Hi there.
After messing around with last version of OpenZFS, I decide to create this little tutorial that, I hope, can help one else.
First of all, I have a Proxmox VE 8.3.5 up to date.
Then is necessary install a couple of things:
apt install proxmox-headers-6.11 alien autoconf automake build-essential debhelper-compat dh-autoreconf dh-dkms dh-python dkms fakeroot gawk git libaio-dev libattr1-dev libblkid-dev libcurl4-openssl-dev libelf-dev libffi-dev libpam0g-dev libssl-dev libtirpc-dev libtool libudev-dev parallel po-debconf python3 python3-all-dev python3-cffi python3-dev python3-packaging python3-setuptools python3-sphinx uuid-dev zlib1g-dev git
After that, we need to make a clone from the openZFS repo:
git clone https://github.com/openzfs/zfs
Then, enter the directory zfs and type:
cd ./zfs
git checkout master
sh autogen.sh
./configure
make -s -j$(nproc)
make deb --------------------> if you want some deb packages
Now in this directory, you find some deb packages:
pve-10:~/zfs# ls -l *.deb
-rw-r--r-- 1 root root 1623412 Feb 20 13:14 kmod-zfs-6.11.11-1-pve_2.3.99-189_amd64.deb
-rw-r--r-- 1 root root 323184 Feb 20 13:15 kmod-zfs-devel_2.3.99-189_amd64.deb
-rw-r--r-- 1 root root 20756 Feb 20 13:15 kmod-zfs-devel-6.11.11-1-pve_2.3.99-189_amd64.deb
-rw-r--r-- 1 root root 32006388 Feb 20 13:16 zfs-dkms_2.3.99-189_amd64.deb
I go ahead and install all of them:
apt install ./*deb
It will take a little while, mainly because of the dkms process.
Check the version of the ZFS with:
zfs --version
It should have this output:
pve-10:~/zfs# zfs --version
zfs-2.3.99-189_g6a2f7b384
zfs-kmod-2.3.99-189_g6a2f7b384
Before use the expansion feature, you will need to update the pool:
zpool upgrade POOLNAME
Check if the expansion feature is enable:
zpool get all POOL10 | grep expansion
POOL10 feature@raidz_expansion active local
Now I have a RAIDz pool, like this:
zpool status
pool: POOL10
state: ONLINE
scan: scrub repaired 0B in 00:00:01 with 0 errors on Tue Apr 1 10:07:20 2025
expand: expanded raidz1-0 copied 3.11M in 00:00:03, on Tue Apr 1 10:07:19 2025
config:
NAME STATE READ WRITE CKSUM
POOL10 ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
scsi-0QEMU_QEMU_HARDDISK_drive-scsi1 ONLINE 0 0 0
scsi-0QEMU_QEMU_HARDDISK_drive-scsi2 ONLINE 0 0 0
scsi-0QEMU_QEMU_HARDDISK_drive-scsi3 ONLINE 0 0 0
errors: No known data errors
And I want to grow this pool, adding 3 more disks.
How can I do that?
Just do that:
zpool attach POOL10 raidz1-0 /dev/disk/by-id/scsi-0QEMU_QEMU_HARDDISK_drive-scsi4
Wait for some seconds or minutes, depend on how much data you have in the pool.
Check with the command
zpool status
If the expansion has finnished.
Then, to the same with the other disk:
zpool attach POOL10 raidz1-0 /dev/disk/by-id/scsi-0QEMU_QEMU_HARDDISK_drive-scsi5
Again wait to zfs do it's job and then add the last disk.
zpool attach POOL10 raidz1-0 /dev/disk/by-id/scsi-0QEMU_QEMU_HARDDISK_drive-scsi6
And that is it! You have grow your ZFS POOL!
At the end you see something like this:
zpool status
pool: POOL10
state: ONLINE
scan: scrub repaired 0B in 00:00:01 with 0 errors on Tue Apr 1 10:07:20 2025
expand: expanded raidz1-0 copied 3.11M in 00:00:03, on Tue Apr 1 10:07:19 2025
config:
NAME STATE READ WRITE CKSUM
POOL10 ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
scsi-0QEMU_QEMU_HARDDISK_drive-scsi1 ONLINE 0 0 0
scsi-0QEMU_QEMU_HARDDISK_drive-scsi2 ONLINE 0 0 0
scsi-0QEMU_QEMU_HARDDISK_drive-scsi3 ONLINE 0 0 0
scsi-0QEMU_QEMU_HARDDISK_drive-scsi4 ONLINE 0 0 0
scsi-0QEMU_QEMU_HARDDISK_drive-scsi5 ONLINE 0 0 0
scsi-0QEMU_QEMU_HARDDISK_drive-scsi6 ONLINE 0 0 0
errors: No known data errors
Enjoy.
P.S.: I called it UNOFFICIAL because Proxmox still doesnt official support this kind of thing, but I hope this can be do via WEB GUI, pretty soon.
