Questions tagged [zfs]
ZFS is a combined file system and logical volume manager designed by Sun Microsystems The features of ZFS include protection against data corruption, support for high storage capacities, efficient data compression, integration of the concepts of filesystem and volume management, snapshots and copy-on-write clones, continuous integrity checking and automatic repair, RAID-Z and native NFSv4 ACLs.. -Wikipedia
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Alpine linux failed kernel upgrade and unresponsive keyboard in recovery shell
I tried to upgrade my alpine linux kernel version from linux-lts to linux-stable because support for a device I am installing was added in a newer kernel version.
I changed the apk repositories from ...
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Zfs on Linux: How umount and destroy snapshot?
I have this situation
zfs destroy -r rpool@1-9-2025
cannot destroy snapshot rpool/ROOT/nas@1-9-2025: dataset is busy
So..
umount -v /root/.zfs/snapshot/1-9-2025
umount: /root/.zfs/snapshot/1-9-2025 (...
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How do I get FreeBSD multiboot to work with zfs
I have one hard drive that I want to split into two separate FreeBSD OS installs and I'm running into a wall trying to figure out how to get it working.
I followed Installing FreeBSD Root on ZFS using ...
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ZFS (ZoL). New VDEVs with larger disks: OK or not?
Can I sanity check something, please?
I have a single ZFS pool, containing multiple RAIDZ2 VDEVs, each of six disks
One of the SAS JBODs has empty bays in it
I'd like to expand the pool[1] by filling ...
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Mapping file UIDs when mounting ZFS on linux
I have a ZFS filesystem on an external drive, but the user ID of my accounts don't match between computers. Is there a way to map the UID when mounting (without actually changing it on the filesystem) ...
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CachyOS (Arch linux based) ZFS root with GRUB on legacy BIOS
I'm trying to install Cachyos on zfs raidz with 4 hdd 6Tb each.
Hardware is HP Microgen 8.
The system boots and goes to restart after the message "Loading initial ramdisk".
Any idea what I ...
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ZFS refusing to import healthy pool
I'm hoping someone can help me out of this problem.
I run a zfs pool comprised of 4 2tb drives. At some point the controller failed, and the pool went offline. knowing it's just a faulty controller, I ...
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Why is my ZFS read performance tanking for RND4K reads and writes compared to an XFS partition on the same drive?
I have a pair of NVMe Crucial P5 Plus partitioned with an mdadm RAID1 partition formatted as XFS for / and another ZFS RAIDZ1 partition for the remainder of the disk.
Performance of the XFS partition ...
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Zfs and Solaris 10: a "nice" redundand clone and snapshot situation
I have this situation now
zfs list -t snapshot|grep prova
provapool/fs2@oggi 1K - 31K -
provapool/fs3@domani 19K - 32K -
provapool/fs5@domani 1K ...
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ZFS send much slower than before
With the exact same devices (computer, external hard drive…), my ZFS backup (via zfs send | zfs recv) takes much longer than before. Now, it takes around 1.5 to 2.2mn to copy 1Go, but before I think ...
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Can I uninstall ZFS if using ext4 for everything?
I have never used ZFS for anything (that I know of).
To my surprise, there are 4 packages installed by default on my new installation of Linux Mint 22 (Cinnamon).
Naturally my question is, if I can ...
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RHEL8 conditional automatic updates
I was tasked to setup automatic updates on some high-performance RHEL8 workstations & servers.
I don't like it, as a lot of things can go wrong with unattended updates, but well, it seems like ...
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Right way to recursively share a path (like a symlink) and proper way to unmount/remount without messing with other mount points
Bind mounts seem to be hard. I am looking for the right way to use a bind mount to mount a given directory to another one pretty much like a symlink (but I can't use a symlink because my application ...
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lsblk can see all drives attached but udev only shows half of them. Conflicting indentifiers?
I'm trying to make a zfs pool on a terramaster D8 Hybrid DAS connected via USB with 4x HDD and 4x NVME drives using this guide. When i try to build the get the drive ids to build the zpool, not all of ...
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Storing large amount of small files in HDD pool
I have a Z6 HDD pool with 6 x 18T drives and a SLOG, LZ4 compression is enabled by default. Now I need to store large amount of small files and I'm worried about fragmentation.
The files:
70K files ...
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How to replicate an entire disk using ZFS
I have 2 x 2TB disks (they are not equal). In the master I have my ZFS pool (rpool, where Proxmox is installed in). I'd like to clone/replicate the entire disk on the slave once a day.
How can I do?
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ZFS: Keyformat required for new encryption root
I am trying to create a filesystem in ZFS with the following command:
zfs create -o compression=on -o recordsize=1M -o encryption=on pool/dataset
I am unable to do so, since I receive the following ...
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Adding a fresh zfs sub-dataset pri_zp/Z1/Z99-future to pri_zp/Z1, and resuming recursive replication to sec_zp/Z1
I have set up and replicated the OpenZFS dataset pri_zp/Z1 (with pri_zp/Z1/Z00-initial) to sec_zp/Z1 using a zfs send -R.
But then (months later) when I try to create (and replicate) a newer data set, ...
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ZFS error while mounting an encrypted partition
ZFS errors, I dont know why. Here are the step-by-step actions I took to attempt to mount the encrypted ZFS disk.
$ sudo zfs list
NAME USED AVAIL ...
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Unable to mount encrypted ZFS filesystem after reboot
Key load error: Failed to open key material file: Input/Output Error.
Command: `mount -o zfsutil -t zfs rpool/ROOT/ubuntu_uy913 /root/`.
Message: `zfs_mount_at() failed: encryption key not loaded`.
`...
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Controller failure on ZFS pool
I am running ZFS on an old Sun Fire X4170M2 connected to Sun StorageTek 6140 expansion shelves (i.e. JBOD). We had a hardware failure this morning.
This is the current state of our pool:
pool: tww
...
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Not able to use drbd over lustre zfs
I am running the below command to format the nvme drive to lustre with backfstype as zfs
mkfs.lustre --mdt --reformat --mgsnode=mgsmaster@tcp --backfstype=zfs --fsname=lustre mdtpool/mdt --index=0 /...
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How do I stop and close these processes listening on sunrpc port? Presumably for proper zfs operation
I have a zfs volume that is automounted at startup. Doing an lsof -i shows systemd pid 1 listening on the sunrpc port for tcp and udp. There's an rpc.mount and rpcbind that shows up as well during ...
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How to access/import/mount a zfs file
I've asked my wordpress hosting provider to give me a snapshot of the server as I'm looking to migrate the site elsewhere. What I've been given is a .zfs file.
I was completely unaware of what zfs was ...
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Installing Grub on btrfs /boot when root is on ZFS
I'd like to use Grub for booting my Linux system. The system has its root filesystem on a ZFS dataset, it has the usual EFI boot partition, and a btrfs partition that can be used as /boot. When the ...
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