Hi, i have always been a fan of yours, and i have read tons about NAS drives since 2015 when i got my first wd mycloud for my little design office. We have moved on and now we are a 6-people team and we are looking forward to improve our network speed since we work directly on my server (i use my NAS for backup only now and i’m using my fastest pc both for work and as a server at the same time though a 1G network).
I would appreciate some advice on which HDD to pair with a Synology DS1817 NAS and a Netgear XS508M switch. I’m also buying some ASUS XG-C100C network cards for my workstations because we want to move to a 10G network in order to work directly from the NAS and we work with 100mb-2Gb Adobe projects and some video editing which speeds would get vastly improved on a 10G network.
I know in that case it all ends depending on the HDD speeds so I have been looking for the 4Tb Ultrastar to work in pairs for rendundance in case of data loss. And I would like to know if the 256Mb caché they have would mean i don’t need to put ssds in the NAS to work as caché. As you might have realized my priority is get the fastest speeds i can get to use and save the shared files on the Nas by my team.
WD HGST Ultrastar will be as fast as Ironwolf Pro and WD Red Pro, but reliability will be 20-50% better. The other option is Segate Exos drive which is very reliable drive too.
Maybe free recovery service with Ironwolf Pro drives will convince you more then reliability.
Speed-wise all these drives are equally fast.
Cache is the same across all theses drives. But it is quite small and you will not likely benefit from it. Installed SSD will definitely give you better speed improvement. You can either have a NVMe card or dedicated bay or two for SSD.
RAID10 will likely deliver the fastest read and write speeds.
Here is read speed comparison table:
| Model | Read Speed MB/s | Price |
| WD HGST Ultrastar DC HC310 7K6 (512e) | 255 | £134.00 |
| WD HGST Ultrastar DC HC310 7K6 (512n) | 233 | £130.00 |
| WD HGST Ultrastar DC HC310 7K6 (512n) TCG | 233 | £143.00 |
| Seagate Exos 7E8 (Enterprise Capacity 3.5 HDD V.5) (512e) | 226 | £140.00 |
| Seagate Exos 7E8 (Enterprise Capacity 3.5 HDD V.5) (512e SED) | 226 | £143.00 |
| WD Red Pro | 217 | £149.00 |
| Seagate Exos 7E8 (Enterprise Capacity 3.5 HDD V.5) (512n) | 215 | £140.00 |
| Seagate Exos 7E8 (512n) | 215 | £140.00 |
| Seagate Exos 7E8 (Enterprise Capacity 3.5 HDD V.5) (4Kn) | 215 | £143.00 |
| Seagate Exos 7E8 (Enterprise Capacity 3.5 HDD V.5) (512n SED) | 215 | £158.00 |
| Seagate IronWolf Pro (NAS) | 214 | £129.00 |
| WD HGST Ultrastar 7K6000 (512e) ISE | 202 | £141.00 |
| WD HGST Ultrastar 7K6000 (512e) SE | 202 | £141.00 |
| WD HGST Ultrastar 7K6000 (512n) ISE | 202 | £141.00 |
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