Best HDD for Synology DS918+

Best HDD for Synology DS918+. I want to know which brand of HDD is the best for Synology 918+. Also, what RPM? Because I read that 7200RPM make sound, and it runs out quickly. Also, Seagate 10 TB have problem with the Caches?

It depends what you are using this NAS for. Simple file server or Multimedia would require nothing more then regular NAS drives like WD Red and Seagate Ironwolf. If there will be 20 or more users using it, you may consider getting faster drives like WD Red Pro or Ironwolf Pro or even Exos drives. You may also consider NVMe cache in this case. If you do plan on runing web server or virtual machines then SSD cache or even 2.5inch SATA SSD would be recommended instead of regular HDDs. Cache what you find built inside the drives themselves do not play a significant role since RAID does not know how to utilise this storage unit.

Best NVMe cache for M.2 slots will be Samsung EVO 960 and 970. For big user base and heavy use EVO Pro or Plus series SSD.

 

I hope this helps.

 

 

Here are the cheapest WD drives

url Price/TB Price Capacity MTBF RPM read/write Bells(idle/seek) Watt cache
Western Digital WD Red WD40EFAX 3.5″ SATA 6Gb/s 4TB 5400rpm [Not recommended – use only for 1&2 bays NAS] £23.75 £95 4TB 1M hours MTBF 5400 180/ 2.3/2.7 4.8 256
Western Digital WD Red WD40EFRX 3.5″ SATA 6Gb/s 4TB 5400rpm £25 £100 4TB 1M hours MTBF 5400 150/ 2.5/2.8 4.5 64
Western Digital WD Red WD80EFAX 3.5″ SATA 6Gb/s 8TB 5400rpm £25.5 £204 8TB 1M hours MTBF 5400 210/ 2.7/2.9 8.8 256
Western Digital WD Red WD140EFFX 3.5″ SATA 6Gb/s 14TB 5400rpm £27 £378 14TB 1M hours MTBF 5400 210/ 2.0/2.9 6.5 512
Western Digital WD Red WD101EFAX 3.5″ SATA 6Gb/s 10TB 5400rpm £27 £270 10TB 1M hours MTBF 5400 210/ 2.0/2.9 5.7 256
Western Digital WD Red WD120EFAX 3.5″ SATA 6Gb/s 12TB 5400rpm £27.83 £334 12TB 1M hours MTBF 5400 196/ 2.0/2.9 6.3 256
Western Digital WD Red WD60EFAX 3.5″ SATA 6Gb/s 6TB 5400rpm[Not recommended – use only for 1&2 bays NAS] £28 £168 6TB 1M hours MTBF 5400 180/ 2.3/2.7 4.8 256
Western Digital WD Red WD30EFRX 3.5″ SATA 6Gb/s 3TB 5400rpm £28.33 £85 3TB 1M hours MTBF 5400 147/ 2.3/2.7 4.1 64
Western Digital WD Red WD30EFAX 3.5″ SATA 6Gb/s 3TB 5400rpm [Not recommended – use only for 1&2 bays NAS] £28.33 £85 3TB 1M hours MTBF 5400 180/ 2.3/2.7 4.8 256
Western Digital WD Red WD100EFAX 3.5″ SATA 6Gb/s 10TB 5400rpm £28.8 £288 10TB 1M hours MTBF 5400 210/ 2.0/2.9 5.7 256
Western Digital WD Red WD60EFRX 3.5″ SATA 6Gb/s 6TB 5400rpm £29 £174 6TB 1M hours MTBF 5400 175/ 2.5/2.8 5.3 64
Western Digital WD Red WD80EFZX 3.5″ SATA 6Gb/s 8TB 5400rpm £29.88 £239 8TB 1M hours MTBF 5400 175/ 2.0/2.9 6.4 128
Western Digital WD Red Pro WD141KFGX 3.5″ SATA 6Gb/s 14TB 7200rpm £31.79 £445 14TB 1M hours MTBF 7200 255/ 2.0/3.6 6.2 512
Western Digital WD Red Pro WD101KFBX 3.5″ SATA 6Gb/s 10TB 7200rpm £33.4 £334 10TB 1M hours MTBF 7200 240/ 2.0/2.9 5.7 256
Western Digital WD Red Pro WD8003FFBX 3.5″ SATA 6Gb/s 8TB 7200rpm £33.88 £271 8TB 1M hours MTBF 7200 235/ 2.9/3.6 8.8 256
Western Digital WD Red Pro WD102KFBX 3.5″ SATA 6Gb/s 10TB 7200rpm £33.9 £339 10TB 1M hours MTBF 7200 240/ 2.0/2.9 5.7 256
Western Digital WD Red WD20EFRX 3.5″ SATA 6Gb/s 2TB 5400rpm £34 £68 2TB 1M hours MTBF 5400 147/ 2.3/2.4 4.1 64
Western Digital WD Red Pro WD121KFBX 3.5″ SATA 6Gb/s 12TB 7200rpm £34.08 £409 12TB 1M hours MTBF 7200 240/ 2.0/2.9 6 256
Western Digital WD Red Pro WD6003FFBX 3.5″ SATA 6Gb/s 6TB 7200rpm £34.17 £205 6TB 1M hours MTBF 7200 238/ 2.9/3.6 7.2 256
Western Digital WD Red WD20EFAX 3.5″ SATA 6Gb/s 2TB 5400rpm [Not recommended – use only for 1&2 bays NAS] £35.5 £71 2TB 1M hours MTBF 5400 180/ 2.1/2.6 4.1 256
Western Digital WD Red Pro WD4003FFBX 3.5″ SATA 6Gb/s 4TB 7200rpm £37.75 £151 4TB 1M hours MTBF 7200 217/ 2.9/3.6 7.2 256
Western Digital WD Red Pro WD2002FFSX 3.5″ SATA 6Gb/s 2TB 7200rpm £53 £106 2TB 1M hours MTBF 7200 227/ 2.9/3.6 9.1 128
Western Digital WD Red WD10EFRX 3.5″ SATA 6Gb/s 1TB 5400rpm £54 £54 1TB 1M hours MTBF 5400 150/ 2.1/2.2 3.3 64
Western Digital WD Mobile Red WD7500BFCX 2.5″ SATA 6Gb/s 750GB 5400-7200 £66.67 £50 750GB 5400-7200 144/ 2.4/2.5 1.4 16
Western Digital WD Mobile Red WD10JFCX 2.5″ SATA 6Gb/s 1TB 5400-7200 £72 £72 1TB 5400-7200 144/ 2.4/2.5 1.4 16

