Snapraid vs zfs. So until recovered, the data is not available.

What are the pros and cons of parity via snapRAID vs mirroring via DrivePool. After getting some more information, it also appears ZFS is fairly limited in how flexible data integrity (Parity) drives go. The same for the default CRC32C used by Btrfs. I am currently using ZFS to keep them in a RAID1Z zpool. This implementation is a major difference from unRAID or traditional RAID (mdadm, ZFS, etc) all of which calculate parity in ‘real-time’ (unRAIDs cache drive system is an exception). And ZFS was designed with ECC in mind. ZFS really doesn't need that much memory. Currently have a 7 disk protected SnapRAID that are all formatted ext4. This worked well for the last 20 months and ZFS is a cool system. Feb 11, 2021 · Hardware RAID vs ZFS doesn't make a lot of difference from a raw throughput perspective -- either system needs to distribute data across multiple disks, and that requires running a few bit shifting operations on cached data, and scheduling writes to underlying disks. My Uses cases perfectly match SNAPRAID application, i don´t have any mission critical application to support. All datasets within a storage pool share the same space. SnapRAID reads sequentially, so it needs less time to rebuild, which means less time for another drive failing in that time. Assuming space is not an issue (I don't need more than 6TB of space and I'm happy to buy 2x, 3x or 4x 8TB drives). 02. For the record he does also really like ZFS, but his write up of MergerFS and SnapRAID intrigued me for Soon I'll move to some new drives and that should be the right time to move data to some Linux FS so I can build a Linux server. Check Content and Data, then click on Save. I'm using openmediavault (OMV 6) with snapraid and mergerfs I'm using btrfs but I'm pretty clueless to it so no advanced features of that just like it's lower overhead than zfs as it's for a home media server & I'd like to add disks too in the future easily and don't want them constantly spun up. This guide builds on the Perfect Media Server setup by using BTRFS for data drives and taking advantage of snapraid-btrfs to manage SnapRAID operations using read-only BTRFS snapshots where possible. For this glacial data archiving use case I chose the snapraid near-time parity approach to keep things simple. I'd be looking at roughly $700 to build a ZFS-rated server to run For 1, SnapRAID claims: [3] - ZFS and Btrfs provide a bit-rot protection at the same level of SnapRAID, always checking data before using it. It looks like the generally recommended solution is to use a combination of StableBit DrivePool and snapRAID. OpenMediaVault (OMV) made this easier by having these two available as plugins. ZFS and SnapRaid are plugins in OMV so they are very easy to install. zfs real-time parity and so far I’m still happy with the decision, especially the ease and cost effective extension of the data storage (just keep adding d pools). i have been following the video Snapraid and Unionfs: Advanced Array Options on Openmediavault (Better than ZFS and Unraid) and i also found this link SnapRAID plugin User Guide - setup, undelete, replace disk, reconnect shared folders Oct 13, 2019 · If using SNAPRAID, the best choices for a data disk file system are EXT4 and XFS. 2 parity disks (can use up to 6). sourceforge. Or sometime you might run a "snapraid scrub" before you "snapraid sync" and lose all your changes. snapraid sync once every two days: To update the parities. 1. I definitely recommend sticking with ZFS. Nov 13, 2023 · In agreement with Jim, I do this with UnRaid, works great, tho I’m evolving slightly away from it and decided to reply with the use case I’m moving toward since I think it more or less matches the SnapRaid theme of your post (IE advantage of JBOD / spin down drives for cold storage vs. never had a dedicated NAS but heard of FreeNAS/TrueNAS thought that was the way to go, but after a bit of research i think that ZFS is really overkill for my needs and OMV + Snapraid for some disk failure redundancy would suit me better. zfs will *use* lots of ram for cache if available but it doesn't have to have it. SnapRAID doesn't lock in your data; you can stop using it anytime without reformatting or moving data. advantage of ZFS, and option to do both with UnRaid). scale的优点 - ZFS文件系统 - DOCKER支持（基于K3S） - 虚拟机支持 缺点 - 高级功能配置复杂 - 高级功能需要命令行 - 中文教程非常少 系统的整体使用来说基本功能非常丝滑，配置较其他系统相对复杂，很多参数需要调整，但UI配置完之后作为基本的NAS功能 文件共享方面就完成了，并且 I'm a big fan of Pooling + SnapRAID and personally I think most home users should stay away from FreeNAS / ZFS. You can combine this filesystem with snapraid when you create single disk ZFS pools. If you want to keep it simple XFS, Dual Parity, if file corruption is of concern then run Dynamix File Integrity. This requires the HDD to be spun up. OTOH SnapRAID can recover data, but this is done in an offline fashion. If