I'm not a person who uses to return products, and I had mine for just two weeks. It was constantly reading/writing to disk. All the time. It wasn't indexing: the QNAP system has a lot of small services and some of them write logs to disk or do god knows what. Given the particular architecture of the NAS processor I wasn't able to install cli tools to analyze the problem further, but at this point I realized the NAS wasn't doing what I wanted in the first place: ease my life and allow me to automate backups.
I ended up adding one of the disks to my PC and the other to a home server.
I must admit though that the QNAP solutions look very helpful if you disregard the abusive disk R/W activity and the inconsistent UI. You may be able to set up complex backup schemes quite fast with it.
If you are interested in virtualization and advanced usage, be sure to get one with an ARM processor at least, because it may be difficult to get packages for it on other obscure architectures.
I ended up adding one of the disks to my PC and the other to a home server.
I must admit though that the QNAP solutions look very helpful if you disregard the abusive disk R/W activity and the inconsistent UI. You may be able to set up complex backup schemes quite fast with it.
If you are interested in virtualization and advanced usage, be sure to get one with an ARM processor at least, because it may be difficult to get packages for it on other obscure architectures.