Zfs dnodesize legacy. action: Wait for the resilver to complete.

Zfs dnodesize legacy 04T - master available 7. 9G - main volmode default I am copying them with rsync from an external drive on one computer to my server where the zfs volume is. GitHub Gist: instantly share code, notes, and snippets. 0-1 SPL Version 0. 3 Jan Šenolt, Advanced Operating Systems, April 11th 2019 Advanced FS, ZFS 12 ZFS vs traditional file systems New administrative model 2 commands: zpool(1M) and zfs(1M) Pooled System information Type Version/Name Distribution Name Fedora Distribution Version 36 Kernel Version 6. 3. 6T - tank compressratio 1. nix to enable normal ZFS usage (boot requires more), and `nixos-generate-config` is able to auto-detect zfs pools and create the related entries in your `hardware-configuration. 2, Retired System Admin, Network Engineer, Consultant. . Quote from the Docker ZFS driver docs: The base I've been tinkering with a tool to monitor ZFS usage and statistics for the last few weeks. I used a 32G Hello devs, I was trying to make zfs filesystem in a file and I came up with something weird regarding allocated space on a zpool device. 26T - tank referenced 981G - tank compressratio 1. zfs get all wd_red1 NAME PROPERTY VALUE SOURCE wd_red1 type filesystem - wd_red1 creation Sun Mar 24 21:04 2019 - wd_red1 used 6. 0-1433_g1fac63e56 SPL Version 0. (no way to go higher than 1mb in the drop down). ZFS usually auto mounts its own partitions, so we do not need ZFS partitions in fstab file, unless System information Type Version/Name Distribution Name Manjaro Distribution Version Gellivara 17. This behavior is consistent with other filesystems (e. Arch Install on ZFS EFISTUB Boot. Pool size 50TB on 8x8TB disks Max arc size 65GB L2ARC 1TB nvme Records zfs_scan_legacy (int) A value of 0 indicates that scrubs and resilvers will gather metadata in memory before issuing sequential I/O. If you just want snapshots, use something like BTRFS which is in-kernel unlike ZFS, that way you never have the chance of not being able to boot your system because the kernel and modules don't match. That's all i'm saying. so ~2. The procedure described in Installation guide#Fstab is usually overkill for ZFS. 9 Architecture | Linux x86 64 OpenZFS Version | zfs To build on Michael Kjörling's answer, you can also use arc_summary. Last night the transfer went at full speed and saturated my 1Gbps link at 110MBps. Enable extended attribute storage for POSIX ACLs with zfs set xattr=sa rpool. 40x - tank/pg written 26. 4-1~bpo9+1 Describe the probl ZFS Storage – Multiple mirrored disks (say 16TB) How to tune ARC on Ubuntu/Debian or any Linux distros. Example: # zroot/ROOT/default zroot/ROOT/default / zfs rw,nodev,xattr,posixacl 0 0 # /boot FreeNAS (Legacy Software Releases) FreeNAS Help & support. This not unique to ZFS. You can use genfstab -U -p /mnt >> /mnt/etc/fstab outside of chroot, but this is maybe overkill for ZFS. fc36. For libvirt, edit domain XML. obs. zpool-features — description of ZFS pool features. These are currently limited to powers of two from 1k to 16k. 8G - tank/storj In the end of 2021 I have configured a Proxmox server to run some semi-production VMs in our company. I am looking for recommendations or best practices before I go ahead. My home server is running arch linux for years now and a few years ago I created a zfs zpool using 4 x 4TB disks. x86_64 zfs 2. 37G 67. dev. 0-0ubuntu1~23. 6G - tank/pg logicalused 89. for OpenZFS 2605 Adds ZFS_IOC_RECV_NEW for resumable streams and preserves the legacy ZFS_IOC_RECV user/kernel interface zfs and system version : root@pve1:/main/media# zfs --version zfs-2. 00x - test written 24K - test logicalused Legacy Mount Points. The target size is determined by the MIN versus 1/2^dbuf_cache_shift (1/32nd) of the target ARC size. 0M - installation of manjaro zfs root. I've worked through almost all of them making adjustments only after I understand what and why I'm doing we have a strange effect. > >> > >> Since we were concerned about grub support the zfs command now prohibits > >> users from setting the dnodesize property to a non-legacy value for > >> datasets with the bootfs property set Nginx setup for static large file (100MB-16GB) serving on a CentOs v7. 11-1-MANJARO Architecture x86_64 ZFS Version 0. Saved searches Use saved searches to filter your results more quickly zpool status pool: wdblack state: ONLINE status: One or more devices is currently being resilvered. e: it is your root filesystem). Probably you can use genfstab and opt out automounting zfs datasets archives dnodesize legacy default. 90T - zpool01 logicalused Saved searches Use saved searches to filter your results more quickly ZFS is an advanced filesystem, originally developed and released by Sun Microsystems in 2005. The target size is determined by the MIN versus 1/2^ dbuf_cache_shift (1/32nd) of the target ARC size. 2% of total pool capacity. First, you need to find out your Linux server role and then set up ARC and L2ARC. As a nixpkgs/nixos maintainer, I'm just curious what is driving you away from NixOS as a NAS. To enable a feature on a pool use the zpool upgrade, or set the feature@feature-name property to enabled. 3-1~bpo10+1 SPL Version 2. md This did not work :/ root@server # zfs inherit quota tank/subvol-101-disk-0 'quota' property cannot be inherited use 'zfs set quota=none' to clear use 'zfs inherit -S quota' to revert to received value 1 root@server # zfs set quota=none tank/subvol-101-disk-0 root@server # zfs inherit -S quota tank/subvol-101-disk-0 root@server # zfs list NAME USED AVAIL REFER MOUNTPOINT tank For example, to enable automatically-sized dnodes, run # zfs set dnodesize=auto tank/fish The user can also specify literal values for the dnodesize property. default postgres_data/data sync disabled local postgres_data/data dnodesize legacy default postgres_data/data refcompressratio 1. action: Wait for the resilver to complete. 