TrueNASGuidestorage · zfs · homelabupd. 2026-09-06
// system reference
Store it right the first time.
The complete guide to TrueNAS at home. ZFS, datasets, snapshots, RAIDZ, and the storage decisions you don't want to redo six months from now.
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// document_index12 of 23 documents
Documents
How to Migrate from TrueNAS CORE to SCALE Safely
Guides · Sep 6Best CPU for TrueNAS SCALE 2026
hardware · Aug 27RAIDZ1 vs RAIDZ2: Parity, Resilver Risk, and Which to Pick
zfs-fundament… · Aug 23TrueNAS Community Edition vs SCALE: What Changed
getting-start… · Aug 18TrueNAS RAM Requirements by Workload
hardware · Aug 9Best Hard Drives for TrueNAS NAS in 2026
hardware · Aug 2Best Budget NAS Build for Home: What Actually Works in 2026
hardware · Jun 21How to Set Up TrueNAS SCALE: From Bare Metal to First Share
getting-start… · Jun 13Unraid vs TrueNAS for Media: Flexibility or ZFS Integrity
getting-start… · Jun 13How to Expand a TrueNAS Pool: 3 ZFS Options
storage-plann… · May 30TrueNAS Degraded Pool: How to Replace a Failed Disk
troubleshooti… · May 30TrueNAS Pool Won't Import? 5 zpool Fixes That Work
troubleshooti… · May 30Start here
The reference pages behind most TrueNAS build decisions: what the hardware has to clear, which release to install, how to lay out the pool, and how to grow it later.
- TrueNAS System Requirements: Minimum & Recommended TrueNAS needs a 64-bit 2-core CPU, 8 GB RAM, a 16 GB boot SSD and two data drives. Compare the official minimum with practical home NAS targets.
- TrueNAS RAM Requirements by Workload TrueNAS RAM sizing for file sharing, apps, VMs, iSCSI, directory services, L2ARC, and deduplication, based on official workload guidance.
- TrueNAS SCALE vs CORE in 2026: Which Should You Use? TrueNAS SCALE is the active Linux platform; CORE's final release was in 2025. Compare apps, VMs, hardware support, pool portability and migration.
- ZFS RAIDZ vs Mirror: Capacity, IOPS, and Resilver Risk Choose 6- to 8-wide RAIDZ2 for media and bulk storage, or two-way mirrors for VMs and databases. Compare usable capacity, fault tolerance and growth.
- TrueNAS Zvol vs Dataset: Block vs File Storage Use a TrueNAS dataset for SMB, NFS and app files; use a zvol for iSCSI or a VM's raw disk. Compare recordsize, volblocksize and snapshots.
- How to Expand a TrueNAS Pool: 3 ZFS Options Add a full vdev, replace every drive with larger disks, or widen RAIDZ one disk at a time on OpenZFS 2.3+. Compare bay, budget and parity trade-offs.
Size a pool in the ZFS capacity calculator · Browse all guides
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