you need support, ask it in the Forum. i recently bought 4 8tb nas drives that i want to use to setup a raid5 . Select a data disk for Disk. Nov 8, 2017 · No, it's not the same since I'm talking about a modern attempt to solve an old problem while you're still focussed on RAID . After installing the OMVExtras, search for these two plugins […] Can’t add parity on the fly to ZFS, but in the future you will be able to add a drive and expand a RAIDZ / Z2 / Z3. TBH I think you're misunderstanding Snapraid, Snapraid is not raid software per se as in mdadm, Snapraid is a backup program, have a look at the website. Plus, with ZFS, they are actually working on the ability to expand RAIDZ volumes by single disks so that is something that is coming in the future. ZFS is a little more stringent on disk requirements with the parity. Some questions a user of that LVM stack has to answer, aren't even asked of a ZFS user. As for your raid, it depends what you want. Whatever you do either mdadm or zfs using 14TB drives, rebuild time will be long should a drive require replacing. Running it on an hourly basis seems a bit overkill. Don't get me wrong though. Damn it was a cool OS). Non striped means even if you lose more drives than SnapRAID most likely will perform better vs a RAID6 software implementation in writes. I installed and use ZFS because of the benefits over regular raid5. 4. Compared to them, SnapRAID has the following advantages: If the failed disks are too many to allow a recovery, you lose the data only on the failed disks. OpenMediaVault 4. With a good hardware based controller that would be another story. Thanks! In the article: "ZFS and Btrfs provide a bit-rot protection at the same level of SnapRAID, always checking data before using it. I was considering snapraid as an option last year when I was getting away from hardware raid which is why I'm subbed here. It`s fine, we can use zpool status but what if I will use all single drives in mergeFS pool formatted to ZFS and also parity will be ZFS? For example, I have: 8TB 10TB 14TB Create ZFS basic pools: 8TB, 10TB, 14TB 8TB+10TB = mergeFS pool, and also 8TB and 10TB - both are content + data drives from snapraid settings. SnapRAID has also a SourceForge and a GitHub page. If will import, mostly completely, your FreeNAS zpools but you'll need to issue the commands manually to do so and there's lots of oddities compared to doing a fresh setup. Snap raid is something different though. 4 nics is superflous for me. 3 RELEASED! It still has a single major downside because SnapRAID does not support BTRFS subvolumes specifically, you can only protect a single subvolume per physical drive. You can here him talk about it here or read one of his write ups here here and here. Snapraid is no replacement for any of the ZFS features, except for the parity. I also read that a con for mergerfs+snapraid is that rebuilding takes a looooong time and having drives die is inevitable. 04 . Jul 24, 2023 · ZFS-formatted disks in Unraid's array do not offer inherent self-healing bitrot protection. Tips and tricks on configuration snapraid-runner can be found on our forums. Also has better bitrot protection Snapshots only help with fat finger scenarios, they are not true backups at hardware level. 6. ok bought myself a new pc home server / NAS - to replace my old pc that was for torrents and home file sharing. You can still access the snapshots though and you can use snapraid-btrfs which is a script that uses read-only snapshots for additional protection around each SnapRAID sync. This command verifies the data in your array comparing it with the hash computed in the "sync" command. I think my understanding is: Jul 24, 2021 · [snapraid] ; path to the snapraid executable (e. I'm using FreeBSD in a VM with 16G RAM and a ZFS RAID1 pool for some other VMs so See full list on arstechnica. Storage spaces was a bit faster on sustained writes until top tier is full. Jan 4, 2023 · I have a somewhat peculiar installation (see this for a common problem ZFS users have) with ZFS (via openmediavault-zfs 5. ZFS is not for everybody and I still would recommend it. Jun 2, 2020 · Recently I&rsquo;ve begun listening to the Self-Hosted podcast. Navigate to Disks tab. SnapRAID is more similar at the RAID-Z/RAID functionality of ZFS/Btrfs. This way drives in the pool are as similar as possible in size and if parity wastes one drive, it will be about the same total capacity as the second NAS. ZFS on raid is not unstable nor dangerous. Sep 28, 2013 · The whole point of going FreeNAS is for ZFS. I mean, you can basically replicate Unraid "manually" via MergerFS and SnapRAID (to an extent; SnapRAID parity protection needs to be manually updated, so is only really practical for rarely changing data) and in fact I ran MergerFS with simple data duplication instead of parity protection for years. mergerfs allows you to pool the drives while