Truenas pool expansion. It was used à 97 %.

Truenas pool expansion. Join me as I figure Jan 14, 2025 · It’s not until all drives are replaced with a higher capacity that ZFS’s (auto) pool expansion will trigger, and you’ll immediately have a pool with 20-TiB members (instead of the previous 10-TiB members). 0, and then begin you migration to TrueNAS Scale Dragon Fish (24. Jan 4, 2025 · I’m setting up my new TueNAS SCALE server and expanding my existing RAIDZ1 pool with a repurposed HDD. Create Pool at the top right of the Storage Dashboard screen opens the Pool Creation Wizard. I added a 5th drive of 6Tb. 04 Jul 9, 2021 · Wait for an unknown period of time (likely to be measured in months, but I suspect 18 months is probably the best case) until the RAIDZ expansion feature comes out of testing and is delivered into the mainstream OpenZFS product, and subsequently included in a version of TrueNAS, then expand your VDEV (1 disk at a time). The RaidZ2 calculators I found indicates a 16. If you don't care about redundancy you can just add "stripe" vdevs of one drive each to Apr 25, 2025 · TrueNAS uses ZFS data storage pools to efficiently store and protect data. if i want to add another vdev core tells me i need at least 3 disks "This type of VDEV requires at least 3 Apr 5, 2025 · The installation has been updated to TrueNAS SCALE 25. 2. Although the expansion process can accumulate quite a bit of overhead, that overhead can be recovered by rewriting existing data, which is probably not a problem for most people. New data blocks adopt the new Nov 6, 2024 · SCALE, ZFS, RAID-Zx-expansion anexgohan November 6, 2024, 3:39pm 1 Hi there, I extended my raidz1 3x4tb pool with a new 1x 4tb drive. Have you tried the “Expand” option in the Storage Dashboard? Feb 6, 2024 · Hello, Using TrueNAS-13. So I've ordered in new disks and am burning them in as I type--I expect badblocks will finish some Jan 20, 2025 · Explore TrueNAS Fangtooth's integration of OpenZFS 2. Over the last week I learned all about storage pools and how to move them, expand them, and even what not to do when trying to grow your storage pool. In Configuring TrueNAS - Create a Samba Share we’ll finally use the data pool to expose a Samba network share in our network. truenas. 31T / 82. 10 (Electric Eel) introduces RAIDZ extension to allow incremental expansion of an existing RAIDZ VDEV using one more disks. Auto TRIM allows TrueNAS to periodically check the pool disks for storage blocks that can be reclaimed. I am not sure how good the reporting of resilvering in the UI already is, but expansion progress needs to be as good if not better (because it runs for longer). Why is this? Apr 25, 2025 · TrueNAS uses ZFS data storage pools to efficiently store and protect data. It's overpowered and consumes way to May 15, 2024 · Raidz expansion could help you, but at 97% you probably cannot afford to wait for this feature. If you didn’t require everything to be all on Raid-Z2, you could create another pool, VDEV structure, like a two pair mirror, and redistribute your data between the pools as wanted. 61% done, 10 days 02:44:05 to Apr 25, 2025 · TrueNAS 24. It’s been a long while since I personally looked at the specific logic behind it so I had to go ask internally. You could also create a new pool that is 4 disks in raidz1, transfer your data to the new pool, then wipe your original pool to add a second 4-disk raidz1 to the new Aug 29, 2025 · TrueNAS RAIDZ extensions to allow incremental expansion of an existing RAIDZ VDEV using one more disk. I have been using TrueNAS for a short Apr 25, 2025 · Pool Options Contains any additional high-level settings for the pool. Five expansion shelf options make TrueNAS capacity expansion effortless. The pool is NOT degraded. I searched the documentation but found it unclear. I had 4x 6Tb drive in a RaidZ2 pool with gave me 10. The 7th drive is visible under the Topology, manage devices tab but is not showing extra drive space (4tb). This could save you hours if you are running the latest release because it talks about all the “gotchas” caused by bugs in the latest version of Scale and what the workarounds are. What is a pool? Storage pools attach drives organized into virtual devices called VDEVs. When I go into manage devices it shows what looks like should have been the 5th drive I was going to add but it’s just a random string. com for thread: "RAIDZ expansion, best method when increasing disks and replacing with larger at same time" Unfortunately, no related topics are found on the New Community Forums. Mar 12, 2025 · Thanks for the detailed info which will give us a fast start. 