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6 drive Hybrid raid keeps having 1 drive error


epicurean
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On one of the volumes on my xpenology 5.2 (its a VM on esxi), 1 hard drive keeps getting "unallocated". I go into manage, put it back it, and it does its repair. After a few hours, that same drive gets kick out again.

 

what can be the cause? and how do I remedy it?

 

These 6 drives are 6 TB HGST in hybrid raid mode

 

much thanks for any help

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I have an N54L and once upon a time tried a 6 drive RAID using the 4 main ports, the onboard, then an additional PCI RAID card.

I had the same problem. As soon as I removed the PCI drive, everything started working properly.

 

I assume it's down to speeds? PCI card delivers data at a different rate to the rest and so dropped off from time to time.

 

With that in mind, are all 6 devices using the same hardware SATA ports? All on the same mobo or RAID card?

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That brings up a good point, since PCI 32bit maxes out at 133 MByte/s

 

It'll be best not to mix the 4 drives on the PCI controller, with the 4~6 drives from the onBoard SATA controller.

 

Keep them as 2 separate Volumes, and use drive grouping to keep them as 2 separate set of drives.

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