Arch Linux Infrastructure - NAS - Part 7.3 - Import ZFS to Rockstor
Current Linux Kernel is 4.10 for Rockstor 3.9.1 in this article.
Note: Do not use kABI-tracking kmod kmod-zfs as it’s only for CentOS stock Linux Kernel 3.10 currently.
EL7.4 Package: http://download.zfsonlinux.org/epel/zfs-release.el7_4.noarch.rpm
yum install http://download.zfsonlinux.org/epel/zfs-release.el7_4.noarch.rpm
Fingerprint: C93A FFFD 9F3F 7B03 C310 CEB6 A9D5 A1C0 F14A B620
gpg --quiet --with-fingerprint /etc/pki/rpm-gpg/RPM-GPG-KEY-zfsonlinux
Output:
pub 2048R/F14AB620 2013-03-21 ZFS on Linux <zfs@zfsonlinux.org>
Key fingerprint = C93A FFFD 9F3F 7B03 C310 CEB6 A9D5 A1C0 F14A B620
sub 2048R/99685629 2013-03-21
DKMS ZFS Install
yum install kernel-ml-devel zfs
Enable ZFS Services
systemctl preset zfs-import-cache zfs-import-scan zfs-mount zfs-share zfs-zed zfs.target zfs-import-scan
systemctl start zfs-import-scan
Modprobe
/sbin/modprobe zfs
/sbin/modprobe spl
Reboot
reboot
Check Mounts
[root@rockstor ~]# df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 3.9G 0 3.9G 0% /dev
tmpfs 3.9G 0 3.9G 0% /dev/shm
tmpfs 3.9G 8.8M 3.9G 1% /run
tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
/dev/sdf3 13G 2.2G 9.0G 20% /
tmpfs 3.9G 4.0K 3.9G 1% /tmp
/dev/sdf3 13G 2.2G 9.0G 20% /home
/dev/sdf1 477M 119M 329M 27% /boot
tmpfs 798M 0 798M 0% /run/user/0
/dev/sdf3 13G 2.2G 9.0G 20% /mnt2/rockstor_rockstor
Check ZFS Pools
[root@rockstor ~]# zpool import
pool: ZFSPOOL001
id: 470786607286338326
state: ONLINE
status: The pool was last accessed by another system.
action: The pool can be imported using its name or numeric identifier and
the '-f' flag.
see: http://zfsonlinux.org/msg/ZFS-8000-EY
config:
ZFSPOOL001 ONLINE
raidz1-0 ONLINE
sdb ONLINE
sda ONLINE
sdd ONLINE
Import ZPool.
[root@rockstor ~]# zpool import ZFSPOOL001
cannot import 'ZFSPOOL001': pool was previously in use from another system.
Last accessed by (hostid=a3452e9b) at Sat Sep 2 22:30:14 2017
The pool can be imported, use 'zpool import -f' to import the pool.
[root@rockstor ~]# zpool import -f ZFSPOOL001
Check zpool status.
[root@rockstor ~]# zpool status
pool: ZFSPOOL001
state: ONLINE
status: Some supported features are not enabled on the pool. The pool can
still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
the pool may no longer be accessible by software that does not support
the features. See zpool-features(5) for details.
scan: scrub repaired 0B in 0h19m with 0 errors on Sun Aug 20 00:19:54 2017
config:
NAME STATE READ WRITE CKSUM
ZFSPOOL001 ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
sdb ONLINE 0 0 0
sda ONLINE 0 0 0
sdd ONLINE 0 0 0
errors: No known data errors
pool: freenas-boot
state: ONLINE
status: Some supported features are not enabled on the pool. The pool can
still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
the pool may no longer be accessible by software that does not support
the features. See zpool-features(5) for details.
scan: scrub repaired 0B in 0h3m with 0 errors on Mon Aug 14 03:48:40 2017
config:
NAME STATE READ WRITE CKSUM
freenas-boot ONLINE 0 0 0
sde ONLINE 0 0 0
errors: No known data errors
Check Pool iostats.
[root@rockstor ~]# zpool iostat -v ZFSPOOL001
capacity operations bandwidth
pool alloc free read write read write
---------- ----- ----- ----- ----- ----- -----
ZFSPOOL001 200G 7.93T 22 8 398K 99.9K
raidz1 200G 7.93T 22 8 398K 99.9K
sdb - - 6 2 139K 33.4K
sda - - 8 2 130K 33.3K
sdd - - 6 2 129K 33.2K
---------- ----- ----- ----- ----- ----- -----
Check Mount Points Again.
