ZFS is an integrated filesystem and volume manager, originally designed by Sun

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ZFS - Disk Label Changed

I have a Raidz volume that I have noticed is running in degraded mode. It looks to me as if one of the drives has changed from /dev/sdf1 to /dev/sde1 because the machine only has 3 WD RED 3tb drives ...
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How to import zfs volume

Volume was created awhile back on a freenas box but has since been used on several ubuntu installs and after installing zfs it was always as simple as zpool import. So now I wiped my 15.10 with 16.04 ...
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Package [zfsnap] installed incorrectly - what's what?

On Ubuntu Xenial server, installing zfsnap exists with error status 0. However, the package isn't properly installed: $ zfsnap zfsnap: command not found $ $ sudo dpkg -p zfsnap dpkg-query: package '...
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1answer
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ZFS autoreplace unavailable drive

I have the fallowing ZFS test pool setup in my vm: NAME STATE READ WRITE CKSUM pool DEGRADED 0 0 0 mirror-0 DEGRADED 0 0 0 sdb ...
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Ubuntu ZFS or other file system layout question

I have a system currently setup as a plex server running Ubuntu 16.04 LTS. I am in the process of upgrading the server and was wondering about the best way to layout file systems. I was looking at ...
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Rsync to ZFS --delete only deletes top level?

I'm trying to get rsync to delete files on the ZFS target which have been deleted on the source, but it only works on the /home/boody level and not lower. Source is Mint 17.3 with /home formatted to ...
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2answers
129 views

How do I configure Docker to use ZFS?

I'm trying to get docker to use an existing zpool. According to the Docker documentation I should set my storage driver in /etc/default/docker: DOCKER_OPTS="--storage-driver=zfs" However when I ...
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LXD container disk and block I/O limits. EDIT: Its a zfs pool limit

There is a container running on my system and it is is giving me the (28: No space left on device) error message. I tried to troubleshoot the problem and I see why it probably is complaining: bas@...
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615 views

How to compile Ubuntu 16.04 kernel with zfs module

I build custom Ubuntu kernel with make localmodconfig at the Ubuntu 16.04 lts server with installing zfs and mounted zfs pool. make localmodconfig using config: '.config' zfs config not found!! ...
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211 views

Installation on a ZFS filesystem missing in the installer

There is no ZFS file system option while creating file system but as per release note it supports ZFS. So why this option not available. Please help.
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1answer
67 views

How do I correct zfs pool trying to use incorrect device after reboot?

I recently rebooted a server and after boot one of my zfspools was unavailable. pool: stor4 state: UNAVAIL status: One or more devices could not be used because the label is missing ...
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2answers
187 views

LXD-managed containers (on ZFS) vanish after deleting a different one

I've set up a few containers on Xenial server, using a ZFS dataset for storage (I'm not sure if that's relevant; we'll get to that). They were all working fine. Trying to restart one of them, mail-...
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262 views

Ubuntu 16.04 LTS not automounting ZFS pool after reboot

I recently installed Ubuntu 16.04 LTS on my desktop and wanted to move my existing ZFS pool over. I did that by doing the following: $ sudo apt-get install zfsutils-linux $ sudo zfs mount -vO -a ...
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1answer
163 views

Lxd zfs is not clear what to do

Unfortunately lxd has very short and uncomplete document site... I launched a container on my needs but after many successful and wasted tests ! Now i configured lxd and use zfs file system and ...
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1answer
41 views

zfs mirror /home partition only?

I've just installed a fresh copy of Ubuntu 16.04 and would like to know if it's reasonably possible to ZFS-mirror a pair of PARTITIONS on two matching SSDs to accommodate my /home directory only. I'...
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65 views

Ubuntu 16.04 LTS: zpool destroy'ed pool got re-created after system reboot

Just created a VM of Ubuntu 16.04 LTS to experiment with ZFS. The thing I've done: # cd /home/zerox/local # touch vdev1 # truncate -s 2G vdev1 # zpool create tank /home/zerox/local/vdev1 # zfs ...
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181 views

Enable ZFS ZED Email Notifications on 16.04

As ZFS is now officially supported in Ubuntu 16.04, I would like to enable email notifications for my ZFS pool. Below are the steps I have taken so far, however I am now currently stuck: Installed ...
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5answers
277 views

