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Update 03.03.2015: Added author link and changed the installation procedure to match the latest. I hate searching for something more than 10 minutes … twice. I have some things running…

BTRFS: Fun with BTRFS enabling compression

The initial reason reason for installing BTRFS was that I like the zfs features of snapshots, compression and deduplication. Deduplication under btrfs is possible but somehow external and I don’t…

BTRFS How to make a snapshot and rollback

I’ve mentioned earlier on how to fix the root FS filling up with snapshots generated by apt-get upgrade Now assume I do need to rollback because of whatever went wrong.…

BTRFS and filling up / filesystem with snapshots (@apt-snapshot)

In addition to my ZFS adventures I recently also installed Ubuntu 14.04 with btrfs as root. While the installation was straight forward and went fine I spotted that after some while…

Centos / Debian / LVM: Add a new disk as a LVM volume

If you just added a new Disk to a Linux Box (for example under VMware) you may want to add that one to a LVM to a new Volume Group.…

CentOS / Debian: detect a new disk / lun without rebooting linux

Particularly under VMware you may just add a new disk to linux without the need to reboot the whole thingy. So after adding the new disk as root on the…

CentOS 6.x / Debian / Ubuntu: NFS or SMB/CIFS alternative sshfs

Situation: For whatsoever reason neither NFS nor SMB/CIFS are a runner on the environment. However I need to get permanent access to a shared filesystem. Solution: sshfs http://en.wikipedia.org/wiki/SSHFS It is…

Debian 7.0 Wheezy / Proxmox 3.x: Install ZFS Native

In relation to the outdated post http://www.solaris-cookbook.eu/linux/debian-kanotix-proxmox-install-zfs-native/ Things have become much easier now How to install ZFS native on Debian 7 or Proxmox 3.x 1) become root sudo su –…

Debian / Ubuntu / Centos / Zfs on Linux: ZFS Limit Arc Cache

Talking about ZFS and ARC CACHE Generally ZFS is designed for servers and as such its default settings are to allocate: – 75% of memory on systems with less than…

Proxmox 3.x / Debian 7.0: Backup and Restore (Recover) Proxmox Server configuration

Situation: I used to run a Proxmox 2.x on Debian 6.0 Dev box. I somehow sufficiently manage to corrupt the whole OS and config. I had snapshots and backups to…