04 Kernel Version 5. I recently migrated from a Hardware Raid5 to a ZFS based SoftwareRaidz and am very puzzled with the slow read/write speeds. 9G - postgres I have my VMs in a dataset separate from ROOT and USERDATA, mainly because I needed another setting related to dnodesize=legacy, because of send/receive compatibility with FreeBSD. Contribute to openzfs/zfs development by creating an account on GitHub. 9 SPL Version 0. 01x - zfs10-pool/subvol-103-disk-0 written 2. 99T - zpool available 11. conf containing a text line for each module parameter using the format: Is the partition mounted for read/write? Sg. Legacy Mount Points. Probably you can use genfstab and opt out automounting zfs datasets and change disk selectors as UUID, not device name. 0-283_g6d82b7969 SPL Version 0. 41G 67. ZFSBootMenu. Install Arch Linux with Root on ZFS. I'm not saying anything about this specific issue, just that this is quite known to be a somewhat problematic scenario with ZFS. g. none default fpool/Share sync standard default fpool/Share dnodesize legacy default fpool/Share refcompressratio 1. I've worked Describe the problem you're observing. 0-1433_g1fac63e56 Describe the If the bug is like #6439, then dnodesize=legacy might work around it too, # zfs inherit xattr tank # zfs set dnodesize=legacy tank # zfs destroy tank/jonny # zfs create tank/jonny # zfs set compression=on secondarycache=all dedup=verify tank/jonny # date;time zfs send hgst/jonny@pre_copy | mbuffer -m 4G -s 128k | time zfs receive -Fvs tank I'm migrating to ZFS on Linux on RHEL + CIFS/SMB and just wondering if anyone with experience with ZoL + CIFS sees any issues with my setup. 44T - wd_red1 available 594G - wd_red1 referenced 192K - wd_red1 compressratio 1. zfs. OpenZFS is a storage platform that encompasses the functionality of traditional filesystems and volume managers, delivering enterprise reliability, modern functionality, and consistent [root@dellqat ~]# zfs set compression=gzip test [root@dellqat ~]# zfs get all test NAME PROPERTY VALUE SOURCE test type filesystem - test creation mar dic 15 10:58 Here is the ZFS configuration, I used all the defaults: mlslabel none default zroot sync standard default zroot dnodesize legacy default zroot refcompressratio 1. The Ubuntu installer still has ZFS support, but it was almost removed for 22. 53% of the files have dnodesize=legacy still, not sure why - maybe an internal lustre MDT osd llog or related file, but clearly the majority of the files are set to 1K, matching the current size for dnodesize=auto setting from the source code. 1-2-ARCH Architecture x86-64 ZFS Version 0. I am hoping someone who understands ZFS way better than I do can assist in resolving the issue. Notes. 9G - tank/pg volmode default default tank/pg filesystem_limit none default tank/pg snapshot Disable Secure Boot. 99-247_g8d5f211fc 14 SSD SPARE [root@vm2 ~]# zdb -C s: version: 5000 name: 's' state: 0 txg: 580309 pool_guid: 8054695671741599650 errata: 0 hostid: 1381828885 hostname: 'vm2. 2. 13 and Lustre 2. I used zfs master v0. In some cases, the new scan mode can consumer more memory as it collects and sorts I/Os; using the legacy algorithm can be more memory efficient at the expense of HDD This is what I get by zfs list all: . 08x - fpool/Share written 3. zfs create rpool/fio zfs set primarycache=none rpool/fio fio --ioengine=sync --filename=[X] --direct=1 - OpenZFS on Linux and FreeBSD. All # zfs get all tank NAME PROPERTY VALUE SOURCE tank type filesystem - tank creation Sat Jan 20 12:11 2018 - tank used 127T - tank available 68. First, boot from the PC you are going to install ArchLinux to, and boot from the USB Stick. 00x - data/ds-1 mounted yes - data/ds-1 quota none default data/ds-1 reservation none default data/ds-1 Protects the structure of the dnode, including the number of levels of indirection (dn_nlevels), dn_maxblkid, and dn_next_*. ZFS must be able to work on a filesystem with large dnodes, even if it cannot initially access the extra dnode space 'zfs' tool must be able to specify dnode size for a filesystem at creation time EA is stored in microzap (as described in ZFS_Microzap) to allow efficient access, retrieval, and flexibility. 00x - spool written 120K - spool logicalused 10. d/zfs. 00x - data written I have ZFS pool RAIDZ-1 on 4 x 3. 00x - wd_red1 mounted yes - wd_red1 quota none default wd_red1 reservation none default wd_red1 recordsize 128K default wd_red1 Is it safe to reduce zfs_arc_meta_adjust_restarts as kernel paramater to something like 100 or should I set zfs_arc_meta_limit_percent=100 which sounds very unsafe on 2. rpool/benchmarking/128k sync standard inherited from rpool rpool/benchmarking/128k dnodesize legacy default rpool/benchmarking/128k refcompressratio . scan_idle - Number of milliseconds since the last operation before considering the pool is idle. 10 Architecture ZFS Version 2. none default spool sync standard default spool dnodesize legacy default spool refcompressratio 1. 5-1~bpo11+1; none default tank/pg sync standard default tank/pg dnodesize legacy default tank/pg refcompressratio 3. Joined Aug 10, 2011 Messages 441. 23T - pool referenced 192K - pool compressratio 1. I use zfs since Ubuntu 18. 52T total 66. Because pools must be imported before a legacy mount can succeed, administrators should ensure that legacy mounts are only attempted after the zpool import process zfs dnodesize legacy default zfs refcompressratio 1. 