Syncronizing to NAS fails but works with USB disk

Rsync command: $ rsync -ah --progress --delete /path/* 192.168.1.1:/path/ Gives error ohto@192.168.1.1's password: Could not chdir to home directory /var/services/homes/ohto: ... rsync: failed to ...
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1answer
377 views

ZFS Pools not mounted 16.04

The pool (two 4tb drives) were happily running in 14.10 but after upgrading to 16.04 they stopped. Entering: /sbin/modprobe zfs zpool import Raid zpool status Everything at this point is mounted ...
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1answer
62 views

Use multiple zfs pools in LXD

I have several pools: tank1, tank2 and tank3. How can I make LXD container use designated pool. eg. C1 & C2 use tank1, C3 use tank2, C4 & C5 use tank3?
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1answer
129 views

Send ZFS snapshot to remote machine

Edit: This question originally focused on the issue of reversing the direction of the ssh connection on the transfer, but I came to realize that wasn't what was causing the problems I run into, so I ...
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How can I replace ZFS package from zfsonlinux.org with the ones come with Ubuntu 16.04?

I was using ZFS packages from zfsonlinux.org before 16.04 released. Now Ubuntu 16.04 is released with ZFS built-in. So far zfsonlinux.org packages are still working, but I prefer to use 1st-party ...
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2answers
61 views

Filesystem/RAID configuration to stripe/mirror three hard drives

I have 3 HDDs in my workstation: 1.5 TB (drive "A") 2TB (drive "B") 4TB (drive "C") I am doing a fresh install of 16.04. I would like to find a filesystem/RAID configuration that allows me to ...
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1answer
404 views

zfs ubuntu root,how to boot?

I try to migrate my ext4 root to zfs root. The system is VirtualBox VM three hd,1st hd contain ubuntu TLS 16.04 with 3 partitions (boot,swap,root) second and third hd's are for zfs. So sda1 boot sda2 ...
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1answer
5k views

How to use ZFS on Ubuntu 16.04?

It seem that Ubuntu 16.04 LTS supports the ZFS filesystem. But how do I use it? I'm sorry, I don't know very much about ZFS, but it sounds good. I want it.
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259 views

Ubuntu 16.04 LTS, ZFS, SWRAID and mentoring inquiries

It's been awhile since I have posted in this Ubuntu forums site and now I’m utilizing the mailing list. I also tried to check reddit and after reading the FAQ there, this site is the way to go. I am ...
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2answers
98 views

Can I remove a physical drive from a ZFS virtual device?

Among the new things in 16.04 is the remarkable ZFS file system. The wiki presents some interesting use cases (end of page) but another wiki page mentions that "A device can be added to a [ZFS virtual ...
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3answers
397 views

ZFS filesystem on SSD for normal use

Ubuntu 16.04 will be out soon and it seems ZFS will be natively supported. I have used ext4 for years but have read some of the newer file-systems (like the still fairly experimental btrfs) will have ...
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2answers
135 views

LXD not storing images in ZFS

I configured LXD using existing ZFS pool. I then created a container, which is running correctly. LXD knows about the ZFS storage, because it created two directories there: containers and images. Also,...
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1answer
58 views

If I build a 14.04 server with OpenZFS now will I be able to move to 16.04 later?

I'm planning on building a new home NAS soon. Like my previous one I plan on using ZFS for the large storage pool. I know 16.04 comes out in a few weeks but I might be building sooner rather than ...
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ZFS zpool import in ubuntu taking very long after system crash and reinstall OS

Don't know if the events were related in any way: zpool set to automatically run scrub on crontab, most recent scrub completed a few days ago, 3 unrepairable errors on 3 files. I did not require ...
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34 views

Can't start without systemctl after moving /home

Due to storage limit I recently moved /home, /tmp and /usr directories of an Ubuntu Unity 15.10 installation from independent ext4 partitions to ZFS datasets. This question relates the process I ...
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100 views

Move /home and /usr to ZFS datasets

I installed Ubuntu to an SSD. Setting up specific partitions for /usr, /home and /tmp. This is my /etc/fstab: #Entry for /dev/sda4 : UUID=590649b2-d8ce-489d-975a-0d5415bffbaa / ext4 ...
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1answer
598 views

Is the ZFS 100% sure will be in Ubuntu 16.04LTS?

