Slow transfer between SSD's

[jlennon999]

M.2 EVo 950 Samsung as my C drive. D Drive is SSD Samsung 850. When I transfer between the two the speed is only 100 MB/s? why?

 

[bailojustin]

1st, do you have your correct sata controller and chipset installed in device manager?

Have you tested both of the drives? if they are connected VIA m.2 and sata you should be getting MUCH faster.
Whats your disk usage while transferring between them, and right before.
can you post a picture of your disk activity.

Also I recommend trying a http://crystalmark.info/download/index-e.html Disk Checker, this will analyze your drives and tell you if something is wrong.

 

[atljsf]

m.2 should give you write speeds over 600mbs when reading that information from the ssd that can offer read speeds of around 600mbs

sometimes when the transfer is thousands of small file, the process can be very slow, what are you copying, big files, many gbs in size, thousands of small files or a mix?

about your hardware specs, cpu, mainboard and gpu

a article i just read got me thinking about pci lanes limitation when gpu x16 pci-e, m.2 and sata ssd are connected at the same time

 

[jlennon999]

I'll try to post a photo and I'll run the Disk Checker. I would have no idea if i have the correct sata controller and chipset installed.

Disk Mark Speeds for M.2 Samsung EVO 950:

Disk Mark Speeds for SSD Samsung 850 Pro:

 

[jlennon999]

m.2 should give you write speeds over 600mbs when reading that information from the ssd that can offer read speeds of around 600mbs

sometimes when the transfer is thousands of small file, the process can be very slow, what are you copying, big files, many gbs in size, thousands of small files or a mix?

about your hardware specs, cpu, mainboard and gpu

a article i just read got me thinking about pci lanes limitation when gpu x16 pci-e, m.2 and sata ssd are connected at the same time

The files are RAW image files. So not so small but many. Here's my hardware:

Asus Deluxe II x99 motherboard
32 GB ram
i7-6850K CPU
Nvidia GeForce GTX 970

Thanks for the help.

 

[bailojustin]

Open device manager, do you see any exclamation marks or question marks?

 

[jlennon999]

Open device manager, do you see any exclamation marks or question marks?

I see one for Other Devices: Here's a photo:

 

[jlennon999]

1st, do you have your correct sata controller and chipset installed in device manager?

Have you tested both of the drives? if they are connected VIA m.2 and sata you should be getting MUCH faster.
Whats your disk usage while transferring between them, and right before.
can you post a picture of your disk activity.

Also I recommend trying a http://crystalmark.info/download/index-e.html Disk Checker, this will analyze your drives and tell you if something is wrong.

Please, check out the speeds and check disk images in the earlier post. Everything seems to be fine... right? So why am I getting these slow speeds

 

[bailojustin]

1st, do you have your correct sata controller and chipset installed in device manager?

Have you tested both of the drives? if they are connected VIA m.2 and sata you should be getting MUCH faster.
Whats your disk usage while transferring between them, and right before.
can you post a picture of your disk activity.

Also I recommend trying a http://crystalmark.info/download/index-e.html Disk Checker, this will analyze your drives and tell you if something is wrong.

Please, check out the speeds and check disk images in the earlier post. Everything seems to be fine... right? So why am I getting these slow speeds

You should be fine, everything looks good, I see no issues. I beleive it may have been you were running something on said drive when transfer was going.

I would test it again, if you have a movie or something, reboot your PC, once rebooted, move a large 2gb+ file from C to D

 

[jlennon999]

I rebooted. I'm now getting speeds of 450 MB/s transfer. Sorry for the alarm.

 

[atljsf]

perhaps a windows update or something similar

as you see, the slowest drive determines the maximum speed, here is the ssd