58T in 14:46:52 with 0 errors on Sat Nov 16 13:26:14 2024 expand: expansion of raidz2-0 in progress since Fri Nov 15 21:05:39 2024 6. Apr 25, 2025 · Provides instructions on managing storage pools, VDEVs, and disks in TrueNAS SCALE. As you can see, the caveat of this operation is that the parity Dec 5, 2024 · Hello Truenas-Community, I have recently installed Truenas Scale and a couple of days ago I was trying to extend my RAIDZ1 hdd-pool of 3 disks to 4 disks. What I want: Replace both 3TB HDDs with new 8TB HDDs * I would not like to create a new VDEV As I understand it, there are two ways to do it. All drives in a single vdev are treated as if they had the size of the smallest one. 9M/s, 7. Jun 7, 2024 · Hello! Support for RaidZ Vdev Expansion is now available in ElectricEel Nightlies. 0-U5. The release of OpenZFS 2. Nov 19, 2024 · Hello, I’m using a homemade server with TrueNas scale latest version 24. Redundancy is managed at the vdev level, you cannot mirror pools. Over the last week I learned all about storage pools and how to move them, expand them, and even what not to do when trying to grow your storage pool. Use this calculator to estimate the storage capacity efficiency of a ZFS RAIDZ VDEV after incremental extension. These RAIDZ expansion and Fast Dedup features will be integrated with TrueNAS then. 1. g. Be sure to follow all the steps especially in moving the Oct 28, 2024 · Hello Truenas Guys, I was expanding a raidz1 pool from 6 wide to 7 wide and was 80% complete when i had a power failure and was forced to shut down the server. 3 supporting RAIDZ expansion won’t be until late 2024 at the earliest: “OpenZFS 2. 9T copied at 91. Fault tolerance exists ONLY at the VDEV level. 0-U6. AFAIK you cannot stop an expansion once started. 10. I had 5 x 14TB drives Dec 2, 2024 · Hello, I am contacting this forum because the capacity of my pool has not increased after changing my three 6TB disks to 8TB disks (RAIDZ-1) Current size : 10. Especially since TrueNAS detects changes in hard drive size. Without disruption, you can add expansion shelves and drives to TrueNAS to keep pace with growing storage needs. Apr 25, 2025 · Provides instructions on managing storage pools, VDEVs, and disks in TrueNAS SCALE. Feb 22, 2025 · That’s using the Raid-Z expansion feature. 04RC1, and a “zpool upgrade POOL” has been executed in the storage corresponding to said pool via command terminal. For more details about TRIM in ZFS, see the autotrim property description in zpool. the user being asked after a RAIDZ expansion if he wants to rebalance the pool or the rebalance task showing up in the task manager with a progress bar so the user doesn’t have to rely on the ZFS CLI. RAIDZ extension allows resource- or hardware-limited home lab and small enterprise users to expand storage capacity with lower upfront costs compared to traditional ZFS expansion methods. Jul 5, 2023 · From the informations you gave us I don't see any other options than: deleting some files from the pool expanding the pool by adding another vdev creating a new pool and moving some files there The first option means either deleting data (I'd start from the snapshots) or moving some files to other places such as another machine, the cloud or an external drive; this should cost you little or no Nov 10, 2020 · Hello community! I've got some questions about Storage/Pool config and expansion therof. All vdevs in a single pool are striped, there is no striped or concatenated vdev. IIRC, there were issues with the whole “autoexpand” behavior previously that could led to some esoteric support edge cases and this was the preferred approach that has the least risk to customers shooting their foot off. Existing data blocks retain their original data-to-parity ratio and block width, but