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Re: new harddrive degraded speed



brainfart@posteo.net wrote: 
> 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

That's not the speed, that's the negotiated transfer rate.

Since the drive can't read or write more than 130MB/s anyway -- about 1/3
of the interface speed -- the drive is probably not actually affected.

Also, note that it uses 4096 byte sectors but pretends that they
are 512.

Possible reasons for negotiating 3Gb/s vs 6Gb/s: bad cable, or
cable making tenuous contact, is the number one suspect.

-dsr-


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