Storage: ZFS

zfs notes

How to install ZFS-fuse under Proxmox

(Tested with Kernel 2.6.32)

 apt-get install build-essential libaio-dev libattr1-dev libacl1-dev libz-dev libz-dev libfuse-dev libfuse2 scons libssl-dev
 wget -nd http://zfs-fuse.net/releases/0.6.0/zfs-fuse-0.6.0.tar.bz2
 tar jxvf zfs-fuse-0.6.0.tar.bz2
 cd zfs-fuse-0.6.0
 cd src
 scons
 scond install

Fire up ZFS-fuse daemon

 /usr/local/sbin/zfs-fuse

Create Zpool

 zpool create -m /var/lib/vz/images2 /dev/sdb

Create ZFS

 zfs create images2/109

ZFS clone a vm 109 to vm 110

 zfs snapshot images2/109@master
 zfs clone images2/109@master images2/110

Debian GNU/kFreeBSD

As of 2012-02 the squeeze version does not have NFS, so AFAIK can not be used for Proxmox storage. When Debsd has nfs support then I'd use this for storage of iso's and backups to start. In the mean time this works as a samba server..

zfs works much better using Debian/GNU kFreeBSD then fuse.

after installing the system to kvm or hardware:

• add some disks . in KVM i was only able to get ide to work.

• the scsi disks look like:

ls /dev/ad*
/dev/ad10  /dev/ad10s1  /dev/ad10s2  /dev/ad11  /dev/ad12  /dev/ad13

• per http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide - if I read it right - use entire disk not slices for zfs (I assume slices = partitions).

• if the disks have partition tables, then clear them. just not the operating system disk! I used fdisk to clear the tables. This may not be necessary , if it is not then please delete this part.

fdisk /dev/ad11
o
w

then same for ad12 and ad13

• install this

aptitude install zfsutils

• make a pool

zpool create -f  zfs-pool /dev/ad11 /dev/ad12  /dev/ad13

df | grep zfs-pool
zfs-pool       zfs    1.4T   18K  1.4T   1% /zfs-pool

links

• http://wiki.debian.org/Debian_GNU/kFreeBSD
• http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide
• http://hub.opensolaris.org/bin/download/Community+Group+zfs/docs/zfslast.pdf