do I need a Raspberry Pi? or a NAS? …

• Raspberry Pi [home page] (a USD35 computer)
• The Pragmatic Bookshelf | Raspberry Pi (a USD11 e-book)
• …

Requirements:

• low power
• fanless / self-cooling
• SSH shell access (?!?)
• file access through SMB, rsync, SFTP
• user accounts
• sudo is not for everybody
• …

Requirements regarding big external disks:

• (I want them)
• RAID-1 (mirroring) (highly desired, going to be a must)
• automatic powering down those disks after a timeout period is a must, and of course powering up on demand as well
• encryption
• …

FRITZ!Box disadvantages:

• the external disk is not encrypted.
• …

(To be continued.)