are spread across the larger set of disks. Drives arranged inside VDEVs provide varying amounts of redundancy and performance. Last I heard it was supposed to hit production this summer. I replaced it and resilvered with no issues. Jan 13, 2024 · My pool (details in my sig) is getting full, and the 6x 4TB disks that comprise one of my vdevs are about 9 years old at this point, so both point to time to replace them with something larger. replacing each drive in a vdev with a larger one, and then running an expand operation to expand the pool. 0 I have Raidz2 with 5x18TB drives, I had one drive which developed bad sectors. Estimated Duration Information: Clearly inform the user of the estimated duration for the RAIDZ expansion process Nov 26, 2024 · Okay, so I bought a new NAS. for a 4x Z2, 2 data blocks and 2 redundancy blocks - whilst new files will be written 3 data blocks and 2 redundancy blocks. 0) will take most of the next 12 months to mature and reach release quality and status. ZFS and VDEVs combined create high-performance pools that maximize data lifetime. Nov 23, 2024 · Looking at more mirrors Copying data somewhere else (likely buying another drive to do so) & creating a raidz2 pool & moving data back Doing some sketchy stuff so you don’t have to copy anything anywhere (or buy anythign else) else but end up with raidz1/raidz2 pool with future raidz expansion! Jul 21, 2023 · Hi, i use Version: TrueNAS-13. com for thread: "Creating a zfs pool with "room for near-future expansion"" Unfortunately, no related topics are found on the New Community Forums. For this I upgraded the rig with the latest Electric Eal nightie, with succes, except it wasn’t detecting my old HBA anymore. I want to have a storage pool with 5 8tb drives but only have 3. 77 TiB Expected size : 14,56 TiB Current OS : TrueNAS Scale ElectricEel-24. Is it possible to expand the number of drives in a pool in the future? Nov 12, 2024 · I am expanding a RAIDZ2 pool from 4 to 5 disks on TrueNAS 24. Replace Apr 25, 2025 · RAIDZ extension allows TrueNAS users to add disks one at a time to an existing RAIDZ VDEV, incrementally expanding capacity. I bought 3 8 TB hard drives along with 1 I already had. Jun 15, 2021 · ZFS fans, rejoice—RAIDz expansion will be a thing very soon Founding OpenZFS dev Matthew Ahrens opened a pull request last week. Feb 22, 2025 · That is simply not possible with ZFS. So I extended the vdev one disk at a time. Recently I bought 4 more 20to disks and wanted to grow that RAIDZ1 vdev. My case: i have "main" pool with 1 VDEV MIRROR with 2 3TB HDD. Is there a way to initiate the pool expansion to where it It works the same in Core as it does in Scale, they use the same zfs technology underneath. Been holding off switching to truenas and zfs for a while now, waiting for this feature. Feb 18, 2025 · I tried to expand my 3 drives to four drives but it has been going for 12h now and in truenas it still shows " Waiting for expansion to start Created by: [object Object] (API Key)". I’ve read some of the other posts (like this one here (which sadly did not reach a resolution), done some rudimentary troubleshooting, and learned from the CLI that the expansion is going at ~8MiB/s with an ETA in 14 days, which doesn’t seem Sep 2, 2024 · Hello TrueNAS folks, I created a pool with a RAIDZ1 vdev with 3x20to HDDs on latest stable TrueNAS version. I'm moderately familiar with how ZFS handles pools, so what I'm thinking of doing is creating a new 6-drive Z1 out of the spare drives, copying the old 5-drive pool to it, then wiping the old 5-drive pool, creating a second 6-drive Z1 then adding that to the pool. This can have a performance impact on the pool, so the option is disabled by default. Jul 18, 2024 · Over the last two weeks, I tried out the RAIDZ expansion feature with an 18TB drive in my main pool. I amrunning 25. Also using the "Expand Pool" doesn't do anything. 0-U7 and am running out of disk space. May 7, 2025 · TrueNAS UI uses zfs stats rather than zpool stats when reporting pool usage. This process started but at some point truenas crashed and got on boot . You can add a mirror 2x2T vdev to the existing pool but that would require two new drives. But with it comes some complexity on how to manage and expand your ZFS storage pools. Dec 4, 2019 · Related topics on forums. 