Question 2TB ADATA External HDD has slow write speeds but fast read speeds ?

[kuraimangetsu]

Hi
i have a 2TB ADATA External HDD
it gives slow write speeds [8-12MB/s] but high read speeds [85-110MB/s]
tried different cables, different computers and ports. but the same results.

I tested small files, and big files. different type of files
I checked the disk with different softwares. reformated to exfat and ntfs, same deal!

i only get this problem on Adata external drives. and it's not the first time for me.

 

[Misgar]

tested small files, and big files. different type of files

What is your definition of small and big files?

You should see the best Sequential Write (and Read) speeds with files of several hundred Megabytes or larger.

I get good speeds for external storage when transferring 1GB to 12GB GoPro videos.

i only get this problem on adata external drives. and it's not the first time for me

Dare I say it? Don't buy an Adata external drive next time.

Of course, the main problem might be your 2TB drive uses SMR (Shingle Magnetic Recording). This technology is notoriously bad when writing files to a "well used" drive which has had many file deletions in the past. USB translation just adds to the delays. Next time buy a CMR/PMR drive and not an SMR.

https://www.reddit.com/r/DataHoarder/comments/i2zmum/i_knew_smr_had_slow_write_speeds_but_1mbsecond/

 

[Bob.B]

Hi
i have a 2TB ADATA External HDD
it gives slow write speeds [8-12MB/s] but high read speeds [85-110MB/s]
tried different cables, different computers and ports. but the same results.

I tested small files, and big files. different type of files
I checked the disk with different softwares. reformated to exfat and ntfs, same deal!

i only get this problem on Adata external drives. and it's not the first time for me.

Defrag?.......perhaps give that a test drive.

 

[Grobe]

It may be the drive have little free space left. That will force the OS to use more resources to look for available space to put the files, and it also cause fragmentation of recently saved files, particularly large ones.