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Synology DX513 Diskless System Expansion Unit for Increasing Capacity of the Synology DiskStation
  • Owned For: more than 1 year

5 out of 5 eggs RAID beware: All hard drives are not created equal. 12/30/2012

This review is from: Synology DX513 Diskless System Expansion Unit for Increasing Capacity of the Synology DiskStation

Pros: See other thoughts

Cons: See other thoughts

Other Thoughts: A point to be made to users complaining about constant rebuilds, in particular the person using WD Greens: Not all hard drives are designed to work in a RAID situation. WD Greens are particularly known for poor performance. The problem is they lack a feature WD calls Time-Limited Error Recovery (TLER), other manufacturers have a similar feature under a different name. This feature restricts that amount of time a drive tries to spend recovering from a read error. If the drive spends too long dealing with a read/write error, the raid controller will thing the drive has failed and drop it from the array. More enterprise level drives like the Western Digital Caviar RE's do much better as they have this feature.

I have 5 RE4's in my Synology 1511+ and it's worked like a champ! Never dropped a single disk or had to rebuild.

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Tom M.'s Profile

Display Name: Tom M.

Date Joined: 06/12/06

  • Reviews: 1
  • Helpfulness: 1
  • First Review: 12/30/12
  • Last Review: 12/30/12
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