04. 8. It could be a 3-disk raidz1 to match your first vdev, but then you won't be using all 8 disks. Failure of Oct 3, 2022 · TrueNAS: How To Expand A ZFS Pool (Update RAIDz Expansion Video added to Description) Lawrence Systems 375K subscribers Subscribe I am setting up a truenas server and I have everything i need except hard drives. attach. Jan 14, 2025 · Hello Guys, So, i’ve a NAS which has 8 disk in RAID-Z2 and i’m planning to add 8 more disks to the same pool. Please trueTo get an 8-disk raidz2, you'll have to backup and destroy your existing pool. Sep 5, 2024 · But I agree that better reporting of pool expansion progress in the UI would be good. Sep 3, 2024 · The latest version of TrueNAS, TrueNAS Scale Electric Eel which is now in Beta supports RaidZ expansion. Next, I added another drive with the intention to expand the vdev turning it into 6x18TB pool. How can I best get it unstuck? May 24, 2024 · By default, TrueNAS uses 128k recordsizes but you can adjust them on a per-dataset basis, if you wish (See Storage/Pool/Dataset triple-dot on the right of the GUI). The other way to make the pool larger would be to add another 6 wide Raid-Z2 VDEV. expanding vdevs still hasn't landed in openzfs, so you can expand by either: adding a new vdev of any type. It was used à 97 %. I encountered a few issues that could be handled better. The process started and in the storage section it also shows that the disk has been added to the pool but the pool didn’t increase. The SMART data doesn’t indicate any issues. This is my first use case of ZFS and Truenas, so excuse my ignorance. Export/Disconnect Use to prepare drives for Nov 2, 2022 · I assume you mean "RAIDZ vdev expansion" as "pool expansion" has always been possible (by adding more vdevs) - the status on that remains as "when it's done" but that date may be closer than we think. The expansion speed was ~55 M/s but I got it to ~110 M/s by increasing the raidz_expand_max_copy_bytes parameter: admin@truenas ~ $ cat /sys/module/z… Nov 22, 2022 · Related topics on forums. Apparently it didn't? Apr 25, 2025 · The Pool Creation Wizard configuration screens include a configuration preview and an inventory list of disks available on the system. 7 Tb of capacity. First way: 1. Apr 27, 2025 · I am running truenas on proxmox with 48GB DDR5 RAM with 3950x with 24 CPUs assigned. I used the expend new feature to increase my free space. The UI has been stuck at 25% pool. When I did the extend feature, it was stuck on Jul 7, 2024 · The pool did mount after it rebooted but now it’s in a degraded state. The capacity increased to 13. An option for expansion is to a add a second vdev. Every TrueNAS model has enclosure management, supports storage controller redundancy and global hot spares, zero downtime firmware updates, upgrades, and offers around the clock support. There are some caveats, for best data usage you will want to rebalance your data, but that would allow you to add extra disks to your existing RaidZ2 vdev. attach job is at 25% and it doesn’t progress since Nov 7, 2024 · big-pool being online is good - you’ve obviously since rebooted several times, your pool is importing properly, so the disks and ZFS labels themselves seem to be healthy. 08 Tb. A pull request was opened in June of 2021, and the testing thus far has been quite successful by my understanding, with multiple users reporting success at expanding Z1/Z2 vdevs. 1 I have a RAIDZ2 pool with 5 X 4TB disks. , TrueNAS Scale - Auto Expand ZFS Pool Issues, Expand mirror?, No Capacity Expansion After Disk Upgrade), many bugs have been reported and closed as resolved, and yet the problem persists in 25. I came from a QNAP background where this was fairly easy to achieve, but not sure on TrueNAS. 