Unraid zfs cache size. Why? I wanted to try it out bo other reason.

Unraid zfs cache size Adding drives as needed with expansion. 12 So I have set up a small zpool with 4 drivers as well as a standalone zfs drive for "disk1" and a single cache drive, created shares and exported with SMB, and I also installed docker and i Apr 10, 2022 · The ZFS Master plugin provides information and control over the ZFS Pools in your Unraid Server. This worked pretty well. May 4, 2024 · May just be slow devices, BX500 is the low end model from Crucial, they cannot sustain high speed writes, MX500 are much better, but you can try ZFS to see if there's any difference. In that case, two videos have been created for a step-by-step guide through upgrading your Unraid cache pool to either a larger drive or just reformatting the one you have to a ZFS file system - all without losing a single byte of data! Zfs can be used as single drives in the array too so you can use the file system while mixing and matching drives but for speed benefits you need to be using the same size drives in a cache pool - source see the dev thread Sep 20, 2015 · Today I released in collaboration with @steini84 a update from the ZFS plugin (v2. So until 6. If the original cache is xfs, you have to clear the drive, format the drive and create a new cache pool. 12, planning to use zfs instead of the brtfs cache pool for my cctv and temp download pools, I might even move and expand my docker/appdata/vm ssds to it), but I think your main storage should be the main array. 4 Number of name Unraid itself will warn you when you have multiple profiles which is the biggest hurdle that people get burned by when it comes to Btrfs RAID, and if you end up causing it to be mounted degraded (like if you remove a disk from a cache pool, or if a disk fails), unraid will typically trigger a rebalance to ensure it's managed as close to The Prototype Test Box for the Gamers Nexus Server. 2 there have been signifant performance updates to btrfs. Worst thing is, if you try to copy a file bigger than 200 GB, it will start copying until it hits the minimum free size on your cache disk, then the copy will just fail. I understand ZFS is new to Unraid and therefore unreliable. 0TB. Setup two cache pools one for appdata/container data and a second pool for downloads. 0 and had switched my cache pool (2x2TB SSDs) to ZFS (mirrored). My setup will be: Cache Pools: 2x 2TB NVME for Appdata and VMs (mirrored) 2x 2TB NVME for Cache Array Pool: 5x 22TB HDD (using XFS) My question is: should I use ZFS for the cache pools or no? Curious what you guys are using. Es geht schlicht um die Frage, ob ein RAID5 Cache Verbund mehr bringt - im Verhältnis zum Aufwand als ein RAID1 - und welche _SATA_ SSD man zweckmäßigerweise nimmt. Maximum 60MB/s. Feb 26, 2023 · Moin, ich habe heute einen neuen Unraid Server aufgesetzt. After doing that, Unraid screwed up and would not start the array due to an 'invalid config'. Nov 6, 2022 · Typical way to change disks in your cache drive (single or pool) has been to: 1. I have snapshots run every day in my cache drive and to a ZFS disk in my array and then rsync to a remote server that has a ZFS pool. Will be moved to the array Questions: Is this a good cache setup or should I change anything? The size of the ARC can be adjusted by setting the zfs_arc_max parameter, which defines the upper limit of memory that ARC can consume. change all shares to cache=yes 4. I think most Unraid users are switching from btrfs to zfs for their cache pools due to the increased stability/performance and the fact that you can utilize parity raid whereas btrfs only officially supported raid 0 and raid 1. so I'm holding off for now. 12 is only for cache pools, you cannot create zpools in the main array. worked good at beginning and also take some snapshots. The only way it is worth it is you could have a single disk received ZfS replications from another zfs pool. However, spin down also does apply in this case, too, after a set duration with no activity happening. We are splitting full ZFS implementation across two Unraid OS releases. , SSDs and HDDs) to add tiered caching on top of zfs. 7T 1% /mnt/disk1 Unraid doesn't use df, but probably gets the stats form the same place, so it's some issue with Linux and XFS, is it possible for you to try without hardlinks to see if you see the same? Jun 16, 2023 · Hi, since I am new to Unraid I jumped straight into running ZFS that I setup ona late rc build and now 6. No speed benefit as far as I can tell as its Recently upgraded my cache pool to zfs, 3x500gb nvme in raidz for 1tb usable. But what you can do is create a cache pool using a zfs pool, similar to what you can do with btrfs now. x and upgraded in 7-RC2. ) With unraid 6. 