Re: new harddrive degraded speed

[Stefan Monnier <monnier@iro.umontreal.ca>]

> i bought a new harddrive
> western digital red plus 6tb
>
> === START OF INFORMATION SECTION ===
> Model Family:     Western Digital Red
> Device Model:     WDC WD60EFRX-68L0BN1
> Serial Number:    WD-WX62D60C9L6X
> LU WWN Device Id: 5 0014ee 212e6b9ad
> Firmware Version: 82.00A82
> User Capacity:    6,001,175,126,016 bytes [6.00 TB]
> Sector Sizes:     512 bytes logical, 4096 bytes physical
> Rotation Rate:    5700 rpm
> Device is:        In smartctl database [for details use: -P show]
> ATA Version is:   ACS-2, ACS-3 T13/2161-D revision 3b
> SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 3.0 Gb/s)
> Local Time is:    Wed Jan 20 17:12:52 2021 CST
> SMART support is: Available - device has SMART capability.
> SMART support is: Enabled
>
> why is the speed 3.0 gbs i have 4 other drive i have tested with this
> device and they all  use 6.0 gbs

I can't tell you why, but I'd recommend you look at

    dmesg | grep -i ata

It might give you some clues,


        Stefan