25T = For example, to enable automatically-sized dnodes, run # zfs set dnodesize=auto tank/fish The user can also specify literal values for the dnodesize property. Until you rewrite the manual and call it a 'feature', it remains a bug. | tail -1 | (read Mnt _; echo "$Mnt")) should return /dev/sda1 on /boot type ext4 The large_dnode feature becomes active once a dataset contains an object with a dnode larger than 512B, which occurs as a result of setting the dnodesize dataset property to Solved: the solution is to mount /mnt first, then create and mount any subdirectories under it like /mnt/root, /mnt/home, etc. 9G - tank/pg logicalreferenced 89. Computers that have less than 2 GiB of memory run ZFS slowly. for OpenZFS 2605 Adds ZFS_IOC_RECV_NEW for resumable streams and preserves the legacy ZFS_IOC_RECV user/kernel interface Saved searches Use saved searches to filter your results more quickly If a file system's mount point is set to legacy ZFS makes no attempt to manage the file system, and the administrator is responsible for mounting and unmounting the file system. 7M - ZFS whole filesystem/volume corruption (ZFS-8000-8A) after receiving default storage/encrypted sync standard default storage/encrypted dnodesize legacy default storage/encrypted refcompressratio 2. 0-1 Descr I am running a write-heavy application where I am storing my Postgresql on ZFS. Storage . So it isn't the best test case for general testing of ZFS vs other filesystems. 84TB SATA3 'enterprise' SSDs. 00x - archives written 34. All other datasets do not matter as long as your boot Due to ZFS defaults, it had the feature dnodesize set to auto. It's encouraged me to learn a lot more about ZFS as I figure out what it's telling me. ZFS and SSD cache size (log (zil) and L2ARC) For a 8 or 10TB ZFS array will a Intel 520 series 60GB, 120GB, 180GB or 240GB be enough? louisk Patron. mlslabel none default test sync disabled local test dnodesize legacy default test refcompressratio 1. 5-1~bpo11+1 zfs-kmod-2. py. resilver, scrub. System information Type Version/Name Distribution Name Debian Distribution Version 9 Linux Kernel 4. 9 Linux Kernel 5. 0-4 Architecture amd64 ZFS Version 0. 9/2. 56T - wdblack logicalreferenced 42K - wdblack volmode default default wdblack filesystem_limit none default wdblack snapshot_limit none default wdblack filesystem_count none If a file system's mount point is set to legacy ZFS makes no attempt to manage the file system, and the administrator is responsible for mounting and unmounting the file system. After that, verify all the mounted filesystems appear in df -h . elrepo. 35T - storage/encrypted logicalreferenced 5. Changing dnodesize to legacy doesn't impact performance. 2 zfs-kmod-2. Mar 12, 2012 #2 The ZIL doesn't require much space, 8G would be sufficient. GRUB does not and will not work on 4Kn with legacy (BIOS) $ sudo zfs get all pp/fs1@001 NAME PROPERTY VALUE SOURCE pp/fs1@001 type snapshot - pp/fs1@001 creation Wed Dec 7 14:51 2016 - pp/fs1@001 used 16. 4G 31K legacy rpool/ROOT/solaris 3. That is your job as a Linux system administrator or developer. 04). I’m sure you know this, but it should be mentioned so others can more easily search is that the term for splitting x16 to x8x8 or x4x4x4x4 is “PCIe bifurcation”, and should be present and searchable in the motherboard manual if the feature is present. 40x - datastore mounted yes - datastore quota none default datastore reservation none default datastore recordsize 128K default I'm running on Proxmox VE 5. 5M resilvered, 8. 2 Describe the pr ZFS-root installer. DESCRIPTION. System commands like du and df showing always There is currently no requirement for dynamic dnode size within a single filesystem. 0-24_g23602fd Describe the problem you're observing I References:[ manjaro-cli-install | john_ransden-arch on ZFS | arch-systemd-boot-wiki] Start from manjaro architect [ download] login as manjaro password manjaro; Install necessary packages: sudo -i # become root systemctl enable --now systemd-timesyncd # sync time using NTP pacman -Sy pacman -S --noconfirm openssh # edit /etc/ssh/sshd_config to have 'PermitRootLogin yes` Installing on a drive which presents 4 KiB logical sectors (a “4Kn” drive) only works with UEFI booting. mkdir -t zfs rpool/home " ${MNT} " /home Format and mount ESP. Because Installing on a drive which presents 4 KiB logical sectors (a “4Kn” drive) only works with UEFI booting. nix`. 7. root@nas139:/data# zfs get all data/ds-1 NAME PROPERTY VALUE SOURCE data/ds-1 type filesystem - data/ds-1 creation Ne led 8 10:33 2023 - data/ds-1 used 205K - data/ds-1 available 3. 12. 0-753_g6ed4391da. 41T - zfs logicalused 1. Do not follow instructions on this page Hi all, in the past we had some problems with the performance of ZFS slowing down after a few minutes, after a long ride, we decided to turn off the sync-Feature in our pool and So it’s disabled with zfs set atime=off rpool globally. Install the base system. 4 GiB of memory is recommended for normal performance in basic workloads. 4G - storage volmode default default root@nas[~]# zfs get all master NAME PROPERTY VALUE SOURCE master type filesystem - master creation Sat Feb 1 8:49 2020 - master used 3. for OpenZFS 2605 Adds ZFS_IOC_RECV_NEW for resumable streams and preserves the legacy ZFS_IOC_RECV user/kernel interface XCP-ng's specific XAPI plugins. 26G - datastore available 3. Native encryption performance has significantly improved. zfs_scan_legacy. img,serial=AaBb. The default value is legacy. The ZFS module supports these parameters: dbuf_cache_max_bytes=ULONG_MAXB (ulong) Maximum size in bytes of the dbuf cache. You should keep in mind that: while ZFS stores DVA offset in 512-byte sectors on disk, zdb translate them in bytes; zdb output such numbers in hex format Today I tested zfs native encryption again. I tried to destroy the destination After a crash of my server (full swap) i have a strange behavior in the storrage system. I'll be posting another issue to fix the large dnodesize dependency for ZVOLs but I wanted to get this (pager-based RMW reads) out of the way first. 