making it super easy to expand the pool. Nov 4, 2020 · The requirements are just that I have a directory to dump files in, spread them across drives in some manner, and provide protection against up to two disk failures. SnapRAID-BTRFS¶ Background¶. (SnapRAID is not backup!). I think FlexRAID, SnapRAID, unRAID, ZFS are all better solutions. I use the latter for my 200+TB media array and it's wonderful. -mergerfs + snapraid sync after the backup is completed. The only way you can compare them as similar is that SnapRAID does have a basic readonly pooling feature but that isn't really the same. The throughput is the same as a standard Unraid array and may not operate as efficiently as a pure ZFS pool under the strain of multiple concurrent users. While others work, they have caveats. Then configure parity disks: Repeat step 1-4 when configuring data disks. but if you want that i'd more go to ZFS on Unraid. I have OMV 5. Run snapraid diff to check if all files are there. Jan 7, 2020 · zfs *needs* lots of ram for dedupe (if enabled). Best practice recommendation with SnapRAID (ZFS is beyond this answer): Stay with LVM! Make each drive a full PV. content content /mnt/disk5 SnapRAID is more similar at the RAID-Z/RAID functionality of ZFS/Btrfs. I guess it adds an extra layer of protection. Would a 12 x 3TB + 2 x 6TB parity make sense? It would give me 36TB usable space, but what are the tradeoffs? Dec 6, 2020 · There is no real performance advantage when using XFS vs BTRFS, the snapshot stuff is nice to have. I’ve never used Snapraid, but my buddy likes it. com Dec 31, 2019 · If you plan to do offsite backup (you don't specify details on this), I'd go for another zfs pool, and do zfs send | zfs recv (or better still, use sanoid/syncoid) OMV 4. For a while I was set on making a mergerfs+snapraid and having the 14tb be a parity drive but I'm reading mdadm is similar? I'm looking for some advice. But still, my original intention was to work with that I have. " Does it mean that Btrfs and SnapRAID need ECC too or they have some workarounds for using non-ECC? Jun 15, 2018 · I personally can't understand why one would use ZFS for a plex media server storage array over something like Mergerfs/Snapraid. The deletethreshold tells snapraid-runner to cancel the sync if more than 40 files got deleted. Any SnapRAID command can be executed from the host easily using docker exec -it <container-name> <command>, for example docker exec -it snapraid snapraid diff. though i really dont have a clue what im doing nas设备上数据保护与应用保护都是很重要的，raid不仅是保护数据的，更多的是保护应用，nas上合适的数据保护方案是多样化的，可以是raid1（10/6 We would like to show you a description here but the site won’t allow us. I use ZFS (in part) because you can use 'zfs send' and 'zfs recv' for backup by sending snapshots to a ZFS zpool hosted on another server. the question how to split the space between volumes or how to change the size of volumes. The email and smtp sections can be set up with an SMTP server to send you an email if the sync fails. 30 daily. What if you make the internal disks into one pool and the external disk into another pool. See zfs(8) for information on managing datasets. I am building the my personal media server adopting ZFS file system with no mirror or raidz implementation. FreeNAS (freebsd) is moving to the ZFS on Linux codebase in fact. Let me know which one you would pick and why!! Jun 9, 2016 · SnapRAID is supposed to be good for large media files, but not too good for files that change frequently. 56TB usable) i'm doing a server upgrade. Also, do check out Unraid :) If you are interested in Unraid vs Snapraid, I could share what I learnt. Edit: With "it" I mean mergerfs and snapraid. i am wanting to move off of snapraid as i prefer a real time parity but it is important to me that disks can be any size without wasting extra space and i can add disks as i go along without issue and that even with drive failures beyond my parity level only the drives that failed lose data. Its a self contained OS, completely free unlike drivepool and flexraid and uses zfs so you can add/remove drives on the fly. Ignoring features unless relevant to your answer, is snapraid any less safe than ZFS assuming you scrub and repair. Then, once the Snapraid has run its scrubbing procedure I can compare the checksums between zfs and Snapraid for the new files. Dec 20, 2019 · I am running SnapRAID and MergerFS. Honestly I don’t see the point of using regular RAID5 over ZFS. Every run of the command checks about the 8% of the array, but not data already scrubbed in the previous 10 days. Goal/Requirements: MS StoragePool styled setup No need for disks to have the same size SSD read cache Or using mergerFS and snapRAID will be enough? Or maybe an hybrid solution with both of them on 2 pools? For the hardware, I have 4 * 1 To hdd (red WD) (I had them free from my work) , 500 Go ssd for the os and the cache, 16 Go of Ram