Debian / Kanotix / Proxmox: Install ZFS Native
Install ZFS Native on Kanotix / Debian Squeeze / Proxmox 2.1
This whole thing below is obsolete. I created a new post with up to date details for Debian 7.0 Wheezy
Ok, Ok, I admit, I’m going really crazy now….
as I described here -> Linux: Install Proxmox Virtual Environment on Debian 6.0 Squeeze Distro (Kanopix) I have Proxmov Virtual Environment running on Kanotix Debian.
I now spotted that I’m running slowly low of free disk space. I could mount space from my NAS via NFS-CIFS or ISCSI but that’s kind of too easy and for testing purpose the break to success ratio is too low 🙂 . And BTW I love ZFS. so I install it (cause I want to deduplicate and compress).
Based on Proxmox http://pve.proxmox.com/wiki/ZFS …This is pretty straight forward and almost too easy too.
Kanotix is using Debian and not ubuntu and certainly not the latest ubuntu so we need to choose an earlier dist.
1) become root and add the Key
sudo su - apt-key adv --keyserver keyserver.ubuntu.com --recv-keys F6B0FC61
2) we add the sources
echo "deb http://ppa.launchpad.net/zfs-native/stable/ubuntu saucy main" > /etc/apt/sources.list.d/zfs.list (updated to saucy on 08.2013)
3) make sure you have the headers installed
apt-get update
aptitude install dkms pve-headers-$(uname -r)
4) Create a link for the right sources
Update 12.02.2013 – made it universal for kernel versions
ln -s /lib/modules/$(uname -r)/build /lib/modules/$(uname -r)/source
5) Install ZFS
aptitude install ubuntu-zfs
kernel upgrade
After updating the Kernel you must do the following steps:
aptitude install pve-headers-$(uname -r)
(it will pick the current running kernel version. If you just updated the kernel you better reboot first.)
ln -s /lib/modules/$(uname -r)/build /lib/modules/$(uname -r)/source
# Also replace with the new to be installed kernel version aptitude reinstall spl-dkms zfs-dkms
That should cover you on a kernel update
I choosed ZFS primary because under Proxmox there is one directory in which I store iso images. They are huge but rarely used but also for my OpenVZ containers the compression and deduplication is bringing me a huge saving in space.
I created a zpool called zfs-data
zpool create /dev/sda7 zfs-data
the latest zfs-native uses zpool V28 which supports compression and deduplication which I both intend to use.
I make them default
zfs set compression=on zfs-data zfs setdedup=on zfs-data
They will now be inherited by all to be created filesystems in that zpool.
I create a Zs’ and mount it where I want to have it. In my case under /Proxmox/ZFS
zfs create zfs-data/data
I create another ZFS one for the ISO's
zfs create zfs-data/data/templates zfs set compression=gzip-9 zfs-data
At the end you would like to make sure it gets mounted on time.
This is my zfs list
zfs list NAME USED AVAIL REFER MOUNTPOINT zfs-data 18.7G 41.6G 37K legacy zfs-data/data 18.6G 41.6G 6.97G legacy zfs-data/data/template 11.7G 41.6G 11.7G legacy
You see I made them all legacy in order to be able to mount them with the fstab.
To do so run:
zfs set mountpoint=legacy zfs-data zfs set mountpoint=legacy zfs-data/data zfs set mountpoint=legacy zfs-data/template
ad add it to /etc/fstab
vi /etc/fstab #add zfs-data /zfs-data zfs defaults 0 0 zfs-data/data /zfs-data/data zfs defaults 0 0 zfs-data/data/template /zfs-data/data/template zfs defaults 0 0
and reboot the box to see if it will blend