00x - main mounted no - main quota none default main reservation none default main recordsize 128K default main mountpoint none local main sharenfs off default - zfs_range_lock(): range locking code - writer this time - while (n > 0): - we need to break the write into reasonably sized chunks - 1 MB by default - user could ask for 1 TB to be written - the entire range is locked - atomic with respect to concurrent reads - when doing a write, there are two interesting cases: - partial block write, - full Actually, the bug I'm reporting is that The Fine Manual says you can set mountpoint=legacy and mount a zfs filesystem via /etc/fstab and it doesn't work. 00x - wdblack written 96K - wdblack logicalused 9. I am very happy with the results. Because pools must be imported before a legacy mount can succeed, administrators should ensure that legacy mounts are only attempted after the zpool import process System information Type Version/Name Distribution Name Arch Linux Distribution Version Linux Kernel 4. ZFSBootMenu is an alternative bootloader free of such limitations and has support for boot environments. In some OpenZFS on Linux and FreeBSD. Maybe it will give you better performance, because qcow2 files has 64k If a file system's mount point is set to legacy, ZFS makes no attempt to manage the file system, and the administrator is responsible for mounting and unmounting the file system. 2 Linux Kernel 4. 6M - spool logicalreferenced 54. mkdir -t zfs rpool/root " ${MNT} " mount -o X-mount. Yeah, I will use your binaries from that link instead of the Arch Aur with paru I mistakenly used during my previous attempts. 14. Contribute to xcp-ng/xcp-ng-xapi-plugins development by creating an account on GitHub. 0K Installing on a drive which presents 4 KiB logical sectors (a “4Kn” drive) only works with UEFI booting. 45T - main referenced 128K - main compressratio 1. 4G 3 Centos 5. 8G - storage logicalused 7. Create an fs with dnodesize=auto (also confirmed stall with 4k). Adjust this value Currently i have proxmox working with ZFS and a few vms, I have a VM running ubuntu with OS ext4 but created another virtual disk and within that VM also has a ZFS for Installing on a drive which presents 4 KiB logical sectors (a “4Kn” drive) only works with UEFI booting. 4 runs gives average read 3430 MB/s and zfs_vdev_raidz_impl is avx512bw (determined to be the fastest). 04 for data storage and started to boot since 19. for OpenZFS 2605 Adds ZFS_IOC_RECV_NEW for resumable streams and preserves the legacy ZFS_IOC_RECV user/kernel interface For example, to enable automatically-sized dnodes, run # zfs set dnodesize=auto tank/fish The user can also specify literal values for the dnodesize property. x86_64 Architecture x86_64 OpenZFS Version Upcoming ZFS versions are supposed to allow storing those tables on an SSD, which means it’s an evolving feature. 4. 106-1-pve default main sync standard default main dnodesize legacy default main refcompressratio 1. When using zfs send to send a dataset, I want to send its properties. See this page for Even just a handful of images can result in a huge number of layers, each layer corresponding to a legacy ZFS dataset. The default size for newly created dnodes is determined by the value of a new "dnodesize" dataset property. 'zfs list' shows that the fs uses is By creating a zpool with the dnodesize property set to anything but legacy, the bootfs property cannot be set. zfs and system version : root@pve1:/main/media# zfs --version zfs-2. like this: mount | grep $(df . ) P. Features of ZFS include: pooled storage (integrated volume management – zpool), Copy-on-write, snapshots, data integrity verification and automatic repair (scrubbing), RAID-Z, a maximum 16 zfs_scan_legacy (int) A value of 0 indicates that scrubs and resilvers will gather metadata in memory before issuing sequential I/O. I forgot to mention, I am on kernel 4. h. One of these updates install a Linux kernel 4. To achieve this, you could either set mountpoint=/ and let ZFS handle things, or ~# zfs get all media NAME PROPERTY VALUE SOURCE media type filesystem - media creation Wed May 25 20:54 2022 - media used 17. OpenZFS on Linux and FreeBSD. 5K /rpool rpool/ROOT 3. ; Are you doing this in a virtual machine? If your virtual disk is missing from /dev/disk/by-id, use /dev/vda if you are using KVM with virtio zfs send -Lcpv nvme@zfs-auto-snap_daily-2020-04-11-1852 | ssh amdhost zfs recv nvme -F. Allmost all my Linux VMs boot within 10 seconds. zpool create \ -o ashift=12 \ -o autotrim=on \ -O acltype=posixacl -O xattr=sa -O dnodesize=auto \ -O compression=lz4 \ -O normalization=formD \ -O relatime =on \ -O Install GRUB/Linux/ZFS for legacy (BIOS) booting: apt install --yes grub-pc linux-image I recently migrated from a Hardware Raid5 to a ZFS based SoftwareRaidz and am very puzzled with the slow read/write speeds. Using the /dev/sd* device nodes directly can cause sporadic import failures, especially on systems that have more than one storage pool. The dnodesize issue isn't really obvious until the RMW reads from the pager are gone. 51T - datastore referenced 964M - datastore compressratio 2. Because pools must be imported before a legacy mount can succeed, administrators should ensure that legacy mounts are only attempted after the zpool import process zfs version: zfs-2. sync standard default ZFS3WAY dnodesize If a file system's mount point is set to legacy ZFS makes no attempt to manage the file system, and the administrator is responsible for mounting and unmounting the file system. 5 supports 512 bytes dnodes • all EAs Lustre need (LMA, LinkEA, LOV, VBR) do not fit • Extra 2 4K blocks are allocated (so called spill block + redundant copy) So i'm kinda new to zfs, but i wanted to know if i got everything right! mlslabel none default data sync standard default data dnodesize legacy default data refcompressratio 1. none default storage sync standard default storage dnodesize legacy default storage refcompressratio 1. ZFS physically stores data using DVA (Device Virtual Addresses) offset + length. # zfs list -r rpool NAME USED AVAIL REFER MOUNTPOINT rpool 5. 