5. IIRC Unraid will use the RAID Level 1 by default, which means that it will try to add a mirrored RAID for that cache drive. Another great video - thank you! I was curious how you would go about upgrading a 2 drive mirrored ZFS cache pool to a 3 drive raidz pool. Jun 23, 2023 · Hey Unraid community, I recently upgraded to 6. back onto the cache. Zfs just makes good use of it Been using zfs for many years, before it was officially supported in unraid. Looking forward to having this in the gui. ) seperate the load, 1st 980 dedicated to VM, Docker 2nd 980 as array cache for *Arrs downloads Sep 20, 2023 · the screen going blank after a certain time while booting is a nvidia thing and uefi boot. Has anyone done research into determining the optimal cache size? I recently increased my server RAM from 32GB to 64TB and my ZFS cache Jul 3, 2023 · Is there a way to set the arc cache size manually? I am running 128gb of ram in my server, with mirrored 1tb cache drives but it seems like the system is limiting the zfs arc cache to 16gb. 83 GB and is pretty much always full. Dabei ist es egal ob das verschieben der Files über SMB oder SSH geschieht bzw krusader docker. Btw, I am on 6. Dec 17, 2022 · Funktioniert dies nur ohne zfs ? Hat jemand Erfahrung mit zfs cache ? Habe zwei gleichgroße SSDs meinem ZFS Pool hinzugefügt. My server really is only a NAS, so I want to give ZFS as much RAM as I can. When you have dedupe enabled it additionally needs to cache the DDT. The server will be in the dockers on Cache 1 Cache 3: 1x1TB SATA SSD - Used for downloads. In addition you may format any data device in the unRAID array with a single-device ZFS file system. I was using btrfs for my cache drives, but there is apparently a long standing bug with the btrfs file system and cache pools. 8 GiB) I have multiple Dockers (Not been a issue before adding new VM's) My VM's 2 x Windows 10 = 6144 MB = 12G 1 x pfSense = 3072 MB = 3G 1 x Hassio = 2048 MB = 2G 1 x Xpenology = 8192 MB = 8G Total: 25G Docker 38% of 62. 3 - average 50-60 MB/s, peak reported 101 MB/s* So generally speaking, a server with a cache drive has write speeds 2-3x faster than the same server without a cache drive. You see, not all Ubuntu or Debian servers need aggressive file caching. for snapshot information Cache in size when you edit or Just be aware cache in unraid isnt cache its unique data, its more of storage tiering. I can see that there is still 300GB being used on the cache, which is what was being used before. i keep my media and personal files on the zfs array, their data never goes to the cache pool the xfs pool drive is used just as a temp share, mostly not used for anything (only exists for i can start unraid array) Cache 1: 1x1TB NVMe M. Zfs cache pool would need the same size drives or be limited to the smallest drive. Currently I'm using btrfs as filesystem and it is working with no issues at all. Well you can then ensure that the block/record sizes for your chosen DB's fileset match up with the page size of that database, specify what kind of data within that fileset will be cached, and how that cache operates to best squeeze every drop of performance your storage is capable of providing that database. 12. The reason for getting unraid is that it is not zfs. Even, as you can see in this screenshot, when I copy from SSD to SSD. If I have a setup where I am solely concerned about storage for Plex media, in this specific case a DAS that can hold up to 18 drives, where I’m not yet occupying all 18 (4 to start), then using the unraid array feature with a parity drive and my nvme 4tb x 2 Pool as Cache—- BRTFS or XFS should Jul 6, 2023 · So here is the story. The full process I did was I had a ZFS pool with one 512GB drive in it. Without dedupe, the ARC is caching ZFS metadata and data inside your pools. ) Don't even need t power down the server until the new replacement for the cache drive arrives. 3% overhead, so my average block size is markedly bigger than the worst case scenario. Show Me The Gamers Nexus Stuff I want to do this ZFS on Unraid You are in for an adventure let me tell you. Update: Oct 20, 2024 · root@box:~# fdisk -l /dev/sdi Disk /dev/sdi: 1. On my system, assuming I'm looking at the right thing (L2ARC header size under arc_summary), ~110GB of L2 arc is using ~350MB of RAM. More info: Apr 3, 2023 · This is not directly an Unraid problem since df reports the same: Filesystem Size Used Avail Use% Mounted on /dev/md1 3. Normalerweise (früher) hat Unraid einfach den Pfad der Datei geändert beim verschieben. Sounds like you are expecting to use the total capacity of all drives in cache, which would require raid0 (if all are the same size) or single mode if different sizes in the pool. 2) has two 10TB parity disks and 22x6,8 and 10TB XFS disks for the array I used two 1TB SSD in BTRFS RAID1 and two 4TB Spinners as a secondary pool called download-cache using BTRFS I also have 2 USB3 4TB drives attached with unassigned devices I want Oct 15, 2009 · cache_dirs is a script to attempt to keep directory entries in memory to prevent disks from spinning up just to get a directory listing. OK, so on the unraid manual, under cache pool operations, it states that the cache pool is raid 1. Once you enable Dedupe and L2ARC you needs lots of RAM (rule of thumb is about 1GB of RAM per TB of storage) 2. 