Here are the cheapest Seagate drives

Price/TB Price Capacity MTBF RPM read/write Bells(idle/seek) Watt cache W
Seagate IronWolf (NAS) ST12000VN0008 3.5″ SATA 6Gb/s 12TB 7200rpm £21.75 £261 12TB 1M hours MTBF 7200 210/ 1.8-2.0/2.6-2.8 7.8 256 3yr
Seagate IronWolf (NAS) ST4000VN008 3.5″ SATA 6Gb/s 4TB 5900rpm £22.75 £91 4TB 1M hours MTBF 5900 180/ 2.3/2.5 4.8 64 3yr
Seagate IronWolf (NAS) ST8000VN004 3.5″ SATA 6Gb/s 8TB 7200rpm £24.25 £194 8TB 1M hours MTBF 7200 210/ 2.8/3.2 6.8 256 3yr
Seagate IronWolf (NAS) ST10000VN0008 3.5″ SATA 6Gb/s 10TB 7200rpm £24.3 £243 10TB 1M hours MTBF 7200 210/ 1.8-2.0/2.6-2.8 7.8 256 3yr
Seagate IronWolf (NAS) ST8000VN0022 3.5″ SATA 6Gb/s 8TB 7200rpm £24.5 £196 8TB 1M hours MTBF 7200 210/ 2.7/2.8 9 256 3yr
Seagate IronWolf (NAS) ST3000VN007 3.5″ SATA 6Gb/s 3TB 5900rpm £25.67 £77 3TB 1M hours MTBF 5900 180/ 2.3/2.5 5.6 64 3yr
Seagate IronWolf (NAS) ST6000VN0033 3.5″ SATA 6Gb/s 6TB 7200rpm £25.83 £155 6TB 1M hours MTBF 7200 210/ 2.7/2.8 8.8 256 3yr
Seagate IronWolf (NAS) ST16000VN001 3.5″ SATA 6Gb/s 16TB 7200rpm £25.94 £415 16TB 1M hours MTBF 7200 210/ 2.8-3.0/3.2-3.4 7.9 256 3yr
Seagate IronWolf (NAS) ST6000VN001 3.5″ SATA 6Gb/s 6TB 5400rpm £26.17 £157 6TB 1M hours MTBF 5400 190/ 2.6/2.7 5.3 256 3yr
Seagate IronWolf Pro (NAS) ST16000NE000 3.5″ SATA 6Gb/s 16TB 7200rpm £26.5 £424 16TB 1.2M hours MTBF 7200 250/ 2.8-3.0/3.2-3.4 7.6 256 5yr
Seagate IronWolf Pro (NAS) ST12000NE0007 3.5″ SATA 6Gb/s 12TB 7200rpm £26.75 £321 12TB 1.2M hours MTBF 7200 250/ 2.8-3.0/3.2-3.4 7.8 256 5yr
Seagate IronWolf (NAS) ST12000VN0007 3.5″ SATA 6Gb/s 12TB 7200rpm £26.83 £322 12TB 1M hours MTBF 7200 210/ 2.8-3.0/3.2-3.4 7.8 256 3yr
Seagate IronWolf Pro (NAS) ST8000NE001 3.5″ SATA 6Gb/s 8TB 7200rpm £26.88 £215 8TB 1.2M hours MTBF 7200 214/ 1.8/2.8 9.8 256 5yr
