BeagleBone Black

I recently bought a BeagleBone Black to replace my Raspberry Pi "server".  It's slightly more expensive, but has a 1GHz ARMv7 CPU compared to the 700MHz ARMv6 in a Pi.  Even compared to a Pi overclocked at 950MHz, the newer instruction set in the BBB would be expected to provide a significant speed increase for CPU-intensive applications...

My very un-scientific comparisons have shown this is indeed the case!  Using BTSync on the Pi, the transfer speed was 2MB/s... on the BBB it's now 3MB/s [both maximums, and both consistently maintained].  Similarly, the upload speed into "CrashPlan Central" has almost doubled having switched.

So in summary - I'm glad I've switched the "server" from a Raspberry Pi to a BeagleBone Black - although the Pi was sufficient, the BBB is faster and more able to deal with my workload!  Now I need to find something else to do with my spare Pi... :-)

Sharing Files Using NFS (Linux's Network File System)

This guide shows you how to quickly and easily set up a network share using NFS on Linux.  The share won't be secured in any way, so only use it on a local network - don't share the files with the internet (unless you really want to!)  [For more in-depth instructions, this is quite a good guide]

Server

Firstly install the NFS server:

sudo apt-get install rpcbind nfs-kernel-server [...]

Mounting a USB Hard Drive on Linux

If you are using a GUI such as KDE or Gnome, USB Hard Drives will usually be mounted automatically - available to be used without any effort.

Unfortunately this isn't generally the case on headless (server) systems.

However it is easy to instruct the system to mount a drive manually, or to edit /etc/fstab so that it will be mounted when your computer boots up... [...]

Reclaiming Reserved Space in Linux

By default, when formatting a partition as ext2/3/4, Linux will reserve around 5% of the space for use by the root user.  This is mainly to avoid non-root users filling up the filesystem, as well as helping to reduce fragmentation.

On external drives, this is less important - especially if the content on those drives is pretty static (e.g. a backup drive) - so we can reclaim the reserved space and gain quite a bit of extra storage (over 185GB on a 4TB drive!)... [...]

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