and an Intel i3 10100. These can be installed via OMVExtras Plugins. This defaults to using lfs (least free space) mode on created files and with the minfreespace option, so my disks won’t fill past 20GB remaining. The more memory you throw at it, the more it uses for its cache (it is called ARC). Since my main NAS is changing to a FreeBSD/TrueNAS with a ZFS pool, what's the best setup? I was thinking maybe 8Tb+8Tb+6Tb+6Tb in the ZFS pool, then 16Tb+3Tb as single volumes on my second NAS. It almost sounds like ZFS may not be a good fit for my particular use-case. The only difference being a zfs array will take less time to create. DrivePool + SnapRAID vs FlexRAID . Once the initial copy is complete, you can adjust the compression level to something more speedy (lz4, usually) for write performance. Snapraid gives you the bitrot protection and redundancy. 4) and SnapRAID (via openmediavault-snapraid 5. Since my data is expected to grow i want to be able to expand the backup storage later. But it can just read your data directly from the drives if there isn't much memory available for caching. Everything else, the ephemeral 'Linux ISO' collection is stored using mergerfs and is protected against drive failures with SnapRAID. My snapRAID sync script : We would like to show you a description here but the site won’t allow us. We would like to show you a description here but the site won’t allow us. (SNAPRAID FAQ) I'm personally using ZFS in zmirrors (RAID1 equivalent) and SNAPRAID on separate servers. This is a 2 part series. The redundancy is planned to be handled by Snapraid and the disks are planned to be independent. First, "snapraid sync" and "snapraid scrub" has a write hole. In this case, you can snapshot your top level archive before running "snapraid scrub" and if something goes wrong you can always remount the snapshot and recover gracefully. I ended up using zfs and the pool is 354 raw/252T alloc Reply reply More replies More replies More replies ZFS mirror = 18+18TB EXT4 single drives = 8, 10, 14 TB (mergefs + snapraid) I see no difference at all, only one disadvantage in my opinion with ZFS: system will see drives only with ZFS plugin, so if something happens with plugin - you will have no options to get data except you have another OS with ZFS utils. Therefore I'd have to basically build a new server to go that route. Feb 14, 2020 · Tells snapraid-runner where SnapRAID is installed and where the configuration file is. I wouldn't bother with software RAID6. 04 OS using Mergerfs to pool the drives, Snapraid for parity, Proxmox for VMs, and ZFS for the both the root file system (mirrored Optane drives) and a RAID10 vdev for a write cache/VM datastore. Feb 21, 2023 · How to setup your Home Server without RAID 5 but with the same level of safety with MergerFS and SnapRAID with Slack notifications. This irreplaceable data such as photographs, a music collection, documents, drone footage and so on is what I use ZFS to store. benefits of a SnapRAID setup (can add or remove drives at will) benefits of ZFS (hashing, snapshots) power consumption (see below) I basically had it running as a large volume, with snapshots scripted such that they run across all drives in the pool. The project provides a handy comparison chart of how SnapRAID stacks up against the other options in this space 2. So here is what i am considering atm:-using mdadm and normal ext as a backup destination. Note the following objectives: Support hard drives of differing / mismatched sizes Enable incremental upgrading of hard drives in batches as small as one Oct 18, 2015 · x12 8TB WD RED drives w/ SnapRAID 64Gb DDR4 2400MHZ 1. But ZFS without those have it functioing just like every other filesystem! I have been considering a switch to MergerFS and SnapRAID. This would ensure Snapraid has the right checksums and that there hasnt been bitrot issues between me downloading the file and the Snapraid checksum. Sep 9, 2014 · For my 4 2TB-HDDs this was done after about 20 hours. 😂 I am following the Perfect Media Server guide. 10. Even with appropriate hardware, I wouldn't go with ZFS. (Adding more subvolumes to Snapraid simply means Snapraid will think they are separate drives, and parity will become useless when the actual physical drive fails. FULL LIST BELOW: S We would like to show you a description here but the site won’t allow us. Jun 15, 2023 · 首先按照油管上面的教程把缓存池数据移动到磁盘阵列，然后缓存池文件系统由btrfs改成zfs，成功了。然后把磁盘阵列的数据全部移动到缓存池，准备把磁盘阵列的文件系统由xfs变成zfs，问题来了。。3个磁盘只能格式化为单个的zfs，不能组raidz。 