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Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
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WD Elements SE 25FE (WD10SMZW) spike in last ~40GB

June 7th, 2018, 1:04

Image

Can anyone offer an explanation for this result?

Looks like it starts 40GB into the physical drive and wraps back around at the end.

Is this an artifact of some kind of feature like Seagate's MediaCache? (I know a MediaCache drive doesn't produce a graph white like this)

I have two of these drives and they both look exactly the same. First noticed it while transferring files in Windows. Image

Re: WD Elements SE 25FE (WD10SMZW) spike in last ~40GB

June 7th, 2018, 12:59

Modified Logical Zone Table. The first Physical Zone is put last.

Re: WD Elements SE 25FE (WD10SMZW) spike in last ~40GB

June 7th, 2018, 17:26

BGman wrote:Modified Logical Zone Table. The first Physical Zone is put last.


Have any idea why?

Re: WD Elements SE 25FE (WD10SMZW) spike in last ~40GB

June 7th, 2018, 18:15

Oubadah wrote:Have any idea why?

I would check the P-list.

Re: WD Elements SE 25FE (WD10SMZW) spike in last ~40GB

February 2nd, 2019, 11:21

Well,
I Noticed The Same Trend In Rosewoods Too Few Days Back In PC 300l Logical Scan

Re: WD Elements SE 25FE (WD10SMZW) spike in last ~40GB

February 2nd, 2019, 15:50

Oubadah wrote:Can anyone offer an explanation for this result?

This drive uses SSD-like translation
In areas where is no data written at all drive wouldn't try to access media but would return binary zeros instead, thus resulting in increase of transfer speed

Re: WD Elements SE 25FE (WD10SMZW) spike in last ~40GB

February 3rd, 2019, 10:37

Doomer wrote:
Oubadah wrote:Can anyone offer an explanation for this result?

This drive uses SSD-like translation
In areas where is no data written at all drive wouldn't try to access media but would return binary zeros instead, thus resulting in increase of transfer speed


Looks cool !!! Wait untill you mess up the translator and the drive starts returning binary zeros even on phisical sectors with data ! :twisted: :twisted: :twisted:
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