I'm using a Wandboard Quad, two SD-Cards and one eSata 3.5" Hard Drive as a Server-System.
With the following Services Tree:
- Code: Select all
Host System: Kernel 3.13, Debian 7.0 armhf Userland.
- serving LXC
Virtual Machine 1: Kolab 3.2
- Groupware
* postfix mail
* cyrus imap
* Roundcube web interface
* Squirrelmail web interface
- ejabberd XMPP
Virtual Machine 2: Mumble
- mumble voice chat daemon
- Debian Packages Repository
Virtual Machine 3: Backup
- rsnapshot / rsync services
- plenty of space on the hard disk
Virtual Machine 4: development
- full source build environment environment
At first, all virtual machines were located at the hard disk. For high write counts while installing, configuring and testing do not harm the SD card. Now it's time to move everything to the SD-Card, so the hard disk can sleep most of the time. The mumble-machine is moved so far. That was easy, because with tmpfs /tmp and /var/log most of the write demand has vanished. The backup-machine is also very easy to move. But the kolab-machine is still on hard disk, there's still some work to do. But I'm confident even the Groupware Server will run from SD-Card soon.