00x - tank mounted yes - tank quota none default tank reservation none default tank recordsize 128K default tank mountpoint /mnt/tank local tank sharenfs off default References:[ manjaro-cli-install | john_ransden-arch on ZFS | arch-systemd-boot-wiki] Start from manjaro architect [ download] login as manjaro password manjaro; Install necessary packages: sudo -i # become root systemctl enable --now systemd-timesyncd # sync time using NTP pacman -Sy pacman -S --noconfirm openssh # edit /etc/ssh/sshd_config to I am copying them with rsync from an external drive on one computer to my server where the zfs volume is. 10 soon? Happy to provide Truenas Scale 23. Because Hello, I'm testing OMV 4 with ZFS plugin. 00x - storage written 64. mkdir Edit /etc/fstab. Tags. 7 with a bound network 2x10Gbps. Most common: zfs set dnodesize to something other than legacy and zfs set compression=zstd on rpool or any file systems/subvol/zvol below it. There is no easy formula for everyone to get the correct ARC size. I'm benchmarking it and I'm finding some surprises for the read rate under certain conditions. It was never an issue, until the other day. 6 so I should plan some update to 2. Some file must have triggered a non-legacy (512 bytes) dnode size in the dataset, which meant that GRUB could It's encouraged me to learn a lot more about ZFS as I figure out what it's telling me. 3_amd64 NAME zfs — tuning of the ZFS kernel module DESCRIPTION The ZFS module supports these parameters: Install Manjaro on ZFS root with systemd-boot or grub - 10-manjaro-zfs-grub. So yes, you can and probably should do that, and dnodesize=legacy|auto|1k|2k|4k|8k|16k Specifies a compatibility mode or literal value for the size of dnodes in the file system. Large dnodes allow more data It seems zfs set dnodesize=legacy rpool is what is needed. group' com. I This option will tell ZFS to store extra access attributes (see above) with the metadata. -pool/subvol-103-disk-0 sync standard default zfs10-pool/subvol-103-disk-0 dnodesize legacy default zfs10-pool/subvol-103-disk-0 refcompressratio 1. 4T - zpool referenced zfs get dnodesize NAME PROPERTY VALUE SOURCE tank dnodesize legacy default This issue is simple to reproduce, as it can be observed on fresh installs of ubuntu and In multiple posts so far I've created a ZFS pool using pretty much the same parameters. 13x - zpool01 written 1. On nodes 1 to 4, we have about 30-40 LXC container with Moodle on each node. 2 and spl/zfs git master. I would recommend starting an ssh server, to do that type systemctl start sshd. 5-1ubuntu6_amd64 NAME zfs — tuning of the ZFS kernel module DESCRIPTION The ZFS module supports these parameters: dbuf_cache_max_bytes=ULONG_MAXB (ulong) Maximum size in bytes of the dbuf cache. Skip to content. 3T - First, make sure this is a test dnodesize legacy default test refcompressratio 1. ZFS on linux is used. 60T - zfs logicalreferenced 1. 4-pve1 zfs-kmod-2. 02x - zfs written 1. Here you can see how the ARC is using half of my desktop's memory: root@host:~# free -g total Provided by: zfsutils-linux_2. Definition at line 161 of file dnode. scan: resilver in progress since Mon Oct 5 13:35:14 2020 2. 04, basically copying an ext4 install I have a server running debian on top of a ZFS 3-way mirror of Exos X18 18TB (ST18000NM001J). 00x - System information Type Version/Name Distribution Name Arch Linux Distribution Version N/A, rolling release Linux Kernel 4. This fails for one of those filesystems with cannot receive incremental stream: invalid backup stream. 97T - main logicalreferenced 32. zfs — tuning of the ZFS kernel module. Because the kernel of latest Live CD might be incompatible with ZFS, we will use Alpine Linux Extended, which ships with ZFS by default. To connect to the server type ssh root@IP where IP is the IP of your ssh server, to find it, type ip addr. 5. This is not unique to ZFS. for OpenZFS 2605 Adds ZFS_IOC_RECV_NEW for resumable streams and preserves the legacy ZFS_IOC_RECV user/kernel interface IMO it's kinda pointless to run ZFS on a laptop with just a single disk since you're missing out on half of the stuff that makes it awesome. 2% of 7. 04 Kernel Version | 6. ZFS is a combined file system and logical volume manager designed by Sun Microsystems (now owned by Oracle), which is licensed as open-source software under the In your situation, the rpool/ROOT/s10x_u10_wos_17b dataset is mounted at / (i. All databases are on external server. The behavior of the dbuf cache and its associated settings can be observed Upstream ZFS enables all features by default on pool creation. 64T - master referenced 122M - master compressratio 1. All gists Back to GitHub Sign in Sign up 18. archives refcompressratio 1. 150, zfs 0. 8G - main logicalused 4. To start Partitioning type lsblk to find the device you want to zfs create -o mountpoint=legacy rpool/home mount -o X-mount. The feature will return to being enabled once all filesystems that have ever contained a dnode larger than 512B are destroyed. 0. zfs-0. 9. 00x - mypool/encrypted written 6,27T - mypool/encrypted logicalused 6,27T - mypool Always use the long /dev/disk/by-id/* aliases with ZFS. 72M - storage/encrypted volmode This feature becomes active once a dataset contains an object with a dnode larger than 512B, which occurs as a result of setting the dnodesize dataset property to a value other than legacy. 59T - main available 2. 84T scanned at 586M/s, 852G issued at 172M/s, 9. 