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Debian 7: Installing iSCSI LUN as raw disk (iSCSI initiator)

I have a new Debain 7 server (VM) and would like to use a raw iSCSI Lun on it presented from my QNAP (and put ZFS on it at the end…

QNap NAS and BTSync qpkg: How to manually update BTSync

Update History: 15.10.2014 – Broken qpkg btsync 1.4.76 update to BT Version 1.4.91 BTSync is THE killerapp for my NAS. It seperates me from all the cloud storage flaws out there. Unfortunately…

ZFS: Fun with ZFS – is compression and deduplication useful for my data and how much memory do I need for zfs dedup?

It is widely know that ZFS can compress and deduplicate. The deduplication works across the pool level and removes duplicate data blocks as they are written to disk. This results…

Centos: How to make splunkstorm forwarder autostart at boot.

I love Splunk for log aggregation and searching through it. It’s a great tool that comes is various versions http://www.splunk.com/view/free-vs-enterprise/SP-CAAAE8W  including a limited free cloud based version https://www.splunkstorm.com. I use…

VPS : Basic checks for performance of a VPS and or a Server

There is more than one way to check the performance available on a VPS Server but I go for a 1st quick shot to test if something is falling over.…

CentOS 7.X: How To Install The EPEL Repository

Update 09.09.2014: Updated to epel release 7-2 Update 06.12.2014: Updated the Epel 7-2 location Update 31.07.2015: Updated to Epel 7-5 location CentOS 7 is out and based on CentOS 6.X: How…

Ubuntu / DigitalOcean indicator applet

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…