QNAP TS-646 – or did you mean TS-664 ?
( I will continue as if you meant TS-664. Advise if not)
If you have 6 bays and are thinking of using 4 for media (if that’s going to be enough), then may I suggest:
M.2 SSDs
- WD-SN750’s are on the approved list, WD-SN850X’s are the successor. WD-SN850x 4TB - 2280 ( 2400 TBW ) would provide you at least 5 GB/sec performance
- I would not use the version with heat sinks. WD heatsinks are tall. Instead, I would get heatsinks direct from QNAP. QNAP heat sinks are shorter and allow airflow from multiple directions (better than WD)
Heatsinks are not included with the NAS and must be purchased separately. For
details, contact an authorized reseller or go to https://shop.qnap.com/.
Setup & Config
- Install the QNAP heatsinks on the SSD
- Install the SSD in the first SSD 2280 slot
- If you’re going to install more memory, now would be the time (Also from the QNAP shop – or elsewhere if you know which memory to get )
- When done, close it back up
- With NO HDDs in the unit,
- Install QTS on the M.2 SSD (This will be DataVol1)
- Shut it down,
- Insert the HDDs in their carriers and into the NAS
This is point of discussion -
- RAID is not backup.
- HOWEVER, Dual parity (RAID 6) allows two drives to fail without data loss therefore giving you more time to replace failed drive(s) and rebuild.
- Having 6 drives to share the Transcoder Temp load is better than 5
– 5 drives @ 100 MB/sec worst case = 4000 Mbps of video transcoding
– 6 drives @ 100 MB/sec worst case = 4800 Mbps of video transcoding
– Putting the transcoder temp on HDD saves wear and tear on the SSD which does have a finite life. - This is a decision point. I don’t know your planned usage and how much transcoding you’ll be needing.
– Spread the transcoding load over 6 HDDs
-or-
– Put it on that 2.4 Petabyte lifespan SSD.
Final step:
- Install the HDDs
- Power it up
- Create DataVol2 ( RAID-6 ?? ) ext4 formatting, Increase inode size to max
Questions ?