12 is released, I have 1 cache drive for appdata that is btrfs and 1 for downloads that is xfs. In the command line everything Setup a single cache pool with all data types with the mover configured for specific shares. Jan 27, 2024 · I currently have 2x500 GB nvme drives for my unraid cache is zfs. Hybrid Approach ZFS-formatted disks within the Unraid array Pros: This strategy combines Unraid's array flexibility, allowing for easy capacity expansion, and ZFS's advanced features, such as data Jul 12, 2023 · Hi, I have a ZFS pool of 12 disks running RAIDZ1 with 2 groups of 6 devices configuration. d/zfs. 9. Sep 24, 2009 · (un-assign it as cache, re-assign it as replacement for whatever drive failed. This is not possible, the zfs support added in 6. Thought the problem with zfs and unraid is that those are two completely different file systems and incompatible. During system boot, the file /etc/modprobe. at the end i was formatting my cache again, going back to btrfs, luckily have had Jan 12, 2024 · I have found that btrfs from /mnt/cache is reporting 653 GiB, which matches the Unraid GUI at 702GB when converting from GiB to GB. 82 TiB, 2000398934016 bytes, 3907029168 sectors Disk model: CT2000MX500SSD1 Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x00000000 Device Boot Start End Sectors Mar 15, 2024 · Hello, i have a cache pool set up with only one device. A ZFS pool is more like RAID 5 or 6, with parity and data shared across all the drives. More posts you may Apr 3, 2024 · In the process of doing this now, thank you! Also I just looked at this and thought about using the cache to store new plex media and then have it move over to my main ZFS pool. I was wondering if it was faster to just all the 2 new Dec 31, 2023 · Another disk was then disabled so I removed that one too. Things were running well until yesterday, the system took a hard cras Kinda, The unraid btrfs cache pool is used for unraid docker/vm default shares, they don't work on the zfs array drives. You can change this, but not currently through the GUI - you add a config file. Running in safemode sometimes work. Zum Schluss hatte ich nach den Video Tutorials von den Geekfreaks und Spaceinvader one auch noch ein ZFS RaidZ1 aufgesetzt. Never lost all my data. work, the entire pool's disks need to be spun up when writing and reading data from it. it probably just shows a blinking curser in the top left. Das verlief weitgehend ohne Störungen. Jul 24, 2023 · Harnessing the Power of ZFS on Unraid. Jan 18, 2021 · liefern - das Unraid ohne Cache genau dafür nicht prädestiniert ist, ist mir schon klar. Think of a ZFS array as similar to any other Unraid array, with as many drives of any size as you like and a set parity drive or drives, where you can choose what to put on each drive. Initial support in this release includes: ZFS pools typically necessitate all disks spinning while in use, leading to increased power consumption compared to a regular Unraid array. It used to be used exclusively as write cache but that is archaic. Jun 23, 2023 · I upgraded to Unraid 6. If you go unRAID, putting down quite a lot of money, you do it for the array. The system will serve as a media server/data backup and possibly run vm's and dockers. Those being that btrfs RAID-0 can be setup for the cache pool, but those settings are not saved and "revert" back to the default RAID-1 after a r Without a cache drive: Unraid 4. Making the switch is worth considering, and this guide focuses on helping you reformat your existing Unraid disks to ZFS without losing any data or breaking Parity. I am currently using xfs on unraid array, zfs on unraid pool, btrfs on synology, zfs on trunas scale. I purchased two 1 TB drives to replace them. The unraid array will use zfs as single disks so not have any of the self healing abilities so not really worth it. ZFS on Linux is great, and finally mostly mature. Sep 20, 2015 · When other applications or the operating system demand more memory, ZFS will dynamically reduce the size of the ARC. 2 - Used for appdata/dockers/vms. Here you can see how the ARC is using half of my desktop's memory: root@host:~# free -g total used free shared buffers cached Mem: 62 56 6 1 1 5 -/+ buffers/cache: 49 13 Swap: 7 0 7 root@host:~# arc_summary. And I prefer to use mc and not console. Mar 30, 2023 · I want to delete the now empty folders created from unraid because this pool is used as cache. May 6, 2023 · Also, I do find it humorous that soon after I started testing raid cache pools ZFS was officially supported by Unraid. I know about the new config option, but that messes with the main arrays parity even if set to exclude those disks. Any size drives add on anytime, plus only 1 drive spin up during read is a master piece of unraid. Jul 24, 2023 · ZFS can handle a vast amount of data while protecting against data corruption, allowing for snapshots, compression, and replication. More posts you may like r/unRAID. I would like to stay with ZFS beca Nov 20, 2015 · 