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

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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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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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37 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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24 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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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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473 views

How to use zfs on ubuntu 16.04?

It seem that the ubuntu 16.04 is support the zfs filesystem. But how to use it? Sorry, i am not very know about zfs. But it sounds good. I want it.
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162 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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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
188 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 ...
2
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1answer
59 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. ...
2
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1answer
41 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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19 views

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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17 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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40 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 ...
3
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1answer
483 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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25 views

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
60 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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30 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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34 views

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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47 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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41 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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57 views

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
404 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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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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32 views

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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45 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 ...
4
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1answer
286 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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34 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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299 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
127 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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29 views

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 ...
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4answers
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ZFS broken after upgrading to 15.10

Upgraded earlier from 15.04 to 15.10, now my ZFS system won't mount. Checking for updates comes up with "Unable to locate package ubuntu-zfs" checking the PPA here it seems that the PPA for 15.10 is ...
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2answers
131 views

Can I manage ZFS with Landscape and MAAS?

I have 5 different servers. I am very interested in installing ZFS across all of them. I also am interested in using JuJu, MAAS, and Landscape to automate the installation of ZFS, and the management ...
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2answers
244 views

How do I move /home/user to a zfs pool?

ubuntu 14.04 installed on 128Gb ssd zfs pool ("zfshome") across 3x3TB disks, containing audio/video/tv etc. I originally built this as a nas4free NAS serving my windows boxes around the house.I'm now ...
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1answer
486 views

How to avoid manually reinstalling zfs after kernel update

I use ZFS and everytime the kernel is updated, ZFS is broken and the mounts are missing. I always have to follow this procedure, that I found on the net ...
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zfs and power failure

After serveral power failures my zfs raidset got pretty screwed up. Disks got kicked out and got back in again. Now my raidset looks like this. pool: datastore state: DEGRADED status: One or more ...
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63 views

DRBD write over boundaries of zvol?

Running two 14.04 LTS servers with drbd and heartbeat using zfs under drdb. Created a zvol with 1.5TB and xfs to format the zvol then nfs shared out to clients. For unknown reason 1.94TB was being ...
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3answers
730 views

ZFS root filesystem

I've been trying to install ubuntu with a zfs as root filesystem. But it seems that GRUB 2.xx which has ZFS support doesen't support compression, so i disabled it. However i keep running in to the ...
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Failed to load ZFS module stack but spl and zfs modules are compatible and installed

On ubuntu 14.04 LTS: $ zfs set compression=lz4 ars/homes Failed to load ZFS module stack. Load the module manually by running 'insmod /zfs.ko' as root. $ dkms status|egrep "zfs|spl" spl, 0.6.4.2, ...
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2answers
72 views

Can Juju interact with already installed Openstack service?

(I didn't find any answer to my question after having looked in a lot of posts) I'm currently deploying an Openstack private cloud. - I would like to run Solaris 11.2 (or OpenIndiana/similar) on my ...
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101 views

File Based Zpool Won't Mount

I've created a zpool with the commands: POOL_NAME=flocker POOL_FILE=/var/opt/flocker/pool-vdev sudo dd if=/dev/zero of=$POOL_FILE bs=4k count=1 seek=5M sudo zpool create $POOL_NAME $POOL_FILE The ...
0
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1answer
62 views

ZFS Raid1z Disk Replace

I have been running ZFS Raid1z with 5 disk under Ubuntu 12.04 for 3 years now with no problems at all. Unfortunately the day of failing disk has come. I have lost a disk in the array, he simply went ...
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How to check ZFS Zpool is set up correctly?

I have just created a RAIDZ1 group of 3 x 2TB disks acc@CODAAMOK304:~$ sudo zpool status pool: storage state: ONLINE scan: none requested config: NAME STATE READ WRITE CKSUM ...
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Why are some of my devices in /dev/mapper symlinks while others aren't?

I have the following: ls -l /dev/mapper ...[snip] lrwxrwxrwx 1 root root 7 May 15 03:21 md1_crypt -> ../dm-0 lrwxrwxrwx 1 root root 7 May 15 03:21 md2_crypt -> ../dm-9 brw-rw---- ...
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2answers
131 views

ZFS with existing data on 1 HDD

I'm thinking about adding a ZFS Raid-5 to my Ubuntu Server (Home use only). Currently, I have 2 HDD, 1 is 120GB for OS and the other is 4TB for download and torrent. I will purchase an addition HDD ...
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1answer
77 views

Restore ZFS automount

I've upgraded to 15.04 and I found the package ubuntu-zfs to be broken on systemd. I found the bug description on GitHub but I don't know how the procedure to be done as described: The correct ...
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1answer
848 views

zfs broken after upgrading package spl

Just now I did an apt-get upgrade, which upgraded package spl to 0.6.4.1. After rebooting, my zfs-formatted disk failed to mount. How should I regain zfs functionality? All zfs commands are now ...
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1answer
90 views

how to check if zfs is using the kernel module

I am having perfomance troubles (transfer rates only about 50MB/s using 6 2TB server hdds WDC WD2003FYYS, each doing app 150 MB/s) with my raidz and was hoping to increase it with the ZFS on Linux ...
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1k views

ZFS - Always Out of Memory

I read that ZFS was set to use all physical memory except 1GB on systems that have 4GB or more. Since I have virtual machines running my home-server that is running the ZFS filesystem, I wanted to ...