Truenas add disk to pool, You probably don't want to do what you are trying to do

Truenas add disk to pool, 8. The original vdev is immutable. That vdev is recommended to be similar to the first, in this case a 4 disk raidz1. Aug 15, 2024 · A user asks how to add more disks to an existing ZFS pool without destroying the data. 6 days ago · As a new user to proxmox (coming from TrueNAS Scale), I made a bunch of mistakes that cost me an aggravating week of time/effort. You can only expand a pool by adding another vdev. Other users reply with suggestions, links, and questions about the pool layout and the failed drive. May 5, 2025 · This tutorial looks at how to add a disk to an existing pool in TrueNAS. Then when you upgrade again you do another rz2 of 4 drives, or redo the pool and go rz2 with 8 drives and reclaim all that storage space. For more details about TRIM in ZFS, see the autotrim property description in zpool. Now I will show you how to expand the storage capacity by adding a new drive. So if I planned to add 2 more 16TB (3 total), I should do it all at once. The two biggest issues I had were: Not realizing I had to export my TrueNAS zfs pool before importing it into Proxmox (which ultimately corrupted my zpool and made. So you might be able to add the two new disks as a mirrored vdev with the command line, but there is a reason why the gui won't let you do that. Apr 25, 2025 · Contains any additional high-level settings for the pool. This can have a performance impact on the pool, so the option is disabled by default. Jul 21, 2024 · Motivation This is a follow-up post to Installing and configuring TrueNAS Scale for home use in which I wrote up how to set up TrueNAS Scale on a micro PC. You probably don't want to do what you are trying to do. There are a few different options, but learn which is best for you! Nov 2, 2025 · Adding just one disk might not make it worth it to re-write all your data, if you plan on adding more disks sooner rather than later. Auto TRIM allows TrueNAS to periodically check the pool disks for storage blocks that can be reclaimed. Since TrueNAS Scale is using ZFS, this isn't as straightforward as just plugging in a new disk and formatting it. If you add another two disks you can either do another mirror or a raidz2, either way you can survive 2 disk failures, rz2 is just any two disks.


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