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Drive recognition


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Just noted something interesting, while wondering why a new N54L with two 4TB Seagate disks only builds parity at 40MB/s.

 

Most subsystems thinks that

/dev/sda = flash thumb drive

/dev/sdb = 4TB disk

/dev/sdc = 4TB disk

 

When using hdparm -t (or -T) to test transfer speeds, then

/dev/sda = 4TB disk

/dev/sdb = flash thumb drive

/dev/sdc = 4TB disk

 

For other hdparm commands, the devices are in the expected order.

 

I have never seen hdparm goof like this on any other system - is there any special driver layer code in unRAID that might give this weird behavior?

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