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My laptop uses a Samsung SSD. A few weeks ago I wanted to transfer a 6.22 GB folder from my internal SSD to an external SSD I own, also from Samsung. I keep the external SSD in a USB 3.0 enclosure, and connected it to the laptop through the USB 3.0 port. The transfer was really fast. Today I wanted to transfer an 8.06 GB folder, but I am getting very slow speeds, about 30MB/s. I can't remember exactly what the high transfer speed was, but it was definitely way over 100MB/s. Is there a particular reason the transfer speed is so slow all of a sudden? I tried rebooting my computer, disconnecting and reconnecting the drive, but that didn't solve it. Any advice or help is greatly appreciated!
Christian
Posted 2015-01-22T22:10:03.410
Reputation: 11
are you sure your laptop has USB 3.0 slots, they are usually blue – Sickest – 2015-01-22T22:12:40.190
Yep, both the cable from the enclosure and the port in my laptop is blue. – Christian – 2015-01-22T22:13:48.133
have you tested that external on other computers to isolate the issue? – Sickest – 2015-01-22T22:15:14.533
How much free space does your SSD has? If less than 25% of free space, your SSD may be fragmented and cause the slowdowns. An SSD should never have less than 25% of free disk space if you want to keep optimal performance. – LPChip – 2015-01-22T22:20:43.680
The laundry list of reasons an SSD might start acting slower than before is gigantic. – killermist – 2015-01-22T22:24:41.573
1Maybe the first folder had 10 files and the second one has 10 million files? – SadBunny – 2015-01-22T22:28:21.293
Agree with Sad, many small files can kill your transfer speed. Have you tried copying the first "baseline" folder again? – Spencer5051 – 2015-01-22T22:37:29.957