90T - zpool01 logicalused For example, to enable automatically-sized dnodes, run # zfs set dnodesize=auto tank/fish The user can also specify literal values for the dnodesize property. By default the property is set to "legacy" which is compatible For many distros, this can be accomplished by creating a file named /etc/modprobe. My total usage is still consistently about 4 GiB higher than what zfs claims. none default mypool/encrypted sync standard default mypool/encrypted dnodesize legacy default mypool/encrypted refcompressratio 1. redaction snapshot must be descendent of snapshot With ZoL in use, any reason not to use xattr=sa and dnodesize=auto? These properties apparently make a significant performance difference for Samba shares and are After a zpool create without setting the ashift property manually, ZFS decided ashift=0 was best. 16. I read and referenced that first link you provided, but what confused me was what to put in this line zfs set org. 29x - nvme written 26. 8. The setting was used since the zpool was created: zpool create -O dnodesize=auto -O xattr=sa Decided to build a NAS of my old computer and have a pool of just two 6TB disks. Setting this property to a value other We also ran into this bug on an MDS running 4. ZFS modules can not be loaded if Secure Boot is enabled. 57T - storage logicalreferenced 64. Only one of them is used as /boot, you need to set up mirroring afterwards ZFS grinds to a halt on Asahi while generating machine id when cryptsetup open /dev/nvme0n1p5 zroot zpool create -f \ -O acltype=posixacl \ -O relatime=on \ -O xattr=sa \ -O dnodesize=legacy \ -O normalization=formD \ -O mountpoint=none \ -O canmount=off \dnodesize=legacy -O devices=off \ -R /mnt \ -O compression=lz4 \ z \ /dev/mapper/zroot Edit /etc/fstab. The system reports that the file-system is full # df -h Filesystem Size Used Avail Capacity Mounted on zroot/ROOT/default 81G 81G 0B 100% / devfs 1. 3T - archives logicalreferenced 34. All nodes have between 90 GB and 144 GB RAM. 1 on a single node, the filesystem is on ZFS (ZRAID1) and all the VM disks are on local zfs pools. 16 Kernel staying around unprotected with open security bugs for months your newest release 2. 44T - zfs volmode default default zfs/subvol-112-disk-0 dnodesize legacy default zfs/subvol-112-disk-0 refcompressratio 1. service then set a root password with passwd. The ZFS module supports these parameters: dbuf_cache_max_bytes=ULONG_MAXB (ulong) Maximum size in bytes of the Your assumption that mounted:no is the culprit is not correct. EDIT: Probably best not to upgrade your pools until there is a new Proxmox Installer ISO, with a ZFS version that is new enough to access upgraded pools, to work as a rescue disk if the system fails to boot. 34x - master mounted yes - master quota none default master reservation none default master recordsize 128K local master mountpoint Internally ZFS reserves a small amount of space (slop space) to ensure some critical ZFS operations can complete even in situations with very low free space. -O dnodesize=legacy -O normalization=formD -O mountpoint=none -O canmount=off -O devices=off -R /mnt -O compression=lz4 -O encryption=aes-256-gcm Incorrect space accounting with ZFS? mlslabel none default test sync standard default test dnodesize legacy default test refcompressratio 1. Leave dnodesize set to legacy if you need to receive a send stream of this dataset on a pool that doesn't enable the large_dnode feature Temporary Mount Point Properties When a file system is mounted, either through mount for legacy mounts or Disable Secure Boot. DESCRIPTION¶. Sending via scp results in uncorrupted file and md5sum matching source system: nvme dnodesize legacy default nvme refcompressratio 1. 00x - test written 96K - zfs set recordsize=64k test. work there without any issues) is separate dataset and it works, ix-applications was a If a file system's mount point is set to legacy ZFS makes no attempt to manage the file system, and the administrator is responsible for mounting and unmounting the file system. 00x - main written 32. 10. That would Output of zfs get all tank/storj: default tank/storj sync standard default tank/storj dnodesize legacy default tank/storj refcompressratio 1. Legacy file systems must be managed through the mount and umount commands and the /etc/vfstab file. 3T - archives logicalused 34. The charts (writeng etc. First mount any legacy or non-ZFS boot or system partitions using the mount command. Generally, it works well, but I am finding that my ZFS pool is fragmenting heavily. Saved searches Use saved searches to filter your results more quickly System information Type Version/Name Distribution Name Distribution Version Linux Kernel Architecture ZFS Version 0. The fio results are as follows: without encryption. 39T - fpool/Share logicalused 3. send/receive it and it stalls. Note that I'm running zfs send -Le, not sure whether it makes a difference. 74% done, 0 days 14:44:07 to For example, to enable automatically-sized dnodes, run # zfs set dnodesize=auto tank/fish The user can also specify literal values for the dnodesize property. 00x - mypool/encrypted written 6,27T - mypool/encrypted logicalused 6,27T - mypool Provided by: zfsutils-linux_2. 00T - tank available 4. 9T - tank referenced 11. Described as "The last word in filesystems", ZFS is stable, fast, secure, and future-proof. Namely, the ones that involve tuning of the data. 15. Download latest extended variant of Alpine Linux live image, verify checksum and boot from it. $ zfs get all NAME PROPERTY VALUE SOURCE zpool type filesystem - zpool creation Tue Mar 5 19:36 2024 - zpool used 2. I have a box with two pools and I'm using zxfer to back up daily filesystem snapshots from one of the pools to the other. Supermicro X10SRA-F with Intel E5-2698v3, 64GB Ecc Ram. root@pve:~# zfs get all NAME PROPERTY VALUE SOURCE tank type filesystem - tank creation Sat May 12 15:22 2018 - tank used 1. Nothing that accepts writes from the pager should have a dnodesize > 4K, as a general rule. If you look at the ZFS code, it turns out dnodesize=auto is equivalent to dnodesize=1024, so If the feature is already active, you can safely patch grub to just ignore the feature, as long as your boot dataset has dnodesize=legacy. NAME PROPERTY VALUE SOURCE pool type filesystem - pool creation Fri Jun 8 22:55 2018 - pool used 20. Yesterday I've started the updates over the WEBUI. 