4 Tb with 5x 6Tb in RaidZ2. First a short overview of my current and planed set-up: Currently I'm running a Windows Server 2016 system on old hardware I've got very cheap (for free) from work. Thus, if I were you, I’d start by upgrading to TrueNAS Core 13. So my advice is to wait until the expansion has finished, then run a scrub and once it completes run zpool status -v to see whether it corrected the unrecoverable write or not. 3 (or potentially 3. My goal is to somehow expand this to all 12 drives. I added a 6th 6Tb drive Jan 16, 2025 · Yes, wanted to be sure cause i don’t want that if a disk fails from the newly added VDEV to the pool and then the pool dies because the data was not re-balanced or parity issues. For those who do not know its a new feature that allows to extend an existing raidz vdev with another disk, e. Nov 4, 2024 · This Option appeared after upgrading to “TrueNAS SCALE ElectricEel 24. I want to expand my RAIDZ2 pool to use the 3 X 4TB extra disks. 0. Once i was able to reboot, truenas did not restart the pool expansion. Jun 2, 2025 · Current behavior is intentional by design. : r/truenas r/truenas Current search is within r/truenas Remove r/truenas filter and expand search to all of Reddit May 18, 2025 · This feature request is for exposing the functionality of the new “zfs rewrite” subcommand in a user-friendly way in the TrueNAS GUI - e. e. Feb 17, 2024 · Hi, I could not find an answer to a seemingly simple question. The one I already had needed to be emptied into the pool before I could add it to the pool, so I made the RaidZ1 array with 3 disks and used the new “Extend” feature to add the fourth disk. During expansion, the original files are all moved based on the original data:redundancy ratio i. Extend button is available when clicking in the top level raidz vdev on the pool status page. I think it cannot be stated enough how awesome the RAIDZ vdev expansion feature is, especially for home users who want to start small and grow their storage over time. I documented every single step and verified it works flawlessly by doing it a second time. It took a Dec 27, 2021 · I am currently running TrueNAS-12. Instead of deleting files, it seemed easier for me just to buy another drive and expand pool size. Aug 16, 2024 · In just a few steps, you can define a data pool in TrueNAS that meets your personal requirements and options in terms of performance and costs. Apr 27, 2024 · I just moved from my main pool having 2 disks to 4 disks. If I go to the jobs page, it shows that the pool. I’ll get back to this later. The process is still at 25% even after 24 hours, is this normal behavior or should i be worried? Jan 17, 2025 · Based on other people’s comments previously, I think Truenas should automatically increase the capacity of the pool once I replace the 2TB disk with 8TB, but I am unsure what does the “Expand” button do. from a 5 wide raidz to a 6 wide raidz. If the scrub runs clear, then do Some questions about expanding storage/my options. And I have 3 X 4TB disks that are available. So it’s fine even if your data isn’t balanced across both VDEV’s as long as that VDEV itself doesn’t fail entirely. 3, featuring Fast Dedup and accelerated RAIDZ expansion. When performing a RAIDZ expansion, the current process can be optimized to improve user information and system performance. 10 [release]” Storage>Upgrade Upgrade Pool Proceed with upgrading the pool? WARNING: Upgrading a pool is a one-way operation that might make some features of the pool incompatible with older versions of TrueNAS: st4000dm I get that after this I will not be rolling back to previous backups, I will make new backups if i Nov 17, 2024 · Thanks. 2 with 3x6tb drives in the pool, i reached 80%+ space usage and wanted to add another 6tb drive but i can't figure out how i should be able to. Jan 14, 2023 · ZFS is a great file system that comes with TrueNAS and can meet all of your storage needs. As I have already stated before. Mid- to long-term, the only way out of this situation and back to sanity is to back up everything, delete the pool and rebuild something better. If I go to the command line I do see now some indication that the expansion is continuing slowly despite the GUI getting stuck; $ sudo zpool status pool: pool state: ONLINE scan: resilvered 6. Can i create another VDEV with the another 8 disks and then add it to the existing pool? Jun 2, 2025 · Many threads have been opened (e. 2 I expected it to do it automatically as I have read. fsss xibmv yxno sjet wyl cwysqclm yzzy ukvho hjgtz eptx