1. You can even shop for a sale price, since you could live without the cache drive for a week or two. The 2TB of a btrfs formatted cache is added correctly to the size of the share. disable docker 3. -single zfs formatted drives in the unraid array works just like xfs drives, parity work as normal etc, but you can use snapshots, compression, ram-cache (arc-cache), zfs-send (basically copy an entire disk or share/dataset to another zfs drive, even on another server), scrub to check for errors etc. I run plex on unraid and have all my appdata in my cache pool (which is only 1 2tb ssd). Some servers act as a web server or run Linux container workloads or KVM guest VMs where you want those guest VMs to manage their own caching. For me, that is the wrong question. Dec 12, 2022 · Mahlzeit, so da mein Setup jetzt hardwareseitig so ziemlich steht, mal die Frage an die Experten hier zur Einteilung der Speichergeräte. The cache will be a single 1 x 1tb SSD. If the ram bothers you, lower the ARC size. 11. Zfs. To clear the drive, set all the shares currently using the cache to cache:yes, stop the VM and docker service and invoke the mover. But as it is, dumping 20TB+ somewhere to change file systems is a pain. However, due to how ZFS mirrors, raid z1, raid z2, etc. The Linux kernel keeps the most recently accessed disk buffers and directories in memory, and flushes out the least recently accessed entries. Yes. Checking with netdata, the ZFS ARC Size is set to 7. In general if you dont know why you would want ZFS on your drives you probably don't need it. I've actually last my cache last time I was using btrfs and tried to get it mirrored with another drive. I’m new to Unraid, currently building my Unraid server, waiting for the HDDs to arrive. conf is auto-generated to limit the ZFS ARC to 1/8 of installed memory. 0-rc6 ZFS Memory Utilization? The cache pool currently says 788MB used of 1. Well using zfs is more reliable and faster because it can also use system ram for commonly used items in cache. What am I doing wrong? Feb 11, 2024 · Hello everyone, I have the following problem: All copy or write operations to and from the encrypted formatted ZFS cache pool are incredibly slow. Supposedly unraid 6. So whatever the issue is, it seems related to ZFS. 7T 26G 3. You can format a single drive in your unRaid array as ZFS, but there's not really much benefit in that. I assume by default unraid sets the zfs cache size to 8 gigs somewhere in the config? Is there a way to increase this? Nov 5, 2023 · I installed 64 gigs DDR5 RAM to support ZFS, but it seems to be barely using my RAM. Mar 16, 2024 · Ich will ein File verschieben von Ordner A in Ordner B. 5 stable and BTRFS Cache it worked that way. Did I read correctly that the ability to move from cache to ZFS pool is coming in 6. e. Disable VM 2. So cache is the perfect "home". spaceinvader has some really great zfs cache snapshot guides on YouTube. Other than that, there is no "pulling" data "that's not in the cache yet". I have 4 drives in my cache (500, 500, 1000, 2000; Raid1 config) and mine shows 2TB available but the used/free never add up to 2TB. Why? I wanted to try it out bo other reason. It thought there should be 30 disks not 20. I have Mover running hourly. At one point I added a mirror device to the pool, mirrored the data and then removed the old device since it was smaller than the new one. I killed a zombie container process accessing /dev/loop2, but still cannot detach /dev/loop2 and still stuck trying to unmount. Everything was fine for a couple days but I just attempted to upgrade to 6. Sep 20, 2015 · i need to limit zfs ARC-cache size root@unRaid:~# zfs list NAME USED AVAIL REFER MOUNTPOINT zfspool 127G 322G 127G /mnt/zfspool to add Oct 11, 2020 · Hi All I have 64 Gigs of RAM (Useable 62. 0 "fast pools" is basically RAID pool. As of Linux kernel 6. 8G = 24G Left = 13G The Load: TOP: Apr 28, 2020 · I think the docker image on /mnt/cache that's mounted on /dev/loop2 is preventing the unmount. (and yes, I do try to kill the folder from the pool directly and not from the usershare (which would include the same names folders on the Array). 0) to modernize the plugin and switch from unRAID version detection to Kernel version detection and a general overhaul from the plugin. Suppose you have decided you want to use ZFS on your Unraid server. I imagine the majority of users will keep their array as xfs due to the ease of adding additional drives vs zfs. Look, I Apr 18, 2016 · ZFS. Add the new drive to the cache pool. I've then tried to copy a file from an SSD to the cache. Thanks. Unmapped shares refuse to open at all unless the share is set to not use cache. Per the Unraid notes, ZFS is only allocated 1/8 or your RAM. conf on Linux or /boot/loader. invoke mover, wait for it to finish 5. raid1 is a mirror. Shut down the server and remove the old drive. conf, added "options zfs zfs_arc_max=64000000000" to the file, saved and uploaded to the modprobe. I currently have all my disks as ZFS. Dec 3, 2022 · One way I'd think of ZFS being a worthy addition would be if ZFS was on top of unraid's parity system, and as such you could have one/multiple ZFS pools as part of the array, and do something like having 2,3,4-drive striped ZFS pools (no protection) made of array drives and rely on unraid's parity protection for the drives instead of ZFS's. Der Server besteht im Prinzip aus einem NAS und ein paar VMs. Would this be possible? Here is some relevant data: Crucial P3 4TB: Nvme version: 1. 