Good morning
I have a DS414 with 2x 2TB and 2x 4TB. Now one 2TB hard disk is defective.
1) Does it make sense to replace it with a 4TB?
2) Can you recommend this drive or is it compatible?

Thanks for your help!

Question

Good morning
I have a DS414 with 2x 2TB and 2x 4TB. Now one 2TB hard disk is defective. 
1) Does it make sense to replace it with a 4TB?
2) Can you recommend this drive or is it compatible?

Thanks for your help!

Accepted Answer

I have four of these disks in operation. Top-notch hard disks. Whether a double-sized disk makes sense depends on the raid system. I have formatted the NAS with "Synology Hybrid Raid". With this, a hard disk can fail and no data is lost. But this also means: If I were to insert a fifth 8 TB hard disk in addition to the four times 4 TB hard disks, only 4 TB of this 8 TB hard disk would be used, the rest is "lost". Here you can look up which hard disks make sense for which Raid configuration: https://www.synology.com/de-de/support/RAID_calculator

Answer

The defective disk is a green Western Digital disk 2.0TB SATA /64MB Cache WD20EARX
S/N : WCAZAC519057

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Question about WD Red Plus

Good morning I have a DS414 with 2x 2TB and 2x 4TB. Now one 2TB hard disk is defective. 1) Does it make sense to replace it with a 4TB? 2) Can you recommend this drive or is it compatible? Thanks for your help!