[root@rockstor ~]# df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 3.9G 0 3.9G 0% /dev
tmpfs 3.9G 0 3.9G 0% /dev/shm
tmpfs 3.9G 8.8M 3.9G 1% /run
tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
/dev/sdf3 13G 2.2G 9.0G 20% /
tmpfs 3.9G 4.0K 3.9G 1% /tmp
/dev/sdf3 13G 2.2G 9.0G 20% /home
/dev/sdf1 477M 119M 329M 27% /boot
tmpfs 798M 0 798M 0% /run/user/0
/dev/sdf3 13G 2.2G 9.0G 20% /mnt2/rockstor_rockstor
ZFSPOOL001 5.2T 128K 5.2T 1% /ZFSPOOL001
ZFSPOOL001/Storage 5.3T 127G 5.2T 3% /ZFSPOOL001/Storage
ZFSPOOL001/jails 5.2T 256K 5.2T 1% /ZFSPOOL001/jails
ZFSPOOL001/jails/.warden-template-pluginjail 5.2T 593M 5.2T 1% /ZFSPOOL001/jails/.warden-template-pluginjail
ZFSPOOL001/jails/.warden-template-standard 5.2T 2.2G 5.2T 1% /ZFSPOOL001/jails/.warden-template-standard
ZFSPOOL001/jails/bacula-sd_2 5.2T 757M 5.2T 1% /ZFSPOOL001/jails/bacula-sd_2
ZFSPOOL001/jails/bareos-fd_1 5.2T 2.5G 5.2T 1% /ZFSPOOL001/jails/bareos-fd_1
ZFSPOOL001/jails/madsonic_1 5.2T 1.1G 5.2T 1% /ZFSPOOL001/jails/madsonic_1
ZFSPOOL001/jails/nextcloud_2 5.2T 1.9G 5.2T 1% /ZFSPOOL001/jails/nextcloud_2
ZFSPOOL001/jails/resilio_1 5.2T 737M 5.2T 1% /ZFSPOOL001/jails/resilio_1
ZFSPOOL001/jails/subsonic_1 5.2T 1.1G 5.2T 1% /ZFSPOOL001/jails/subsonic_1
ZFSPOOL001/jails/syncthing_1 5.2T 745M 5.2T 1% /ZFSPOOL001/jails/syncthing_1
ZFSPOOL001/jails/transmission_1 5.2T 678M 5.2T 1% /ZFSPOOL001/jails/transmission_1
[root@rockstor ~]# cd /ZFSPOOL001
[root@rockstor ZFSPOOL001]# ls
jails Storage
[root@rockstor ZFSPOOL001]# cd Storage
[root@rockstor Storage]# ls
folder001 folder002 folder003
Some Other Stuff
RSync Files From ZFS to BTRFS Mounts
Made a btrfs storage pool on a fresh 8TB Drive for transfer in Rockstor WebGUI.
Storage => Pools => Create Pool
Select options and name fresh attached drive, should see it show up under /mnt2/BTRFSPOOL001/ or whatever it was named.
Name: BTRFSPOOL001
Raid configuration: Single
Compression: No
Mount options: none
Select disks: sdc
Submit
Show Mount Points.
df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 3.9G 0 3.9G 0% /dev
tmpfs 3.9G 0 3.9G 0% /dev/shm
tmpfs 3.9G 8.8M 3.9G 1% /run
tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
/dev/sdf3 13G 2.2G 9.0G 20% /
tmpfs 3.9G 4.0K 3.9G 1% /tmp
/dev/sdf3 13G 2.2G 9.0G 20% /home
/dev/sdf1 477M 119M 329M 27% /boot
tmpfs 798M 0 798M 0% /run/user/0
/dev/sdf3 13G 2.2G 9.0G 20% /mnt2/rockstor_rockstor
ZFSPOOL001 5.2T 128K 5.2T 1% /ZFSPOOL001
ZFSPOOL001/Storage 5.3T 127G 5.2T 3% /ZFSPOOL001/Storage
ZFSPOOL001/jails 5.2T 256K 5.2T 1% /ZFSPOOL001/jails
ZFSPOOL001/jails/.warden-template-pluginjail 5.2T 593M 5.2T 1% /ZFSPOOL001/jails/.warden-template-pluginjail
ZFSPOOL001/jails/.warden-template-standard 5.2T 2.2G 5.2T 1% /ZFSPOOL001/jails/.warden-template-standard
ZFSPOOL001/jails/bacula-sd_2 5.2T 757M 5.2T 1% /ZFSPOOL001/jails/bacula-sd_2
ZFSPOOL001/jails/bareos-fd_1 5.2T 2.5G 5.2T 1% /ZFSPOOL001/jails/bareos-fd_1
ZFSPOOL001/jails/madsonic_1 5.2T 1.1G 5.2T 1% /ZFSPOOL001/jails/madsonic_1
ZFSPOOL001/jails/nextcloud_2 5.2T 1.9G 5.2T 1% /ZFSPOOL001/jails/nextcloud_2
ZFSPOOL001/jails/resilio_1 5.2T 737M 5.2T 1% /ZFSPOOL001/jails/resilio_1
ZFSPOOL001/jails/subsonic_1 5.2T 1.1G 5.2T 1% /ZFSPOOL001/jails/subsonic_1
ZFSPOOL001/jails/syncthing_1 5.2T 745M 5.2T 1% /ZFSPOOL001/jails/syncthing_1
ZFSPOOL001/jails/transmission_1 5.2T 678M 5.2T 1% /ZFSPOOL001/jails/transmission_1
/dev/sdc 7.3T 5.7G 7.3T 1% /mnt2/BTRFSPOOL001
Install tmux to run in the background for transfer.
yum install tmux
Start tmux session.
tmux new -s mytransfer
RSync Args
-r, --recursive recurse into directories
-l, --links copy symlinks as symlinks
-t, --times preserve modification times
-D same as --devices --specials
-v, --verbose increase verbosity
--size-only skip files that match in size
--delete delete extraneous files from dest dirs
--dry-run Test do nothing else!
Copy files.
rsync -rltDv --size-only -P /ZFSPOOL001/Storage /mnt2/BTRFSPOOL001/
Detach from session.
ctrl+b d
Reattach to session.
tmux a -t mytransfer
ZFS REMOVAL
If you want to remove zfs for any reason.
Note: Do not do this unless you no longer require the use of ZFS Pools.
yum remove zfs zfs-kmod spl spl-kmod libzfs2 libnvpair1 libuutil1 libzpool2 zfs-release
find /lib/modules/ \( -name "splat.ko" -or -name "zcommon.ko" \
-or -name "zpios.ko" -or -name "spl.ko" -or -name "zavl.ko" -or \
-name "zfs.ko" -or -name "znvpair.ko" -or -name "zunicode.ko" \) \
-exec /bin/rm {} \;
Written on September 4, 2017