1 day ago · Setup OS - I am running Unraid 7 (now), but this behavior started under 7-RC2, and the ZFS pool in question was created on Unraid 6. I have cache=yes set on my downloads share, as well as movies and tv shows, along with cache-only set on my webserver VM, Windows VM, and system share. conf on FreeBSD: echo " options zfs zfs_arc_max=8589934592" >> /etc/modprobe. Many topologies, some over 100TB, some 6x NVMe. The web-ui is correctly showing the total size of the array. I've done some research into zfs in unraid but am just wondering if it'll suit my use case. The new drives seem to be 4. Hardware - Samsung NVME 970 Evo Plus m. If your download and appdata are on the same pool, huge I/O writes will lock up your server. My system has been less stable since upgrading to 6. This value is typically set in /etc/modprobe. Today, one of the drive is giving warning offline uncorrectable is 368 current pending sector is 368 Although the disk still showing green light, I want to replace this hard-disk since it is a new disk just Mar 10, 2024 · Pool is correct, but with btrfs the parity size is included in the capacity, used and free space will be correct though, also note that raid5/6 with btrfs is not ready for production, I would recommend using zfs raidz instead. Aug 14, 2023 · I just converted my cache pool to ZFS and when I used the file manager to move my appdata folder to the new ZFS cache pool, the UI says there are 0 bytes used and 0 bytes free. This video is a comprehensive showing showing how to enhance your Unraid setup by either upgrading your cache drive to a larger capacity or switching over to Nov 1, 2024 · To fix it, I need to do a new config, save all drive positions, then go into my 1st cache drive and re-do my zfs mirror (it selects auto by default instead of ZFS Mirror 1vdev of 2). 1 which seemed fine as well but when my server restarted, the array would now be stuck at "Mounting" the Jun 22, 2019 · Hi, Strange question incoming. Mapped shares I can still access but cannot create anything in them. Beide Ordner liegen auf meinem Cache drive (encrypted ZFS Raid 0 Pool). Unraid can do both. I would like to add a second drive to create a mirror, ideally keeping the existing data. -Current pool disk filesystem must already be ZFS I have two different size cache devices, why is the Aug 2, 2023 · It looks like when I have a zfs cache disk that datasets are created for those shares with "cache enabled" so I could set the ZFS quota property bit and force a dataset to have a maximum filesystem size as I want how would unraid handle this? I hope that it would just go to the array once full (until the mover does its thing later on schedule) Dec 16, 2022 · Looks like you have raid1 pool cache, 3x250 = 375 as I already noted And another raid1 pool cache_vms, 2x500 = 500. Sep 7, 2016 · I had looked over some different threads (listed below) that discuss how the cache pool is currently implemented in unRAID and its current limitations. Sep 20, 2015 · It's not really a big deal, I suppose that it's because the folder doesn't exist in unraid, being the whole file system ephemeral and the pools by default does not have the property setted for a cache file, maybe zfs init before the path exist, so it could be very problematic in unraid having the cache file configured for the pools. If you have more RAM it will use more for a cache. Sep 13, 2023 · ZFS vs XFS for my cache drive? I do know that my device array will be XFS as that seems to make the most sense, for me. (link… Aug 2, 2023 · Overview #zfs for #unraid (Create, Expand and Repair ZFS Pool on Unraid) Also, for the sake of clarity, you can spin down a ZFS pool as well in unraid and truenas. When writing to the cache the CPU spikes and the copy process pauses for Hello all, I’ve been using the ZFS cache for a few weeks, and I don’t like the constant writes and heat associated with it. Cache is faster at writes, so if you are running apps/VMs, you don't want them running directly on your protected shares. If I use file manager to calculate the size, it's just under 500GB Cache: - Crucial NVMe SSD 2TB: Cache pool I have my cache pool set up with ZFS format which I assume is the best thing to do (I understand there are pros and cons, but generally this is appropriate) DRAM: - Corsair 32GB CPU: - Intel i-5 12600K Questions: Which of the default Unraid shares should "live" on the cache? I'm new to unraid and am setting up my cache drive to use ZFS, as I want to make use of the features of ZFS such as snapshotting (using spaceinvader one's video as a guide) With this in mind, should the docker settings be set to use a directory or a btrfs/xfs vdisk? Mar 15, 2023 · New in this release is the ability to create a ZFS file system in a user-defined pool. Though I highly suggest backing up these files, CA appdata backup is a great plugin! Cache Size? Completely dependent on what and how you plan to use your cache. They changed the terms in the new O/S to better reflect. Auto creates BTRFS. 