does Synology(any other than qnap) backup app do individual folders from Dropbox? And backup my music to Dropbox?
-Does Synology do time machine easy way?
I don't know this because I don't have Synology or Qnap but I presume they do this , separate folders.
My NAS have also app to do sync and backup with Dropbox but I didn't use yet because in my dropbox is a real mess, and I need to clean a lot of files. Of course I could do direct backup and sync with NAS and what I delete from NAS could be deleted from dropbox ... but I need some time, also with google drive ... same situation
As Time machine you have in mind ... your MAC backup ... I know because I use MAC and WIN 10 every day and I know this feature. The idea is you can make time machine as normal , only destination file will be on the NAS ... and I THINK depend on the write speed of your hard drives and your network speed. ... and other factors ... like what RAID do you create in your NAS !!! This will be another thing to speak about.
When you expand the drives even if you buy a bigger hard drive to replace old one your NAS will have in the end same space available like in the past with the old hard drive who already changes.
If you want to use the new extra capacity, you need to replace both hard drives with new bigger ones, not in the same time but one after each other ....
This is the tricky part who is "bad" to the other brands in front of Synology ... In Synology , YOU CAN put different drives and he will remix the available capacity every time ....but Synology do not have hardware capabilities of others and is very restrictive to upgrade ( memory and Nmve ) ... from other brands .. you need to buy from their store ...but are some who will work . You are from UK and could buy direct from span.com already upgraded ... or in the next future if you buy from them, I think will help you to upgrade your NAS with "no brand" components...
Synology also is restricted to network speed 1gbe VS 2,5 gbe like qnap and asus ... but they are very strong on RAID flexibility and some apps ... depend of your needs.
But
If you choose to use only 2 bay NAS you don't have much RAID options, at all.
If you buy 2 hard drives you can choose only 2 type of raid.
Raid 0 or RAID 1.
Raid 0 you combine all 2 drives in ONE ... big drive with no possibility of recovery .. if one drive fail , you will lose everything !!!
RAid 1 ... You have 2 drives but you will use only capacity of ONE drive ... the second one is only backup of the first one. You buy 2 drives and use one.
If you buy 4 buy .. you have the oportunity to expand capabilities to RAID 5 or 6 or 10 ....
RAID 5 - capacity of 3 drive in total and only one for backup
RAID 6 - capacity of 2 drive in total and 2 drives for backup
RAID 10- capacity of 2 drives but only 1 for backup with some extended in some special cases 2 drives ( depend which drive will fail ) - this is the raid I use because is the fastest RAID in read / write and it is for multiple access in the same time with hi speed access then RAID 5 or 6 who are slower then 10 ....
I have few years ago a 2 bay NAS ( you know the brand LAcie - is use a lot o MAC world and is expensive also ) who have big failure in one drive and I can't recover almost anything and now I choose 4 bay ... for HOME ...
Also are some reasons to try to buy not the last generation of NAS ... instead to buy old one who are cheap right now and to upgrade to 4 bay ...The differences are in CPU power and memory DD3 instead or DDR4 ... and could be for summarize are the main.
I have also XP machine who is working right now and it is in the best shape ( 20 years and still count ) ... but in this year I upgraded all may 7 pc from house to Win 10 who is another story ... is very very stable and good if you take some time to clean and so ... I respect MAC because I work a lot, but is restricted to me also in playing hirez music ... or movie capabilities ... Win is more flexible in this regard by far ... but in terms of working stuff is perfect
Contact
www.span.com and because is near you and will find a solution. This guy from store is more to Synology / Qnap guy because of surveillance apps and friendly apps of those brands. Also he admit as ASUS have by far the most advanced hardware by default without any upgrade and you will find a lot of apps developed by ASUS or third party to fulfill your need. I prefer reliable hardware and few apps for my needs. It's like android google play store style then Apple store, even I have IPHONE as my usual device every day ...
Now after tweak my Router and network cables, I can watch IN THE SAME TIME with the other users in house, video direct stream 4k UHD / Atmos - 90mbs to TV and soundbar / different Hi rez files music to 2-5 devices / netflix 4k to another room / netflix to ipad / PS4 online gaming / Voip streaming for 2 kids with video / audio and max quality and no glitch / 8-9 wifi devices connected and working perfect with NAS .. email server / word apps / downloading 24/24 files from peer to peer direct to NAS with NAS app and streaming over the internet / OIT devices around home plus voice control and scheduling to start and stop and now I want to start a IP video camera with recording 24/24 for surveillance ... to see how it's working ...and I dont buy the most fast ands expensive hard drives on the market and I have also a lot of space for futures files to backup ( video / audio / photo ) ...
Also you can access your files over the internet even you are in the country or abroad, or check email from your server and work direct with your daily files who are in NAS or you can see transcoded movies from your NAS or downloaded to your NAS from internet when you are in holiday to the beach ... in one box.
The only thing I don't have now is UPS, but in the near future I will achieve one ... right now I have good power but I prefer to invest in the main unit NAS rather then power control and backup, but is good to have. For sure
Best
C