HGST 4TB transfer rate erratic

Soldato
Joined
8 Nov 2002
Posts
4,365
Location
Kent
https://imgur.com/a/6pHvVfZ
Sequential tranfer rate currently(1):
1sr2lKT.png

Sequential transfer rate in 2015 when I got it(2):
6iOflHk.png

Power on hours = 4 years(3)
ac2t1ED.jpg
11 hours spin up time apparently (there are no 198 errors which show under the formatted coloumn, I have a WD10EACS with some bad smart data there)(4)
y7GdSxd.jpg
1.37TB master file table(5)
szXBbfS.jpg
Here is 0S04005 holding the same data @ 875MB master file table(6):
FYCCS4k.jpg
Previous format was 28 08 2017(7)
dujYwQT.jpg
Sequential transfer rate on 24 08 2017 was 123MB/s before 28 08 2017 format. After (writing to formatted 0S03665) was 126MB/s. I did not test it with HDtune sequential performance test after formatting.(8)
5ZUSmZt.jpg

I'd like to test it on HDtune after I format 0S03665 after I backup my data to a new HGST 14TB which I am shucking from a WD Elements external. It ws £191 compared to £396 for the bare drive (also found it for £320).

I'm hoping to get ultrastar-dc-hc520_HUH721212ALE600 - 0f30144.

I've been using defraggler to check MFT fragmentation, and after dislodging something made 2 fragments instead of 4. I heard paragon defragmentation tool can defragment and trunicate it to a smaller size (since by default the MFT only makes itself larger and you can see from (6) it could be 875MB at that time). The only other way I know to reduce the MFT size for the same data is a format and copy it back.

Here's crystal diskmark which u may be more familar with:
2015(9):
DqRaXjw.jpg
2017(10):
mdTrr1k.jpg
2020(11):
ikpU82l.jpg
Although the program is configured a little differently (read the side bar to compare results).

The UsnJrnl tracks changes made to the disk, it was 9GB before I weeded it out.
vKzp35J.jpg

Disclaimer: No pRon was hurt in the making of this thread.
 
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