And in that regard, ZFS wins hands down against LUKS + LVM + SnapRaid + your FS of choice. Looks like 2 votes for serve from the host, 2 for pass through. ZFS doesn't allow spinning down of disks which in my use case isn't awesome. Presumably: I get the disk space usage of SnapRaid, and the technical solidity and online checksumming of ZFS. I probably only have 200GB of media currently on the server, so I should be able to move it back to my other computers if needed to Feb 10, 2019 · ZFS pool with 2 offline disks during parity calculation with snapraid. ZFS is pretty good about figuring that out all on its own. 0. Jan 17, 2019 · I know this is an old thread but my question relates similarly (besides updated software). Aug 31, 2016 · This would pool all mounts in /mnt/data and present them at /storage. I am thinking of moving to linux as I am very impressed with possibilities mergerfs opens up. But it does work best when you can architect your storage for the lifetime of the pool. From my limited understanding it appears I would have the ability to prevent/fix file integrity errors. truenas scale界面. You can use the -p, --plan option to specify a different amount, and the -o, --older We would like to show you a description here but the site won’t allow us. Each drive can run ext4 that many are comfortable with. I had good luck with storage spaces tiers and REFS. With ZFS you get also transparent file compression, can benefit from snapshots (data protection) and get self-healing even in this setup since ZFS always provides data integrity through checksumming (with classic RAID you get this only with parity modes, so either crappy Feb 19, 2024 · So, let's dig in and get you a data pool created that we will protect against a drive failing with SnapRaid. SnapRAID is targeted toward home media centers, with a lot of large files that rarely change. content content /mnt/disk2/snapraid. I want my data to be protected by SnapRAID and simplify the storage management across the SnapRAID disks array via MergeFS. Today, we explain and install Snapraid and Unionfs which give us advanced features to backup our array and efficiently use our disk space. not as many drives spinning up on file access, partial protection from multiple drive failures), but I am also concerned about the reliability of Drivepool/Snapraid (compared to hardware RAID). simply using StableBit DrivePool to do duplication on it's own. A storage pool is a collection of **devices** that provides physical storage and data replication for ZFS datasets. After reading about mergeFS and snapRAID by u/Ironicbadger, I am starting to reconsider my choice and thinking about moving to the mergeFS snapRAID combo. He&rsquo;s written about it a few times as the &ldquo;Perfect Media Server&rdquo; solution. ZFS is my main pool on NAS, mergeFS + snapraid more like backup. net/compare. . EXT4: mergeFS + snapraid = (14 + 14 data/content) + 14 parity And each day I have scheduled job with scripts for snapraid sync/scrub/diff/fix And each day all data from ZFS sync with data on mergeFS by rsync command. Fifthly, ZFS and BTRFS are true software RAID managers. See The 'Hidden' Cost of Using ZFS for Your Home NAS. - ZFS is also available in Linux at kernel level using ZFS on Linux. I use mailgun for this, their free account should get you Also, OpenMediaVault has ZFS support via plugin; I'm running a 5x5TB RAIDZ1 and a 2x2TB ZFS Mirror on mine right now. Jun 7, 2020 · 首先来介绍一下这两个软件，SnapRAID 和 MergerFS，不同于其他现有的 NAS 系统，可以把 OpenMediaVault 看成一个简单的带有 Web UI 的 Linux 系统，他使用最基本的文件系统，没有 ZFS 的实时文件冗余，所以需要 SnapRAID 提供的冗余来保护硬盘数据安全。 This thread is very pro ZFS and I thought it may be worth some alternative perspective. 04 LTS) Problem: Hard to upgrade the storage, adding new or replacing disks is not plug’n’play. Jan 2, 2017 · Both snapraid and zfs can scale as large as you want, the beauty of both is that they are very flexible about hardware upgrades. moving from lubuntu with mergerfs and snapraid. Repeat this until all data disks are added. - ZFS allows to add a new vdev at the pool, but not a disk to a vdev. 2-1 on the latest Armbian 21. In this regards all the three solutions represent the state-of-the-art. content content /mnt/disk1/snapraid. This got me thinking about changing my setup and I've been reading about zfs, btrfs… Okay, but LXC in Proxmox (could) be different. Both allow you to mix and match drives, you will need to reserve the largest drive for Parity use (4TB in this Sep 20, 2021 · ZFS features (snapshots, self-healing, RAIDZ, dRAID, etc. N100 is a playfull cpu with multimediale futures, 32gb is now supported and is enough for me. 5 inch Laptop SATA HDD's 1TB each for Data, SnapRaid with MergerFS plugin, Kingston USB-3 Data Traveler Exodia DTX/32 GB Pen Drive for Root/OS, 128GB SATA SSD for use by DOCKER and spare 128 GB PCIE Then I spent the past two days reading about ZFS. Snapraid sits on top of a filesystem, in my case EXT4, and creates an inventory and a parity file for the files according to it's configuration. However, in almost every other respect are totally different. Before that I was on Unraid (dead and decommisionned) and even before I was running OpenSolaris with ZFS (back before the Thailand floods, and when OpenSolaris/Illumio was still a thing. Safe from corruption or non user induced