Some people on reddit say that it may not be in 16.04, will it? I have lost lots of data on XFS, so I am looking foward to the ZFS.
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I Mounted ZFS to /home, but not linked?

Both /home and /tank/home have a folder called main (which is my username). However if I add another folder to /home it does not appear in /tank/home. If I add another folder to /tank/home it does ...
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1answer
101 views

How to use a small SSD with ZFS?

I think I have a pretty good Idea how my TB drives will be laid out in a zpool using ZFS. I also have a 120GB SSD. My intent was to install the program on the SSD. Is that outside the pool? Is ...
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46 views

server hangs when I try to access loop devices on ZFS

If I do: losetup /dev/loop1 ./loop Then for example: fdisk /dev/loop1 Server panics. It works fine on ext4 on the same server. Kernel: 4.2.0-30-generic Apparently it was fixed in zfs 0.6.5., ...
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Ubuntu 15.10 ZFS disk failed

Hello I hope you can help. Some time ago I build myself a large NAS server around Ubuntu and zfs. Start back in 14.xx time. Well recently I upgraded to 15.10. When I did this I ended up reinstall ...
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1answer
134 views

Mount ZFS dataset in unprivileged containers

First a bit of information about my configuration: Ubuntu 15.10 ZFS pool created LXC containers stored in pool/lxc Dataset created in pool/mydataset owned by user1 Now I need one of the containers ...
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1answer
88 views

ZFS with L2ARC use and reliability

I am planning/building an ubuntu server 15.10 which will primarily be used for a NAS. I opted for Ubuntu Server over the likes of FreeNas as in the future I'll be able to use other features and ...
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how to mount a NFs share on 14.04 from FreeNAs

Not sure how to formulate the question since i am quite a newbie but this is my problem and i can't seem to find a solution. I run a Linux-Ubuntu 14.04 on which I have installed Sonar. I want Sonar ...
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3answers
589 views

Problems installing ZFS on Ubuntu 15.10

Trying to install the latest method for installing ZFS on ubuntu and failing miserably. ion@Hades:~$ sudo apt-get install zfsutils-linux After running to install zfs I get problems during the ...
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1answer
68 views

So many users on ZFS pool? Cannot kill them all :( Cannot export pool :(

Hoping someone can help me. I am trying to export my ZFS pool so I can upgrade my Ubuntu from 14.04 to 15.10. I tried doing do-release-upgrade, and lost my pool, on discovering instructions, I have ...
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15.10 loopback file hangs when raw file is zfs

In Ubuntu 15.10, when I create a loopback file,e.g., thus: losetup /dev/loop3 foo and foo is on ZFS, then the system hangs. This does not happen if foo is on an ext4 FS or on /dev/shm, or is a ...
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63 views

Restoring zfs configuration given zpool.cache file backup

I have a backup copy of my zpool.cache file taken prior to upgrading from trusty LTS to 15.10 which, as I understand it, comes with ZFS "out of the box" The upgrade failed due to a known (but not ...
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1answer
393 views

ZFS Pools are not autoloading on Ubuntu 15.10

I have install Ubuntu 15.10 to a USB drive, and while everything works mostly, I have to perform a lot of manual tasks after a reboot. I am using the computer for my media center. There is a similar ...
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47 views

Mount in fstab results in S to Skip during boot

I used fstab to point zoneminder directory to a directory that is maintained under a ZFS pool/dataset. It worked fine in terminal after issuing sudo mount-a but, when I rebooted I got the S to ...
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311 views

Ubuntu 15.10 ZFSUTILS-LINUX

Further to some other discussion regarding getting the zfsutils-linux package working on Ubuntu 15.10, it does not appear that the normal zfs behaviour of automatic mounting during a reboot is yet ...
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1answer
321 views

How to mount a ZFS formatted drive?

I have a FreeBSD drive that I want to retrieve a file from with Ubuntu 14.04 desktop. I installed ubuntu-zfs from this PPA and have been through several tutorials, all of which have covered ...
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Replace boot drive with ZFS pool?

If I have already installed a system that has 3 spare 1TB disks in it, can I create a zfs pool on it and transfer the system to it then boot off it ? Once thats done I could then add the existing disk ...