1TB SP UD90 Nvme. It seems like this is at least partly an Unraid bug. Apr 14, 2023 · When creating a new ZFS pool you may choose zfs - encrypted, which, like other encrypted volumes, applies device-level encryption via LUKS. The problem is, I am getting really slow write/read speeds from this array, I'd be ditching unraid and going back to Ubuntu server and zfs raidz2. Available ZFS Pools are listed under the "Main/ZFSMaster" tab. Is there a reccomended amount of ram i should set for cache? Currently 2gb out of 16gb installed is set for zfs. That's an interesting way to combine zfs and mergerfs. When mounting the share via SMB on Windows it doesn't include the zfs drives in the size. Those shares work as they should. The only reason I went to unraid is because it allowed me to add drives as needed. I have the main array, a cache pool, then a second pool that I want to remove entirely. Feel like I’ve read enough to make some observations but I’d love to be corrected if wrong. 11+ that is due to come out will finally support zfs, and if it does I will be switching the whole file system. yes ZFS is exactly what unraid isnt and the other way around. 3 recently and found that I also have the same problem with the graphs displaying no info. The overall process of replacing a cache drive looks something like Make sure the cache is setup in RAID1. It can be a backup solution depending on your implementation. I found by disabling the VM manager the graphs work\come back, I am not sure why as I dont even have any VM's set up, seems like a bug but as I dont use VM's I will just leave this disabled for now but thought it was worth mentioning as a google search brought me to a couple of Jul 26, 2023 · I created a dataset on the cache drive for appdata and suddenly my appdata is saying it's 587MB, when previously it was many GB. Gibt es jemand, der Unraid mit zfs + docker + cache betreibt ? Bin noch am testen, bevor ich das System mit oder ohne zfs betreibe. I wanted to add redundancy and also increase the size. r/unRAID Yay I finally If they're different size drives, then don't make a cache pool. d file on my flash. However, when using the compute size of /mnt/cache in either Krusader or qdirstat, I get 440GiB of usage. I first added a 2TB drive as a second drive to the pool (can't remember exactly what I had to choose in the settings but it was straight forward). 0 beta 4 I noticed that the zfs pool was missing the cache disk, without upgrading the zfs pool I created two partition (one for L2ARC and the other for ZIL) on the disk I was using as cache and added back to my zfs pool (only array started). 70K subscribers in the unRAID community. Hi, I'm testing zfs and it has being working great, I had some space left on my nvme and decide to expand the cache (vdd) on my pool from 128G to 256G, I expaded the raw disk (qemu-img resize -f raw vdisk4. so a few weeks ago i setup up my cache drive from btrfs to zfs. change drives However this is a little painful and slow. Now, that probably explains the 180GB pool size. SATA Ports sind entweder Intel C246 oder via LSI im it-Mode. 12-rc2 or above required. Say you set that as your cache drive and set the cache minimum free space to 32 GB. Jun 10, 2023 · Why does Unraid require such a large amount of memory? 100 zfs_metaslab_fragmentation_threshold 70 zfs_metaslab_max_size_cache_sec 3600 zfs_metaslab_mem_limit 25 Dec 16, 2024 · I have a pool of ZFS drives including the cache. If you use ZFS for business reasons, like any server you should use ECC RAM. 6 GB though. Zfs is a nice addition (I still have to upgrade to 6. Jul 3, 2023 · I created a config file named zfs. I'm exploring something similar in this discussion but instead of merging separate pools of old and new drives, the idea would be to merge separate pools of fast and slow drives (i. I see BTRFS and ZFS but not XFS. Also has better bitrot protection Snapshots only help with fat finger scenarios, they are not true backups at hardware level. Dec 15, 2023 · Hi, I made a cache array with 4 x HP EX950 2TB (pcie 3. Sep 20, 2015 · - Configured docker for directory on ZFS, reinstalled my docker apps, tweaked some paths and everything up and running ok - Limited arc size to 2 Gb of memory (sorry need my memory for docker/vm) - Happily rsyncing terrabytes of data back so far so good, but my fingers are getting blue, time to get some GUI, lets do something crazy . Zfs is best for raiding ssd right now. The total drive size and free space is not relayed to the OS and will not allow for applications to function. plain ZFS can run on 1GB of RAM on any size array. Start the array without the old dive in the cache pool. To move the files, I used mover to move them to the array, then adjusted the share settings to move them to the new cache drive that was formatted in ZFS. Oct 22, 2023 · Hello there, in the process of converting my cache pool to zfs encrypted I noticed spikes in CPU usage, while the mover is moving the appdate etc. Ever since I started using ZFS, my array has randomly become unwritable requiring a reboot every time. Apr 10, 2022 · What is ZFS Master? The ZFS Master plugin provides information and control over the ZFS Pools in your Unraid Server. 