data loss. I've kinda set-it-and-forgot-it due to a lot of crazy world life stuff, but I believe it's DESCRIPTION The zpool command configures ZFS storage pools. If windows is not your flavor, Truenas with lots of RAM and ZFS l2 SSD cache will do good too, slower main storage pool. 2-2 (Sandworm) on ASROCK B560M-ITX/ac Motherboard, 16GB DDR4 RAM, Intel Pentium Gold 6405 CPU, Silverstone ECS06 6 Ports SATA Gen3x2 (6Gbps) Non-RAID PCI-e card, 7(2Parity+5Data) Toshiba 2. - Offer redundancy for data reconstruction in case of drive failure. You can use the -p, --plan option to specify a different amount, and the -o, --older It would be your job to utilize your snapraid parity to achieve it. I would want to avoid BTRFS and ZFS. So until recovered, the data is not available. - ZFS has external GUIs, like Napp-it and plugins for FreeNAS and NAS4Free. Backup through cronjob using rsync to NAS - not real incremental (using rsync replace if newer). If you have large changes to files then you end up at ZFS as the most common choice for roll your own storage. 2V ECC Intel Xeon E5-2658 V3 (12 core/24 thread) Supermicro SC826E16 Chassis I hardly EVER use over 12Gb of ram. That's why there's no fsck/chkdsk for ZFS. Oct 31, 2021 · Configure SnapRAID. The idea of spanning a file system over multiple physical drives does not appeal to me. So, I have backup - the same data on ZFS and mergeFS + snapraid. However, SnapRAID works well in similar environments were data stores are largely static. 22 data disks. com/guide/pros-and-cons-of- Hi, I am currently using windows, drivepool and snapraid for 8*8TB HDDs plus 2 SSDs (total 500GB) for drivepool cache. When looking at tutorials it seems disks needs partitions, while the Proxmox host system disks have partitions, the LXC will JUST have a folder mounted inside it. News! Version 12. Do you want just built storage or do you want bitrot protection. My plan: 3x14TB hdd usb disk 2 used as data tanks and one for parity using SNAPRAID synching every hour Err what? They don't do the same thing or even close to the same thing. ZFS is also possibly overkill for home audio/video where the data isn't critical, but nice to have (you can always rip the DVD/CD/Bluray again but you can't take that photo again). net/pricing?via=nascomparesThe Pros and Cons of UnRAID - https://nascompares. I’m sure there are other nerdy Linux reasons they started in on it, don’t at me. I haven't 100% ruled it out because ZFS looks very attractive. So my solution seemed to be Unraid or Snapraid. ZFS gets by fine on 2 GB RAM installs on laptops or workstations. Then do a verified copy to the Snapraid/MergerFs system. May 10, 2024 · As you may be able to see, the above shows the type of connection, in this case SATA, the Manufacturer of the disk, the part number of the disk, the serial number of the disk, and the partition we are using from the disk. So I'm thinking of switching to Snapraid to MergerFS with the following settings: *ff (first found): This way, MergerFS would go through my disks sequentially until they run out of space -- and only ONE HDD needs to be spun up when I'm writing. Now go to Download. 8). Then you can zfs send your important datasets to it on a regular schedule, maybe daily if it is always hooked up or weekly if it isn't? Fourthly, ZFS does not need tons of RAM, unless you're using deduplication, or a large L2ARC filled to capacity. Given that current roadmap, I’d recommend going with a RAIDZ2 and enough extra space to get you buy for a while, in the hopes that VDEV expansion happens before you need to add another drive. 1 on Debian 10 @ HP Microserver gen8 [2x 256GB SSD ZFS mirror on root + 3x 8TB ZFS raidz1 pool] Mar 14, 2016 · My plan is to test out a new storage server setup that consists of an Ubuntu Server 20. I decided against ZFS because the expendability problem was well a problem. html ZFS (FreeNAS/NAS4Free/etc) vs SnapRAID vs unRAID vs FlexRAID vs disParity vs ZFS vs Windows 8 Storage Spaces Oct 6, 2013 · 5. A cons of ZFS is that the default Fletcher checksum is a choice that favorites speed over quality. No partition table. The OS doesn't change anything. - ZFS and Btrfs provide a bit-rot protection at the same level of SnapRAID, always checking data before using it. This approach ensures that any post-sync modifications or deletions won’t disrupt the system’s restoration ability to its original state. Some links for reading on pooling vs ZFS: This was my fear. Either way, I’ve been using ZFS since it was new, it’s amazing, and I don’t like trusting any data over a few GB to anything else. E. 1 in a Proxmox VM with H310 mini passed through. The two main options that I'm trying to chose between are ZFS mirrors and BTRFS+Mergerfs+Snapraid (w/btrfs-snapraid wrapper) (B+M+S). First configure data disks. It is also helpful to find out which data is lost. There is no need to pay for Unraid Pro. Technically, mergerfs