2024年1月5日 · RAIDZ is usually less expensive for a given combination of capacity and redundancy than mirrors. That difference can easily run into thousands--or even tens of thousands--of dollars. To dismiss that as "a cheap alternative" is frankly nonsensical.

This amazing document, created by iXsystems in February 2022 as a "White Paper", cleanly explains how to qualify pool performance touching briefly on how ZFS stores data and presents the advantages, performance and disadvantages of …

2024年10月29日 · RAIDZ extension allows TrueNAS users to add disks one at a time to an existing RAIDZ VDEV, incrementally expanding capacity. Use this calculator to estimate the storage capacity efficiency of a ZFS RAIDZ VDEV after incremental extension.

2011年6月9日 · Ok, so i set up a test box with a simple share of 1 HD and got everything working. Now, I'm about to build a production NAS to put on my network. I've already got all the parts including 4 WD 1TB Blue drives. I intend on using the built in software raid-z. I'm curious how others did their...

expanded once to 6-wide, has 4 data to 2 parity). However, the RAIDZ vdev's "assumed parity ratio" does not change, so slightly less space than is expected may be reported for newly-wr itten blocks, according to zfs list, df, ls -s, and similar tools. So, if you add a new drive to a RAIDZ vdev, you'll notice that after expansion, you will have less

2024年12月18日 · The record-breaking TrueNAS 24.10.1 brings RAIDZ Expansion, Docker Compose, NVMe support, and 160+ enhancements.

2017年10月19日 · RAIDZ Expansion feature by ahrens · Pull Request #12225 · openzfs/zfs Motivation and Context This feature allows disks to be added one at a time to a RAID-Z group, expanding its capacity incrementally.

2014年3月22日 · I would prefer to have a RAIDZ just to get out out approx. 10.x TB from the 4 Discs. As alternative I would create a RAIDZ2 with approx. to 6.9 TB Obviously FreeNas warns me that a RAIDZ configuration is not ideal in case of 4 Discs.. According to what I understood right now: - RAIDZ with 4 drives is slower than RAIDZ2

2023年12月13日 · Determine the usable capacity and other metrics of a ZFS storage pool and compare layouts including stripe, mirror, RAIDZ1, RAIDZ2, RAIDZ3, and dRAID.

2014年3月14日 · Soit de mémoire tu peux ajouter à ton pool RaidZ existant un RaidZ1 que tu mettras en stripe avec ton RaidZ1-0. Ton RaidZ = Stripe de RaidZ1-0 (l'actuel) et RaidZ1-1 (le nouveau), dans ce cas dès qu'un disque tombe en panne, change le au plus tôt car si tu perds 2 disques dans une même grappe de RaidZ1 c'est tout ton pool RaidZ que tu ...