, and uncertainty
5. Capacity and observability
6. Changes, migration, and RUN

Continue learning

Technical assessments

• Storage
• SAN
• Linux Administration
• SFTP

References and version

DR NAS 2026-09; selected Linux NFS, Samba, Windows SMB and ONTAP behavior

• Linux NFS client options, cache and security · 2026-09-30
• Linux NFS export policy and identity mapping · 2026-09-30
• Samba share access, effective permissions and encryption · 2026-09-30
• Samba configuration validation limits · 2026-09-30
• NFS client and server statistics · 2026-09-30
• NFS per-mount statistics · 2026-09-30
• SMB signing overview · 2026-09-30
• SMB encryption and security enhancements · 2026-09-30
• Inspect and maintain effective NFS exports · 2026-09-30
• Linux rename semantics and uncertain NFS outcome · 2026-09-30
• ONTAP hard, soft and threshold quotas · 2026-09-30
• showmount and NFSv4-only service limitations · 2026-09-30
• Linux mounted filesystem identity and options · 2026-09-30
• DataSync metadata preservation by source and destination · 2026-09-30
• DataSync ownership, permissions and copy options · 2026-09-30