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Unraid 2020 Feature Request Wishlist

Unraid 2020 Wish List  

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28 minutes ago, RealActorRob said:

Writing incoming data to all drives at once for throughput then it collects the pieces and reassembles them on to the high water drive as it does now when the array is more idle. 

This is pretty much the function of cache. SSD as cache will give as much throughput as your NIC can support.

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18 hours ago, trurl said:

This is pretty much the function of cache. SSD as cache will give as much throughput as your NIC can support.

Truth, but then you have to buy that drive, it counts against your license limit, takes up a port, etc. Plus a small amount of power usage...yes, very small. 

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1) even if an algorithm could be found that might implement this it would almost certainly be much slower than normal writes to the array since as parity is updated in real time you would end up with the parity drive having to continually move the disk heads between tracks.

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also sounds disturbingly like a software RAID4 type implementation.  SSD cache drive is far faster, cheaper, already implemented, and reliable.

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