[6.8.3] Sub gigabit transfer speeds on 10gb network.

[Juise99]

Initial transfer starts at about 4gb and immediately tanks. I know there's an amount of RAM caching, and HW Buffering that happens in windows and the hardware for a file transfer. However the transfer should balance out at the continuous write speed of the cache drive (Samsung 840 Pro), or continuous read speed of the source (PERC H700 RAID 5) whichever is lower. The hardware should easily do a sustained 2.5gb transfer and as you can see that's not happening.

[JorgeB]

The way it drops looks like a device problem, if you enable turbo write and transfer directly to the array is it the same or better?

[Juise99]

On 1/24/2021 at 3:31 AM, JorgeB said:

The way it drops looks like a device problem, if you enable turbo write and transfer directly to the array is it the same or better?

Turbo write is enabled, similar results when writing directly to the array (just a much lower initial burst). Devices also test fine too. Top chart are the mechanical drives, bottom is the cache SSD.

Edited January 27, 2021 by Juise99

[JorgeB]

Start a transfer to the array with turbo write enable and grab the diagnostics after the transfer slows down.

[Juise99]

12 hours ago, JorgeB said:

Start a transfer to the array with turbo write enable and grab the diagnostics after the transfer slows down.

syslog or something else?

[itimpi]

6 minutes ago, Juise99 said:

syslog or something else?

Diagnostics (Tools -> Diagnostics)