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Hi,

I've a small issue with copying files with Samba with my shared drives.
The strange part is that it is not general on all disks.

This how it looks when i copy (under windows) a file from a share on SDB to a share on SDB
https://i.ibb.co/fFvSmyV/sdb-to-sdb.png
The speed varies from +/- 120Mb/s to 0


This how it looks when i copy (under windows) a file from a share on SDC to a share on SDB
https://i.ibb.co/6sww3Zs/sdc-to-sdb.png
Pretty constant

The same constant speed is copying a file from C:\ to a share on SDB or SDC

What could here be the problem.
My logs are now showing anything strange
Saturday, January 30 2021, 07:04 PM
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  • Accepted Answer

    Monday, February 01 2021, 10:31 AM - #Permalink
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    Hi Nick.
    Thanks for your reply.
    I've doen an additional test on my 2nd server with the same configuration and had the same result.
    The disk is a WD 4TB NasWare 3.0 (5400 rpm) and is not the quickest HDD, so propably it can not keep up with read/write
    I would expect the network speed would be the bottle neck.
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  • Accepted Answer

    Monday, February 01 2021, 10:06 AM - #Permalink
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    If you are copying to and from the same drive, the drive is working hard as it is having to do both reads and writes at the same time. Unless it is an SSD, I would not expect it to be able to keep up with your network speed. From the looks of things it is probably cycling between reading and writing.
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