Mount Ext4 Zvol. I created custom app and used the I am struggling to mount a ZVOL se
I created custom app and used the I am struggling to mount a ZVOL securely but r/w in a container. Or just mount the file (the mount command will It might be best to avoid the problem by creating a volume in your ZFS pool, formatting that volume to ext4, and having docker use "overlay2" on top of that, instead of "zfs". After it is formatted, there is a second mount of that file So I created a ZVOL inside my ZFS dataset, and formatted it as ext4, mounted it as /docker, and then symlinked /var/lib/docker to /docker. TL;DR QCOW2 (and raw) volumes on top of a gen4 nvme ZFS pool are much slower than ZVOLs (and QCOW2 on ext4) for backing a Windows 10 VM, I did not expect that. While Once that raw hard drive is mounted, the external server will format it with its own file system, like VMFS for an ESXi storage. Background If it contains some other filesystem, like ext4 (the file name can be misleading): Attach it using losetup, then mount the loop device as usual. I've tried using `zfs mount`, I've also tried setting Using the ext4 driver to mount an ext3 file system has not been fully tested on Red Hat Enterprise Linux 5. Even locally, if you format a zvol, Once that raw hard drive is mounted, the external server will format it with its own file system, like VMFS for an ESXi storage. See "Cloning" below. Sometimes you just want to examine them in the host; here is how to mount them. DON'T do this if the snapshot will be the target of subsequent incremental replication. The cool part about this is that the whole ext4 volume gets I am messing around with the idea of mounting a ZVOL inside an app container so that I can format it with the xfs filesystem for use with rustfs. I just switched some of my Kubernetes nodes to run on a root ZFS system. When the pool is imported, they show up under /dev/zvol/<path to zvol dataset>. Even using a ZIL you will experience low speed when writing to a zvol through the Network. For test puposes I Create a zvol, format it as ext4 and use the 'overlay2' driver (source1, example Ansible playbook) Interestingly, I found no sources (yet?) of anyone using the native Docker ZFS storage driver. At this point they I am pondering if I should just keep this setup and mount it via cli (iscsi+ext4) being the same setup as I did before and then expose it as local storage in proxmox. This may sound wacky, but you could put another filesystem, and mount it, on top of a ZVOL. Options for zfs receive -u Don't mount anything created -F Rollback all changes since most recent snapshot -d Discard the pool name from the sending path -x mountpoint Block mountpoints from Hello, I am messing around with the idea of mounting a ZVOL inside an app container so that I can format it with the xfs filesystem for use with rustfs. After adding it to your fstab, you can mount it and treat it like any other disk partition. I believe I did the same as MarcS, creating Then I tried with fs type options: mount -o ro -t ext4 /dev/zvol/rpool/data/vm-102-disk-1 /mnt/loop/ Code: I am currently setting up a SAN for diskless boot. Therefore, this action is not supported because Red Hat cannot guarantee consistent performance Look into the hidden . This may sound wacky, but you could put another filesystem, and mount it, on top of a ZVOL. I tried device unix-block, disk with not luck. Then, zvol could register there its zvol_device_full () method to return "true" if zfs This may sound wacky, but you could put another filesystem, and mount it, on top of a ZVOL. Here are my notes. I created a zvol: zfs create -s -V 200GB pool1/lxd-zvol/backup Next I tried Firstly, we could add an ad-hoc callback to struct backing_dev_info, for example, block_device_full (). I believe I did the same as MarcS, creating It might be best to avoid the problem by creating a volume in your ZFS pool, formatting that volume to ext4, and having docker use "overlay2" on top of that, instead of "zfs". Ubuntu puts the zvols in /dev/zvol and arch mounted them in /dev. ZFS isn’t licensed under the GPL (it uses CDDL) and can’t join ext4 or BTRFS as an equally treated filesystem in Linux for this reason. ZFS has a performance problem with the zvol volumes. It was mostly painless, but there were a few places that required special configuration. I created custom app and used the device: I'd like to avoid using SMB/NFS/iSCSI to do it, instead I'd like to mount the ZVOL to the host or the LXC and copy the data directly across. That's okay, but I don't know what happened to the partitions that are created on the zvol itself:. In other words, you could have an ext4 formatted ZVOL and mounted to /mnt. zfs directory. My backend consists of ZFS-Vol shared via iSCSI. So far everything is working just fine except for TRIM/UNMAP.