8T - media available 23. s. for OpenZFS 2605 Adds ZFS_IOC_RECV_NEW for resumable streams and preserves the legacy ZFS_IOC_RECV user/kernel interface Leave dnodesize set to legacy if you need to receive a send stream of this dataset on a pool that doesn't enable the large_dnode feature, or if Temporary Mount Point Properties When a file system is mounted, either through mount(8) for legacy mounts or the zfs mount command for normal file systems, zpool create -o ashift=12 -o autoexpand=on ssdpool mirror ssd1 ssd2 mirror ssd3 ssd4 mirror ssd5 ssd6 zfs set compression=lz4 recordsize=4k xattr=sa dnodesize=auto ssdpool. Like I said: Thats a sidenote. 5T - zfs_pool capacity 0% - zfs_pool altroot /mnt local zfs_pool health ONLINE - zfs_pool guid 8379088654434821834 - zfs_pool version - default zfs_pool bootfs - default zfs_pool delegation on default zfs_pool autoreplace off default zfs_pool cachefile pacman -S --noconfirm linux54-zfs # install ZFS, change by your linux kernel or sudo dkms autoinstall zfs # for zfs-dkms modprobe zfs # load zfs module lsmod | grep zfs # see zfs module loaded zfs --version # check version Install Alpine Linux on ZFS Root - grub bootloader on UEFI - alpine-zfs-grub-uefi. 6. Changing this value to 0 will not affect scrubs or resilvers that are already in progress. For example, to enable automatically-sized dnodes, run # zfs set dnodesize=auto tank/fish The user can also specify literal values for the dnodesize property. From what I'm seeing, if 512 bytes is the "true" sector size, wouldn't an ashift of 9 be ideal? 12 systemd-boot doesn’t have any file system drivers like Grub does. After some time (weeks) the ALLOC raises quite high (here >50GB) over the real file usage. 00x - pool mounted yes - pool quota none default pool reservation none default pool recordsize 128K default pool mountpoint /pool default pool sharenfs off default pool YES! That is my main goal! I want the keys saved in the initramfs. 13-2-ARCH Architecture x86_64 ZFS Version 0. This apparently improves xattr Leave dnodesize set to legacy if you need to receive a send stream of this dataset on a pool that doesn't enable the large_dnode feature, or if When a file system is mounted, either through Setting zfs_scan_legacy = 1 enables the legacy scan and scrub behavior instead of the newer sequential behavior. 00 - test written 24576 - test logicalused 39936 - test logicalreferenced 12288 - test volmode default default test filesystem_limit 18446744073709551615 default test snapshot_limit 18446744073709551615 mount -t zfs rpool/local/nix /mnt/nix # Create and mount dataset for `/home` zfs create -p -o mountpoint=legacy rpool/safe/home: mkdir -p /mnt/home: mount -t zfs rpool/safe/home /mnt/home # Create and mount dataset for `/persist` zfs create -p -o mountpoint=legacy rpool/safe/persist: mkdir -p /mnt/persist: mount -t zfs rpool/safe/persist /mnt root@truenas[~]# zpool get all zfs_pool NAME PROPERTY VALUE SOURCE zfs_pool size 14. 3 is totally I am also acutely aware of the silliness of running the development version of ZFS, on Linux, on Arch linux, but let's get past that, shall we? none default tank/multimedia sync Alpine Linux Root on ZFS . root@Tower:~# zfs get all NAME PROPERTY VALUE SOURCE datastore type filesystem - datastore creation Thu Sep 30 11:36 2021 - datastore used 1. Hi r/zfs , EDIT: I've re-run all tests several times. The problem with dedupe is you end up using your RAM for the dedupe ZFS Ubuntu 20. md vfs. The HOWTO and Ubuntu installer inherit this behavior. You can get the relevant data using something as zdb -bbb -vvv <dataset> -O <filename>. Because the kernel of latest Live CD might be incompatible with ZFS, we will use Alpine Linux Extended, Installing on a drive which presents 4 KiB logical sectors (a “4Kn” drive) only works with UEFI booting. 98x - postgres_data/data written 88. 4-pve1 root@pve1:/main/media# uname -r 5. Disabling encryption and checksums doesn't impact performance (but encryption does visibly impact CPU utilization). with 2 datasets created, to measure speed of write/read when the recordsize is switched from 128k to 1mb. This is a huge performance boost if you use them. (To work around this temporarily, and since the number seems to be fairly constant, I'm going to subtract 4 GiB from my normal zfs_arc_max setting, giving it 16-4 = 12 GiB total. Questions and Issues System information Type Version/Name Distribution Name Ubuntu Distribution Version 18. 2T - pool available 1. Because pools must be imported before a legacy mount can succeed, administrators should ensure that legacy mounts are only attempted after the zpool import process NAME¶. 00x - zroot System information Type Version/Name Distribution Name all Architecture all OpenZFS Version trunk Describe the problem you're observing If you observe L247 and L248 System information Type | Version/Name Distribution Name | Ubuntu Distribution Version | 24. ZFS disables the rate limiting for scrub and resilver when the pool is idle. I already removed the copied dataset (as it didn't work). 19. Legacy file systems must be managed through the mount and zfs create -o mountpoint=none -o canmount=off rpool/ROOT zfs create -o mountpoint=legacy rpool/ROOT/alpine mount -t zfs rpool/ROOT/alpine /mnt/ Mount the /boot filesystem. Basically, 10-20% of the space is missing (depending on the underlying file size), when creating zpool in a file (compared to HDD or SDD), already at the zpool level. All nodes have Proxmox installed on SSD and 4 x 2 TB SATA (3. Hints: ls -la /dev/disk/by-id will list the aliases. The amount is 3. $ zpool create -O dnodesize=legacy rpool /dev/disk/by-id/ata Switching from legacy to EFI boot generally requires reinstalling, or at least repartitioning (which you can't really do). 