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13.11.2020 · Also docker can't start in LXC on ZFS datasets: 1) overlay can't work on ZFS 2) docker ZFS storage driver can't manage ZFS inside LXC But can use ZFS volume (without Proxmox UI, editing lxc-container configuration directly) with ext4/xfs and with overlay.

02.06.2020 · The default storage drivers for most situations is overlay2 (overlayFS), but if the backing filesystem is zfs or btrfs, then docker defaults to using those (in that case, it assumes the user setup those filesystems also to manage container filesystems); perhaps this could be changed for a future version, but not sure if overlayFS on top of either zfs or btrfs works (🤔)

Use the ZFS storage driver. Estimated reading time: 9 minutes. ZFS is a next generation filesystem that supports many advanced storage technologies such as volume management, snapshots, checksumming, compression and deduplication, replication and more.

If you use ZFS or another storage driver it will leverage their ... manually specify the volume driver to overlay2 when your FS is ZFS, and this just works?

19.06.2020 · This is why the ZFS storage driver is used. Disk Speed Benchmarks 21.3 4k rand read 14.1 24.7 1.9 4k rand write 1.5 5.2 477.4 4k seq read 106.9 451.8 2.6 4k seq write 2 5.9 298.1 1M rand read 712.3 810.4 72.9 1M rand write 121.7 178.6 567.5 1M seq read 1038.5 1204.9 64.4 1M seq write 114.2 181.4 188.26 Average 263.9 357.9 LXC VM Proxmox Fig. 1 - Disk speed in …

11.11.2021 · Neither of these are recommended for use on modern Linux distributions where overlay2 is supported. btrfs and zfs. These two drivers work at the block level and are ideal for write-intensive operations. They each require their respective backing filesystem. Use of these drivers results in your /var/lib/docker directory being stored on a btrfs ...

ZFS requires one or more dedicated block devices, preferably solid-state drives (SSDs). · ZFS is not supported on Docker EE or CS-Engine, or any other Linux ...

Docker has a ZFS storage driver that automatically detects if your images are being stored on ZFS. If so, it uses ZFS datasets and clones to ...

20.04.2019 · On other filesystems such as ext4 and btrfs, the "overlay2 driver" (utilizing the kernel's overlayfs module) can be used which is extremely fast. Docker build times can go from a fraction of a second on ext4/overlay2 to several minutes on zfs/zfs. overlay2 driver selection is currently blacklisted on zfs by docker:

Use the OverlayFS storage driver. Estimated reading time: 18 minutes. OverlayFS is a modern union filesystem that is similar to AUFS, but faster and with a simpler implementation. Docker provides two storage drivers for OverlayFS: the original overlay, and the newer and more stable overlay2.. This topic refers to the Linux kernel driver as OverlayFS and to the Docker storage …

Configure Docker to use zfs. Edit /etc/docker/daemon.json and set the storage-driver to zfs. If the file was empty before, it should now ...

The service should not need to write to disk within the container. Now I can see why you might run ZFS on the docker host, and map local ...

zfs list -> the dataset associated to this stopped container are still there ... The default storage drivers for most situations is overlay2 ...

Add all the ZFS features to Docker by running it on a zpool! ... 0 Server Version: 18.03.0-ce Storage Driver: overlay2 Backing Filesystem: ...

If you're writing a lot of temporary files or caching many operations on-disk, btrfs or zfs can out-perform overlay2 . The one you should ...

11.12.2020 · Since docker has a pluggable architecture, Docker supports a variety of different storage drivers, and some are overlay2, aufs, devicemapper, vfs, btrfs and zfs, etc. The overlay2 is the preferred storage driver for all currently supported Linux …

Sure, zfs is great for storing data, but the point of containers is to have a stateless service. The service should not need to write to disk within the container. Now I can see why you might run ZFS on the docker host, and map local directories to the containers.. but that is different.

I have docker swarm with many services backed on zfs storage driver with many clones/snaps. How to migrate all data to overlay2?