afs

So I have a problem with my NAS just giving me around 10-15MB/s write and ~20MB/s read. This is a WD EX2 with two WD RED 4TB discs. I've done a lot of troubleshooting, but now I'm completely lost. Connecting the unit directly to a computer with an Ethernet cable gives speeds of over 100MB/s, so...

I'm currently running Sierra on a late 2009 Mac Mini with an SSD. My backup drive is split between Time Machine and Carbon Copy Cloner. It's about time to get a new Mac Mini which will come with High Sierra or if I wait a while with Mohave. I won't be able to afford an upgrade to an SSD, sadly...

My brand new 27” iMac with 2TB Fusion Drive still awaits its new file system. Has this gone to vaperware? Apple failing to test its functionality fully on their own touted tech Fusion Drives before release makes me think they should offer free SSD swaps if it won’t be able to work.

I bought today an external Lacie USB-C 1 TB mechanical drive for backups (not Time Machine), because it was a good deal and I needed an external backup. How should I format this drive? GUID partition scheme? Should I use the new AFS of the old HFS. I am using the up to date High Sierra OS and I...