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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Which zfs permission(s) is/are needed to change readonly status?
zfs get readonly tank/mydata NAME PROPERTY VALUE SOURCE tank/mydata readonly off local zfs set readonly=on tank/mydata echo $? 0 zfs get readonly tank/mydata NAME ...
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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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How to run a command on all ZFS snapshot outputs in FreeBSD?
When I boot into single-user mode and list the ZFS snapshots I'm interested in, I want to revert to the "xfcedesktop" snapshot. However, this requires me to manually type the command zfs ...
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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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pool error on weird file preventing drive replacement
I have a raidz1 array that had a bad disk. And an odd error: errors: Permanent errors have been detected in the following files: pool_02c/movies_tvdvr:<0xdb91> I replaced the drive and it went ...
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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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Openzfs, Linux and nfsv4 acl
On Linux zfs seems to support nfsv4acl zfs set acltype=nfsv4 rpool/ROOT/nas echo $? 0 I create a fs zfs create -o mountpoint=/var/pub rpool/pub and...nothing works nfs4_setfacl -e /var/pub Failed to ...
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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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How to delete multipath (disk) device?
This is on TrueNAS 13.0U6.3 (FreeBSD 13.1-RELEASE-p9) I had a disk in my ZFS pool die. I replaced it, but I updated TrueNAS (Core) first - I think I was on U6.0 or U6.1 before the update. When I try ...
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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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Zfs on Linux: why my snapshot directory is empty?
I can recover a snapshot single file with this way mount -t zfs rpool/ROOT/nas@snap1 /media/hd then cd /media/hd and cp... But some users said is possible to access snapshot without mount it I try ...
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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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How do I set the ACLs/Folder permissions on a zfs dataset to allow SMB share with Samba?
Background info: Linux Mint 22 Installed zfs tools Installed Samba to enable smb sharing I am new to Linux and I'm sure there is just a missing piece somewhere. What I have Done So Far: I created a ...
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Where is ZFS keeping record of my faulted disks?
I had multiple drives in a ZFS array drop due to read errors yesterday. After powering down the machine to swap in a replacement for one of the drives, I was surprised to find that the drives ...
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Why did ZFS import drives that were already labeled as FAULTED?
I am in the process of recovering a degraded array. I just finished backing up the array to a RAID1 mirror, powered down the system, and swapped in my spare for one of the FAULTED disks. To my ...
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