2 2TB Pool - Currently I have a separate pool called 'apps' with a single NVME SSD formatted with 64 votes, 14 comments. That means the largest single file you can write to a cache enabled share is 200 GB (232 - 32). The Unraid UI shows the correct allocations however SMB will not work on windows. Feb 27, 2024 · There's filesystem corruption on the pool, see if it mounts read-only: zpool import -o readonly=on cache If yes, start the array, GUI will still show the pool unmountable, but the data will be under /mnt/cache, then backup and re-format. 3TB far from 24% of capacity. I have a single 500GB NVME cache drive and I wanted to add a second one but bigger (1TB)and in time move that 500GB drive to my workstation when I upgrade it and then get a second 1TB to the server. I want to change back to XFS and it is not a choice. In that case, two videos have been created for a step-by-step guide through upgrading your Unraid cache pool to either a larger drive or just reformatting the one you have to a ZFS file system - all without losing a single byte of data! Oct 21, 2016 · To build on Michael Kjörling's answer, you can also use arc_summary. Jul 7, 2023 · I am unable to mount my ZFS pool, starting the array in Maintenance mode work. ZFS native encryption is not supported at this time. Aug 21, 2023 · Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x94557592 Device Boot Start End Sectors Size Id Type /dev/nvme0n1p1 2048 1953525167 1953523120 931. I stopped my array after adding my new third device but didn't find any way to exp Recently upgraded my cache pool to zfs, 3x500gb nvme in raidz for 1tb usable. vorhanden sind: 2x NVMe SSD 4x HDD 2x SATA SSD (optional) Das Mainboard ist das GIGABYTE C246M-WU4 Jul 2, 2023 · I've formatted two drives of my array with ZFS by now. ts-p500-diagnostics-20230802-2310. The plan is to start with a 3 x 4tb drive array with 1 x 4tb parity in XFS. Running df -h command shows the size correctly. Cache-yes shares are moved from cache to array when mover runs, and cache-prefer shares are moved array to cache when mover runs. The IOwait is then also high. When I go into the file browser and calculate the size, it's saying 87. Tried 5 different NAS distros. Aug 2, 2023 · It looks like when I have a zfs cache disk that datasets are created for those shares with "cache enabled" so I could set the ZFS quota property bit and force a dataset to have a maximum filesystem size as I want how would unraid handle this? I hope that it would just go to the array once full (until the mover does its thing later on schedule) Yes. No RAID but allow mixed size drives (as long as parity is the largest). There is a BTRFS bug that shows the pool size incorrectly when you have different sized drives in the pool. So the question is, will unRaid play well with 2 different sized ca Feb 15, 2020 · Data is written to cache for cache-yes and cache-prefer shares. You would have to set it to RAID 0 to combine all drives into one "drive". py ----- ZFS Subsystem Report Fri Feb 24 19:44:20 2017 ARC Summary: (HEALTHY) Memory Throttle Count: 0 ARC Misc 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. So I'm giving up ~1% of my ARC to get a ~4. Then start the pool and do a new parity sync which means leaving my array unprotected for 24-36hours. 13 with a zfs pool configured with a cache disk (L2ARC), after the upgrade to 7. img +128G) but I can't find anywhere a command/syntax to expand the zfs partition of this disk. zip Stay informed about all things Unraid by Jan 4, 2025 · I have an existing single disk ZFS cache drive with a 4. Correct me if I'm wrong but this sounds like you are trying to use zfs pools as the main array. This represents is ~0. 5G 83 Linux root@Server-RJPE:~# blkid /dev/nvme0n1 Hello regarding ZFS i want to ask a performance related concern What would be the best cache-pool setup: I have two samsung 980 pro 2tb, should i go with, i prefer to get the most performance and data protection is not the priority a. Wait until it mirrors all the data to the new drive. 3 - average 20-30 MB/s, peak reported 40 MB/s* With a cache drive: Unraid 4. 