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Questions tagged [zfsonlinux]

zfsonlinux provides a native Linux kernel port of the ZFS filesystem so that ZFS may run natively on Linux. It is very different from ZFS-fuse which provides ZFS on top of a userspace-filesystem layer. The ZFS On Linux project is hosted on zfsonlinux.org.

zfsonlinux provides a native Linux kernel port of the ZFS filesystem so that ZFS may run natively on Linux. It is very different from ZFS-fuse which provides ZFS on top of a userspace-filesystem layer.

The ZFS On Linux project is hosted on zfsonlinux.org.

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ZFS auto-import using cache file failing

One of my systems has recently had its data-disks recreated on a new pool. However, after a reboot the system hangs on trying to import pools from the cache file. I'm puzzled by this, since I specifically exported the old pool and set the new pools…
Mark
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Upgrade ZFS from 0.7.13 to 0.8.0 on CentOS Linux

I have an CentOS 7.6 machine with zfsonlinux kABI-tracking kmod v.0.7.13 installed. How can I upgrade ZFS to the newest version? yum update says that i´m up-to-date. Thanks
plex88
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Unable to remove drive in ZFS raidZ2

I believe I messed up in replacing a failed drive in my ZFS RaidZ2 pool. I think I forgot to offline the failed drive first and ran the replace command and now it seems to have created a temporary mirrored pool. Any tips on how I can correct this…
JCDenton
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How to resume a "zfs receive" on Debian/stretch?

How do I resume an interrupted ZFS send/receive on Debian/stretch via ZFS on Linux? It seems that the zfs send -t option isn't there.
vog
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System freezes when syslog fills up with "java: page allocation failure"

Ubuntu 16.04 x64bit kernel 4.4.0 cpu:8 , memory:31G , ZFS is main filesystem and cifs share is mounted # sudo numactl --hardware available: 1 nodes (0) node 0 cpus: 0 1 2 3 4 5 6 7 node 0 size: 32157 MB node 0 free: 2301 MB node distances: node 0…
sherpaurgen
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ZFS not installed into upgraded kernel (4.19)

I want to use the latest kernel (currently 4.19) with Ubuntu Server 18.04, and I also want to use ZFS. Although ZFS appears to install correctly, it apparently does not get installed into the right kernel. Is there something additional I need to do…
Stonecraft
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ZFS Faulted Pool Corrupted Data, resilver completed, incorrect paths, io error

I recently encountered a disk failure, for which I got a replacement disk, and successfully replaced the disk as well as completed the resilvering process. I was able to use the raidz2 without issues via samba, but then went to clear the errors as…
Chris6647
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ZFS on linux - L2ARC not being read

Today I did some tests on L2ARC using the latest ZFS on Linux 0.7.10. I have seen that the L2ARC gets filled with data, but with the default module settings the data that is residing in L2ARC cache is never touched. Instead the data is read from the…
Thomas
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ZFS on Linux: clear receive_resume_token pointing to a no longer existing snapshot

I am using syncoid from sanoid project to create copies of ZFS filesystems on a different machine in my test environment (a couple of Raspberry Pi) I messed up with a snapshot on origin machine: one server panicked during a snapshot transfer and…
Qippur
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How can I passively examine the contents of a ZFS send stream?

I have some stored ZFS "send streams" (i.e., they were created by redirecting the output of zfs send to a file). I would like to examine the contents of these streams without receiving and writing them into a filesystem — for example, I'd like to…
ruief
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How to attach a 2-device striped mirror to a pool?

I have a single-drive pool consisting of a 2TB HDD. I have two 1TB drives I can use in mirror - I'd like to add redundancy to my pool. How can I attach these two drives as a single device so that they can be used as a striped mirror? Let's call my…
unfa
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1 SSD + 1 HDD - how should I design my ZFS storage?

I have a PC with a 256 GB M.2 SSD drive used for Linux Mint root, swap and home partitions right now. I have a 2TB HDD for all my data (I keep that separate from home dir actually, because users' home folder has user configuration). I would like to…
unfa
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3TB + 4TB HDD - should I deploy ZFS?

I have a production machine at work that was running on a single 3TB HDD. Now I've added another 4TB drive into it. The 3TB drive has been used for 1,5 years at this point, the 4TB is brand new. I have about 1500 GB of unique data (ignoring backups)…
unfa
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How to delete the pool with state = Faulted?

I have a pool named test_pool and i can only see it when "zfs import" is run. How can i delete this pool and detach associated device from it ? # zpool import pool: test_pool id: 13538020891587345121 state: FAULTED …
sherpaurgen
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ZFS logicalreferenced vs referenced

After sending a zvol from one pool to another I was alarmed to find that only half the data was "there" (according to REFER). Then I noticed on the sent snapshot that referenced is 302G and logicalreferenced is 150G. But after sending it to a new…
chew socks
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