Seagate IronWolf (NAS) ST14000VN0008 3.5″ SATA 6Gb/s 14TB 7200rpm £26.93 £377 14TB 1M hours MTBF 7200 210/ 2.8-3.0/3.2-3.4 7.9 256 3yr
Seagate IronWolf Pro (NAS) ST12000NE0008 3.5″ SATA 6Gb/s 12TB 7200rpm £27.58 £331 12TB 1.2M hours MTBF 7200 250/ 2.8/3.2 7.8 256 5yr
Seagate IronWolf Pro (NAS) ST14000NE0008 3.5″ SATA 6Gb/s 14TB 7200rpm £27.86 £390 14TB 1.2M hours MTBF 7200 250/ 2.8-3.0/3.2-3.4 7.6 256 5yr
Seagate IronWolf Pro (NAS) ST10000NE0008 3.5″ SATA 6Gb/s 10TB 7200rpm £27.9 £279 10TB 1.2M hours MTBF 7200 214/ 2.8/3.2 7.8 256 5yr
Seagate IronWolf Pro (NAS) ST6000NE000 3.5″ SATA 6Gb/s 6TB 7200rpm £29.67 £178 6TB 1.2M hours MTBF 7200 214/ 2.8-3.0/3.2-3.4 8.1 256 5yr
Seagate IronWolf Pro (NAS) ST10000NE0004 3.5″ SATA 6Gb/s 10TB 7200rpm £30.2 £302 10TB 1.2M hours MTBF 7200 214/ 2.8-3.0/3.2-3.4 6.8 256 5yr
Seagate IronWolf Pro (NAS) ST8000NE0004 3.5″ SATA 6Gb/s 8TB 7200rpm £30.63 £245 8TB 1.2M hours MTBF 7200 214/ 1.8/2.8 7.4 256 5yr
Seagate IronWolf Pro (NAS) ST6000NE0023 3.5″ SATA 6Gb/s 6TB 7200rpm £32.5 £195 6TB 1.2M hours MTBF 7200 214/ 2.8-3.0/3.2-3.4 8.1 256 5yr
Seagate IronWolf (NAS) ST2000VN004 3.5″ SATA 6Gb/s 2TB 5900rpm £33 £66 2TB 1M hours MTBF 5900 180/ 1.9/2.1 5 64 3yr
Seagate IronWolf Pro (NAS) ST4000NE001 3.5″ SATA 6Gb/s 4TB 7200rpm £33.25 £133 4TB 1.2M hours MTBF 7200 214/ 2.8-3.0/3.2-3.4 9 128 5yr
Seagate IronWolf Pro (NAS) ST4000NE0025 3.5″ SATA 6Gb/s 4TB 7200rpm £36.5 £146 4TB 1.2M hours MTBF 7200 214/ 2.8-3.0/3.2-3.4 8.5 128 5yr
Seagate IronWolf Pro (NAS) ST2000NE001 3.5″ SATA 6Gb/s 2TB 7200rpm £37 £74 2TB 1.2M hours MTBF 7200 195/ 2.2-2.4/2.6-2.8 7.5 128 5yr
Seagate IronWolf Pro (NAS) ST2000NE0025 3.5″ SATA 6Gb/s 2TB 7200rpm £38.5 £77 2TB 1.2M hours MTBF 7200 195/ 2.2-2.4/2.6-2.8 7.5 128 5yr
Seagate IronWolf (NAS) ST1000VN002 3.5″ SATA 6Gb/s 1TB 5900rpm £44 £44 1TB 1M hours MTBF 5900 180/ 2.1/2.3 3.6 64 3yr
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