doesn't actually store anything. How risky is this? Aug 2, 2022 · Hey all, i need advice! Current setup: 12TB HDD + 500GB SSH Bcache + SSD for OS (Ubuntu server 18. But this is more difficult, than with ZFS. From the same server, I run 24 drives ZFS in SMB to serve as main NAS and 24 drives SnapRaid mixed with every old drives for everything else. Just install mergerfs also a plugin to complement SnapRaid. this is enterprise grade solution with all kinds of design considerations. ) snapraid, mergerfs mount setting and whatever your script needs. Mergefs + SnapRaid: Plug n Play filesystem great for NAS servers What makes me nervous about the "Mergefs + SnapRAID" setup is that the PerfectHomeServer guide, says that this should be done for data, which is disposable, while ZFS should be used for irreplaceable data. Oct 1, 2020 · hi all. Run snapraid check in OMV to verify that the data is ok. Specifically, zfs can do raidz levels reliably as compared to btrfs. May 13, 2023 · Here’s something funny: I got my hardware a little over 2 weeks ago. SnapRAID is for providing redundancy like a raid and mergerfs is just to allow arbitrary pooling. 7x WD 8TB - SnapRAID Data/Content (pooled with MergerFS, 55. Now your Data is safe. 21-rockchip64. g. Prior to implementation I did a fairly comprehensive pros and cons analysis of snapraid+zfs near-time parity vs. Snapraid could also work on top of ZFS and do it's job. I send a snapshot of critical datasets daily to ensure I always have offsite backup. Jan 2, 2024 · HI Folks, I recently lost quite a bit of data (my fault and unimportant files thankfully) and snapraid wasnt able to recover much of it as it spanned multiple drives. Dec 7, 2022 · Got a bunch of spare drives and want a single volume with some redundancy? I take a look at 4 different software RAID solutions and compare the speed, usage Aug 24, 2020 · You can use snapshots on each disk/subvolume but SnapRAID will only operate on the main filesystem. Dec 11, 2022 · OMV 7. ZFS is designed to repair corruption and isn't designed to handle corruption that you can't correct. Run snapraid sync to re-sync with the new drive. Show modified files: If you add or delete files after the last sync, you can click on "Diff" to see the deleted, added or moved files. SnapRAID stores data parity information which enables the recovery of disk failures. I have not considered BTRFS, as I want to run something which is similar to Unraid/Snapraid's parity ratio. This system is extremely over kill for what it's needed for but it's a hobby i'll admit. ) Know software products that already leverage ZFS technology ZFS best practices and what developments to expect in the future Jan 11, 2013 · http://snapraid. Today I have at last reached the point where the drives are ready to be graced by the application of a filesystem. This makes something like ZFS or Btrfs overkill for my setup, so the two solutions that I looked at were Unraid and a custom SnapRAID + mergerfs setup. It’s independent drives with one (or more) parity drives. That way if you delete files they're still in the snapshot until the Format the ZFS disk to XFS Set up mergerFS for all of the disks Rename the mergerFS pool (dunno if this is the correct term) to the same name the ZFS was Move data back from the 16TB to the other disks Set up SnapRAID with the 16TB disk as parity ensuring a pretty good upgrade path in the future So. Also, Unraid doesn't stripe files, which for me is a huge plus. Truenas / zfs is more robust though in my experience Mdadm vs ZFS on Ubuntu 18. Using SnapRAID allows me to use how many parity drives that I see fit, in addition to having the ability to add one drive at a Get yourself an UnRAID License HERE - https://unraid. Jun 11, 2003 · ZFS is the current "best of all" filesystems with unique features. So once you're at the point that ZFS' file structure is corrupted and you can't repair it because you have no redundancy, you are probably going to lose the pool(and the system will probably kernel Mar 11, 2014 · zfs and snapraid are extremely different. It will be faster with lots of ram. And ZFS on none ECC memory is the same. zfs does everything "on write" while snapraid does everything when you run it (snapraid sync) zfs has many many many more features (encryption, snapshots, clones, etc, etc) but can't take out one freakin disk you added by mistake (in snapraid all disks are independent) zfs is insanely complicated (both good and bad). conf ; abort operation if there are more deletes than this, set to -1 to disable deletethreshold = -1 ; if you want touch to be ran each time touch = false [logging] ; logfile to write May 21, 2023 · ZFS is better, but it's also a RC implementation in unraid, so at this point, you may run into caveats still showing up in RC threads. A benefit that I thought was only available to users on BTRFS or ZFS! Aside from the ability to scrub, I am still a bit unclear on the benefits of SnapRAID (or it's risks) vs. content content /mnt/disk3/snapraid. 