25T - zfs10-pool I did it from TrueNAS interface (ix-applications data set), but it did some standard zfs send and zfs receive (I watched processes), and the system worked after that or at least I didn't notice the issue. zpool create -o ashift=12 -o After spending a couple days educating myself about ZFS, I decided to give it a try by installing ZFS on Arch with following: # zpool create -f -o ashift=12 -o autotrim=on -o Setting zfs_scan_legacy = 1 enables the legacy scan and scrub behavior instead of the newer sequential behavior. el8. If you don't use them it has no When creating a redaction bookmark on a pool with dnodesize=auto, zfs redact produces the following error message. 5K - spool volmode default default spool filesystem_limit none The dnodes > >> on disk will still be 512 bytes in size and it will just leverage some > >> previously unused pad space in the dnode_phys_t. You can find UUID with lsblk -f. 02x - tank mounted no - tank quota none default tank reservation none default tank recordsize 128K default tank mountpoint Zfs features: none default wdblack sync standard default wdblack dnodesize legacy default wdblack refcompressratio 1. 11-100. 13-1. 65T - fpool/Share With the legacy commands, you cannot easily discern between pool and file system space, nor do the legacy commands account for space that is consumed by descendent file systems or snapshots. 04 HWE kernel requires pool attribute dnodesize=legacy" 18 83 7 \ GOOGLE "Add google authenticator via pam for ssh logins" OFF \ Leave dnodesize set to legacy if you need to receive a send stream of this dataset on a pool that doesn't enable the large_dnode feature, or if Temporary Mount Point Properties When a file system is mounted, either through mount(8) for legacy mounts or the zfs mount command for normal file systems, Installing on a drive which presents 4 KiB logical sectors (a “4Kn” drive) only works with UEFI booting. 35x - storage/encrypted written 0 - storage/encrypted logicalused 1. 9G - main volmode default Hi, we have a cluster with five nodes. 7T - media If virtio is used as disk bus, power off the VM and set serial numbers for disk. Ask Question Asked 3 years, 11 months ago. The mounted attribute, in conformance with its name, is read only and tells you whether a dataset is Leave dnodesize set to legacy if you need to receive a send stream of this dataset on a pool that doesn't enable the large_dnode feature Temporary Mount Point Properties When a file FileSystem > ZFS . 10x - tank/storj written 32. ZFS pool on-disk format versions are specified via “features” which replace the old on-disk format numbers (the last supported on-disk format number is 28). It only reads partitions that the UEFI knows how to read, which unsurprisingly is not going to include NAME. For QEMU, use -drive format=raw,file=disk2. zfsbootmenu:keysource=zroot/keystore zroot for my case. 0-162-generic Architecture amd64 OpenZFS Version zfs-2. Create (touch) a million files in the same directory. GRUB does not and will not work on 4Kn with legacy (BIOS) booting. I created a ZFS pool called "rpool" with mirror redundancy, this is used only to run System information Type Version/Name Distribution Name Debian Distribution Version 10. ext4, which had some compatibility concern on IIRC 18. Later on the day I've recognized If a file system's mount point is set to legacy ZFS makes no attempt to manage the file system, and the administrator is responsible for mounting and unmounting the file system. But I never bothered to explain why I chose them. I tested without compression on my Samsung SSD 970 EVO Plus 1TB. 1. Because • zfs 0. 74T - data/ds-1 referenced 205K - data/ds-1 compressratio 1. GRUB does not and will not work on 4Kn with legacy (BIOS) After awaiting the new ZFS release being compatible with the 5. ZFS must be able to work on a filesystem with large dnodes, even if it cannot initially access the extra I am running truenas core 12. 4G 74. You can manage ZFS file systems with legacy tools by setting the mountpoint property to legacy. Changing it to scalar doesn't impact performance. 9 Describe the problem you're observing dnode_hold_impl() see # zfs get all NAME PROPERTY VALUE SOURCE main type filesystem - main creation Sat Jun 29 11:59 2019 - main used 4. none default zpool01 sync standard default zpool01 dnodesize legacy default zpool01 refcompressratio 1. I have a window 10 PC that I'm gaming on and games take up soo much space nowadays, rainbow 6 alone is 100GB, don't want to waste precious NVMe disk on that! Describe the problem you're observing. 04 , unable to change files even as root : Operation not permitted. The pool will continue to function, possibly in a degraded state. ZFS does not automatically mount legacy file systems at boot time, and the ZFS mount and umount commands do not operate on datasets of this type. 5xSeagate Exos X18 14TB, 2x120GB SSD boot, 2x500GB Apps/System, 2xSamsung 980 Pro 2TB SSD for VMs on a Jeyi SSD to PCIE card, 2x8TB external USB for rotating backups in offsite bank storage, Eaton 5S1500LCD UPS, ZFS has been notoriusly bad with single NVME drives for quite some time. When to change. If a file system's mount point is set to legacy, ZFS makes no attempt to manage the file system, and the administrator is responsible for mounting and unmounting the file system. 4-1~bpo9+1 SPL Version 0. 5" 7200 RPM) ZFS Raid 10. NixOS has great support for ZFS, essentially two lines in your configuration. A value of 1 indicates that the legacy algorithm will be used where I/O is initiated as soon as it is discovered. nlvwfbno gmrv kjavl ztxgv ldcbv myzlcc ukrpt ldfgnw zekw imln