I was in the middle of rebuilding and resyncing my RAID arrays. I have 2 RAID 1 arrays giving me 8 TByte in total, one 4 TB Array has all our movies and TV series, which we've ripped to the server, as an expanding library of DVDs takes up way too much room, the other has our Music and anything else we have decided to store on the server... like backups.
Anyway the Arrays started getting flakey, and we ended up having what appeared to be 2 failed HDDs, 1 from each of the Arrays, so that each Array had only 1 HDD. So after some trouble shooting I reformated both of the "Faulty" HDDs, and re-added them to the Arrays. One of the HDDs turned out to actually be faulty, it shows that's it's powered up, but the Disk won't spin up. The other is OK, and once I added it back into the Array, it started syncing with the good disk (RAID1, for those that don't know is also known as Mirrored HDDs, they both contain the same data, as a back up for each other in the case that one fails). So the disks are happily syncing, albeit slowly... because the computer is old re-purposed and only has 2Gig of RAM, when suddenly the computer just stops (I'm in the middle of watching a movie).
No amount of swearing cajolling with restart the computer. So today I ring around the local computer stores, and eventually find a nice replacement for the failed computer. Turns out this 1 shop had exactly what I wanted when I purchased the now defunct computer, but at the time could not find anyone who had one. It's a little NUC, it's a bout the size of a CD case and about 30 mm deep, it runs off 19 volts like a laptop, and has 8 Gig of RAM (much better for a File server), so I've hooked it up, restarted the RAID controller and it's now happily re-syncing the good HDD. I'll still have to get a replacement disk for the other Array.
So now we can watch a movie tonight, or catch up with one of the TV series we have ripped to the server.