3 Buster with Linux 5. I keep getting SnapRaid and unraid mixed up. You can limit it to the replaced drive with snapraid check -a -d DISK_NAME. Dec 30, 2023 · I started from i5 2013 nuc, after changing 3 nuc i decided to build with a jonsbo n2 and 3x14tb disk a new macchine 2tb Ssd to use as cache for zfs. or SnapRaid, (Free). Pro tip: set your pool to the highest compression level (gzip9, usually) during the initial data fill. /bin/snapraid) executable = /usr/bin/snapraid ; path to the snapraid config to be used config = /etc/snapraid. I am curious if there are any benefits to using a COW filesystem such as ZFS or BTRFS instead of ext4? To my knowledge, using ZFS at least (unsure about btrfs), would provide built-in checksumming of the data. Only problem is that you cannot use snapraid pooling features over ZFS pools unless you use FTP, AFP or Samba (With ZFS and Solaris sharing of NFS and CIFS is a ZFS filesystem property). To access a file, only a single disk needs to spin, saving power and reducing noise. Just because the software / GUI sets "good enough" defaults. RAID1 is good for system drives, because it's all about high availability. I ran into issues with RAM usage (it eats everything Feb 7, 2024 · The snapraid-btrfs scripts harnesses the snapshot capability of btrfs during operations such as snapraid sync or snapraid scrub, creating read-only snapshots of the btrfs file system on the data disks. ZFS's heightened resource demands could overburden less potent servers. I do share however the slower reads from SnapRaid, and the fact that if I lose more than the number of redundant drives, the vdev is lost and everything is gone. I suspect you can use ZFS on single disks, without parity. Yes, it will use all the RAM you can allocate for it, but this isn't a bad thing, and it's tunable. Apr 22, 2024 · SnapRAID is a backup program for JBOD disk arrays. One of the hosts, Alex, is a huge fan of MergerFS. Current Drive Configuration. Another price bracket as well but that would be the only way I'd implement RAID6. Then configure SnapRaid to "magically" back your drives up in the background so you can worry or even tinker with some of the other cool apps that have been reviewed on Noted. 6) in the mix on OMV 5 with MergerFS (via openmediavault-unionfilesystems 5. Using zfs duplication seems a weird approach to adding more complexity to a simple and effective tool ? I would suggest just using ext4 and snapraid with mergerfs in a well tried and tested approach which provides bitrot protection and since you don't need any of the zfs features removes unnecessary complexity ? Btrfs was/is an attempt to copy ZFS to Linux, from back in the day when ZFS was Solaris only, then BSD added it, then Linux came along. My backup 'server' is a Raspberry Pi 4 at my son's house. so 3 data/content drives and 1 for recovery. ZFS has a great history and an even brighter future. In OpenMediaVault control panel: Navigate to Services > SnapRAID. It seems like Snapraid has some theoretical advantages over RAID-5 (e. Well, I consider all my data irreplaceable, also my media library!! Feb 22, 2024 · Some more don't hurt # They can be in the disks used for data, parity or boot, # but each file must be in a different disk # Format: "content FILE" content /var/snapraid. Apr 25, 2019 · Run snapraid fix in OMV to fix the drive (regenerates the data from the failed drive, which will take a while). snapraid status. While I am still considering OMV I am also considering Debian with SnapRAID/MergerFS and TrueNAS. Note that by default snapraid-runner is set to run via cron at 00. May 5, 2013 · Hi, I'm really intrigued by SnapRAID's features compared to ZFS for large static files: only one drive spinning, minimized data loss beyond the failure of all parity drives, can add one drive at a time, etc. I think I'm gonna stick with SnapRAID for two reasons: On a resilver, zfs walks the entire B-tree of the pool, resulting in a lot of random accesses, which are slow compared to sequential reads (on HDDs). I forgot to mention another possibility: ZFS in RAIDZ1 configuration. Click on Add. With ZFS you more or less only need to know about ZFS. Nov 28, 2019 · This is a very common situation with OMV and many people are using mergerfs (unionfilesystem plugin) and snapraid. ZFS is tried and true and you know you can count on it. Both options: - Offer bit rot detection and correction. Both work well for detecting and correcting Bitrot. Not EXT / XFS settings, lvm (pvs, vgs etc. Here a little bit more info, i want to backup my Zfs NAS onto a backup server using borg backup. Yes, ZFS on ECC and straight access to the diaks does provide additional "protections" or safe guards. Current Setup. content content /mnt/disk4/snapraid. kgvb wogumcv flnhb str hnxy kjzm rxsmyo irnftf tkkf bhd