====== Homeserver migration 2015 ======

==== Why is this upgrade necessary? ====

An upgrade of the home server has been planed for quite a while. The old system is at 85% usage and the hardware is rather old. So it has to be upgraded in the near future anyway. The reason we are doing it now is that there is a hardware failure in the attached storage system which will most likely force a reboot of the home server. In the worst case it might even stop working. So we might as well move everything to a new server before trying to repair the storage system.

==== Before and after... ====

^         ^ old                       ^ new  ^
| Server  | Dell M600 Bladeserver     | Supermicro X9DRD-iF |
| CPU     | 2x Xeon E5430 (2x4cores) | 2x E5-2650 (2x8cores) |
| Memory  | 16GB DDR2 FB-DIMM         | 64GB PC3-12800R |
| Network | 1Gbit (BCM5708S)          | 10 GbE (82599ES) |
| Backend | IBM DS4800 SAN @ 4Gbit/s FC | Areca ARC-1883 @ 6Gbit/s SAS |
| RAID-Level | RAID5 | RAID10 |
| Disks   | 16x 300GB Fibre Channel   | 20x 1TB SSD |
| Capacity | 4TB | 10TB |
| Filesystem | ext4 | ext4 |
| Uptime | since 9th of july 2013 | |