What speeds should I expect from SATA hard-drive transfers?

Baddass · 14 Apr 2021 at 09:25

I have the following two hard drives in the same system, but wanted to sanity check what transfer speeds i should expect when copying and pasting content between the two:

Samsung 250GB 860 EVO SSD 2.5" SATA 6Gbps 64 Layer 3D V-NAND Solid State Drive (MZ-76E250B/EU) -

Western Digital Caviar Green 1TB SATA 6Gb/s 64MB Cache - OEM (WD10EZRX) **SINGLE PLATTER** HDD

When copying a 4Gb file from one to the other i'm getting speeds of about 120 MB/s, is there a way to improve this?

Haze · 14 Apr 2021 at 09:54

Bottle neck will be the slowest hard drive, not sure what you are expecting? Do you need someone to Google what speed the WD hdd transfers at?

Minstadave · 14 Apr 2021 at 09:57

That's about right for a smaller mech HDD. The only way to change it would be to change the mech drive to either a larger more modern mech drive or even better an SSD.

Your bottleneck isn't the bus, it's the mechanical drive.

Baddass · 14 Apr 2021 at 10:02

thanks guys, i just wasn't sure if that was a reasonable transfer rate between those two. appreciate the replies

andy_mk3 · 14 Apr 2021 at 10:03

Yeah 120MB/s is about as good as it gets from a single mechanical drive like that.

EsaT · 14 Apr 2021 at 15:57

Baddass said:
Western Digital Caviar Green 1TB SATA 6Gb/s 64MB Cache - OEM (WD10EZRX) **SINGLE PLATTER** HDD

When copying a 4Gb file from one to the other i'm getting speeds of about 120 MB/s, is there a way to improve this?

Single platter drive's data density should give more like 150 MB/s STR, but that of course drops if drive is more full.
But is that drive single platter one?
Manufacturers stopped giving out that information long time ago and that 120MB/s would fit well to earlier models:
http://usa1gary.blogspot.com/2015/09/western-digital-wd-green-wd10ezrx.html