- Apr 20, 2020
- Beaumaris, Melbourne, Australia
- Real Name
- John ...
Keith, running mirrored disks is the best way of improving read speed, but can (slightly) impact write speed, sometimes. It is also the safest.Obviously with all of this stuff it's a tradeoff between performance and cost. I'm just trying to understand if one component improves performance in a particular area vs. another. For example, say that more/ faster processors in the NAS box is most important for supporting more concurrent users, while faster drives (RPM speed, lets say) improves read speed and a larger cache improves write performance. (Disclaimer: I have no clue if any of the things in the previous statement are at all true — if they are, it's pure chance. I just made up that example to try to understand if there's a correlation between beefing up a particular component and improving performance in a particular area).
In my application the number of users isn't going to be an issue. If there are ever more than 2-3 concurrent users, I would be surprised. I also would be more concerned about improving performance of read speeds than write speeds.
Looking at the Synology it seems there are five basic vectors where they can be beefed up:
Basically, I'm just trying to figure out which upgrades make the most sense in my application. I'd like to avoid spending money on something that is unlikely to move the needle.
- Processor (420+ vs 920+)
- M.2 cache
- Drive speed (RPM)
- Drive cache
Like everything, buy the best you can afford. This offers the best future proofing.
A good 2 bay NAS is far better than a crappy 4 bay one. Use portable USB drives for periodic backup of the NAS - grandfather, father, son rotation is adequate.
Format the disks initially in the NAS using NTFS. This allows read and write in any Windows computer (after W7), and read only in Macs.
The speed of the disks is nowhere near as important as the disks cache size. A 5400 rpm disk with 64MB cache is faster than a 7200 rpm disk with a 4 MB cache ...
Do not stint on RAM or CPU !