🤷‍♂️ Unfortunately, during the intermediate time frame before ZFS was officially supported I needed to upgrade one of the NVME drives from 1TB to 4TB which limits my ability to use it in a ZFS pool. Few issues I had was all my fault learning. Jul 24, 2023 · After a power loss, I have not been able to start the array, i have isolated the problem to when the system is trying to mount the "mainzfs" pool and have successfullyu started the array with all drives in "mainzfs" unassigned Jul 14, 2024 · Hi, tomorrow I will be replacing my 500gb WD SN700 cache drive for 1 TB nvme drive. If the data is already on the array, it won't ever go to cache unless it is Using ZFS in the array keeps all the advantages of the array and adds som additional ZFS functionality. 2 in RAID1 - Used for nextcloud server storage. However, do note that a RAID 0 has ABSOLUTELY NO redundancy and if ONE drive of them fails, the whole RAID is gone and everything that is on it. Then, I used the ZFS Master plugin to create datasets over the top, using the exact same names (first AppData, then a child dataset for each docker as required). long story short, had wasted the whole day to figure out if i can save it or not. Specifically, zfs can do raidz levels reliably as compared to btrfs. But unused ram = wasted ram. Aug 2, 2023 · Ive convert my Cache to ZFS and i notice most of the time that its 100% full. Nov 6, 2022 · Store docker/VM files. I am not 100% sure the process but was planning on. . Aug 17, 2024 · W hen working with Ubuntu, Debian Linux, and ZFS, you will run into ZFS cache size problems. Mar 16, 2024 · Im Endeffekt soll es ähnlich wie beim Array funktionieren das ich zwei cache Laufwerke habe und sich die size addiert ohne mich entscheiden zu müssen bei den shares ob ich cache 1 oder cache 2 als primary storage haben will. My current server (6. I use the first approach with a pair of nvmes and set zfs quotas against the media data stores from the cli. It has great performance – very nearly at parity with FreeBSD (and therefor FreeNAS ) in most scenarios – and it’s the one true filesystem. Unraid made a lot of sense for me because I have many drives of different sizes. Will be backed up every night Cache 2 : 2x1TB NVMe M. The "pool" aka "cache pool" or with 6. 0. 0), formatted in ZFS (raidz1, compression on, encryption on), connected dirrectly to Ryzen 9 5900x cpu (pcie x16 -> 4x pcie x4 bifurcation card), 64GB 3200MHz RAM. I use this to send ZFS Snapshots to the Array. Jan 3, 2024 · It seems like unRAID uses 1/8 of your RAM as the size of the cache for ZFS disks. I wonder whether going for ZFS for my new cache drive for small home user worth any potential problems and if any what advantages I would have. I can get the SMB to work on a NTFS drive as shown Dev 1 in the image below. 3. x, but has improved since I changed docker to use ipvlan. I'd 100% go zfs. Danke Edited December 17, 2022 by jURRu12 Jun 15, 2023 · 今天对unraid进行了升级，文件系统准备换zfs,然后到处找资料，看视频。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。 Unraid 6. Top 2% Rank by size . today docker conatiners failed to start, filesystem was corrupted and erros could not been repaired. Oct 26, 2024 · I just upgraded from 6. Jul 19, 2023 · I found the exact moment, when it happens: as soon as ZFS in the Dashboard is nearing 100% it jumps down to about 50% and starts the read accesses on the unraid array (I assume that's ARC-cache and as it fills up it starts clearing old cache, hence re-caching the filetree). I like Ubuntu server a lot better and don't actually like running the os from a USB stick. The only reason I want to use zfs is for snapshots because I do not like how long plex has to stay down to back up my database properly. 1) Backup 2) Pop out one drive and toss in the new 1TB 3) Let it rebuild 4) Pop out the other 500 GB 5) Let it rebuild My question was I currently have a 500gb SSD as my cache. Seems to be working. py. You can't use zfs multi-drive pools in an unraid array. A few notes: -unRAID v6. my guess is many people talking about wanting zfs on unraid arent even aware what that means and just see ZFS being used on many storage systems of large youtubers. conf # Example for 8 GB ARC zfs snapshots have saved my bacon more times that I can count over the years. Aug 15, 2017 · About 24 hours ago I told Radarr to search for 80 movies in either 1080P or 4K and it found about 50 of them, ranging in size from 10 GB to 60 GB. Sometimes I copy large amounts of data at a time to the system, but honestly its smaller amounts of files. A ZFS mirror for rhe cache pool and all my Array fisks are ZFS too. Jul 25, 2020 · No trim on array and write speed is limited with potential (albeit rare) parity errors with SSDs. but now, I’m considering ZFS. 13? Feb 7, 2024 · I'm sorry, I didn't read the 1st post correctly, you cannot expand a zfs raidz pool by adding a single device, this is a zfs limitation, not Unraid, Unraid allows you to expand a raidz pool by adding a new vdev with the same width, in this case you would need to add 3 new disks. 7x (32GB + 118GB) as much cache in total. My unRaid system primarily does the following (in order of usage): Sonarr/Radarr/sabnzbd - amount downloaded varies Hosts file shares - usage greatly varies. dac cuukgr ztwez ypitny rtl jpbzuw sjauaje hgxrgfaeq bgkpg stq