After messing around with last version of OpenZFS, I decide to create this little tutorial that, I hope, can help one else.
First of all, I have a Proxmox VE 8.3.5 up to date.
Then is necessary install a couple of things:
apt install proxmox-headers-6.11 alien autoconf automake build-essential debhelper-compat dh-autoreconf dh-dkms dh-python dkms fakeroot gawk git libaio-dev libattr1-dev libblkid-dev libcurl4-openssl-dev libelf-dev libffi-dev libpam0g-dev libssl-dev libtirpc-dev libtool libudev-dev parallel po-debconf python3 python3-all-dev python3-cffi python3-dev python3-packaging python3-setuptools python3-sphinx uuid-dev zlib1g-dev git
After that, we need to make a clone from the openZFS repo:
git clone https://github.com/openzfs/zfs
Then, enter the directory zfs and type:
cd ./zfs
git checkout master
sh autogen.sh
./configure
make -s -j$(nproc)
make deb --------------------> if you want some deb packages
Now in this directory, you find some deb packages:
pve-10:~/zfs# ls -l *.deb
-rw-r--r-- 1 root root 1623412 Feb 20 13:14 kmod-zfs-6.11.11-1-pve_2.3.99-189_amd64.deb
-rw-r--r-- 1 root root 323184 Feb 20 13:15 kmod-zfs-devel_2.3.99-189_amd64.deb
-rw-r--r-- 1 root root 20756 Feb 20 13:15 kmod-zfs-devel-6.11.11-1-pve_2.3.99-189_amd64.deb
-rw-r--r-- 1 root root 32006388 Feb 20 13:16 zfs-dkms_2.3.99-189_amd64.deb
I go ahead and install all of them:
apt install ./*deb
It will take a little while, mainly because of the dkms process.
Check the version of the ZFS with:
zfs --version
It should have this output:
pve-10:~/zfs# zfs --version
zfs-2.3.99-189_g6a2f7b384
zfs-kmod-2.3.99-189_g6a2f7b384
Before use the expansion feature, you will need to update the pool:
zpool upgrade POOLNAME
Check if the expansion feature is enable:
zpool get all POOL10 | grep expansion
POOL10 feature@raidz_expansion active local
Now I have a RAIDz pool, like this:
zpool status
pool: POOL10
state: ONLINE
scan: scrub repaired 0B in 00:00:01 with 0 errors on Tue Apr 1 10:07:20 2025
expand: expanded raidz1-0 copied 3.11M in 00:00:03, on Tue Apr 1 10:07:19 2025
config:
NAME STATE READ WRITE CKSUM
POOL10 ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
scsi-0QEMU_QEMU_HARDDISK_drive-scsi1 ONLINE 0 0 0
scsi-0QEMU_QEMU_HARDDISK_drive-scsi2 ONLINE 0 0 0
scsi-0QEMU_QEMU_HARDDISK_drive-scsi3 ONLINE 0 0 0
errors: No known data errors
And I want to grow this pool, adding 3 more disks.
How can I do that?
Just do that:
zpool attach POOL10 raidz1-0 /dev/disk/by-id/scsi-0QEMU_QEMU_HARDDISK_drive-scsi4
Wait for some seconds or minutes, depend on how much data you have in the pool.
Check with the command
zpool status
If the expansion has finnished.
Then, to the same with the other disk:
zpool attach POOL10 raidz1-0 /dev/disk/by-id/scsi-0QEMU_QEMU_HARDDISK_drive-scsi5
Again wait to zfs do it's job and then add the last disk.
zpool attach POOL10 raidz1-0 /dev/disk/by-id/scsi-0QEMU_QEMU_HARDDISK_drive-scsi6
And that is it! You have grow your ZFS POOL!
At the end you see something like this:
zpool status
pool: POOL10
state: ONLINE
scan: scrub repaired 0B in 00:00:01 with 0 errors on Tue Apr 1 10:07:20 2025
expand: expanded raidz1-0 copied 3.11M in 00:00:03, on Tue Apr 1 10:07:19 2025
config:
NAME STATE READ WRITE CKSUM
POOL10 ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
scsi-0QEMU_QEMU_HARDDISK_drive-scsi1 ONLINE 0 0 0
scsi-0QEMU_QEMU_HARDDISK_drive-scsi2 ONLINE 0 0 0
scsi-0QEMU_QEMU_HARDDISK_drive-scsi3 ONLINE 0 0 0
scsi-0QEMU_QEMU_HARDDISK_drive-scsi4 ONLINE 0 0 0
scsi-0QEMU_QEMU_HARDDISK_drive-scsi5 ONLINE 0 0 0
scsi-0QEMU_QEMU_HARDDISK_drive-scsi6 ONLINE 0 0 0
errors: No known data errors
Enjoy.
P.S.: I called it UNOFFICIAL because Proxmox still doesnt official support this kind of thing, but I hope this can be do via WEB GUI, pretty soon.
Last edited: