WD my passport ultra 2tb - LOW SPEED

[ressac]

hello i've bought today subject, and tried on mac os 10.9.5
speed write or read is REALLY LOW, 30mb/s
yes i did install all stuff, like drivers, wd software etc...
smart test look good, i formatted drive few times already, but speed is so poor ((
any solution? or tips?
thx

p.s. MacBook Pro (13-inch Late 2011)

 

[Weaselboy]

Your 2011 model only has USB2, so those speeds look about right.

 

[ressac]

you're right

but i've tried this hdd on windows 7 machine with core 2 duo and mobo asus p5k-e which is 6-7 year old

and there 10mb/s plus on read/write --> 42 mb/s read 35 mb/s write

 

[Boyd01]

I have several of the USB2 passport drives. They clock around 35MB/s write on my 2013 MBA (with USB3 interface). Your speeds seem a little slow, but if the drive is fragmented that could explain it. What drivers did you install? I don't think any should be necessary. Is your drive formatted for MacOSX?

Now it's interesting, these same drives are much faster on my Windows machine (i5, Win 7 Pro), maybe 60 MB/s. I wonder if this is due to the windows FAT32 formatting, since it doesn't do journaling like MacOSX?

I also have a passport ultra, like yours. With USB3 on my MBA, it clocks over 100 MB/s.

 

[ImBuz]

I only get about 38 on mine

 

[ressac]

I have several of the USB2 passport drives. They clock around 35MB/s write on my 2013 MBA (with USB3 interface). Your speeds seem a little slow, but if the drive is fragmented that could explain it. What drivers did you install? I don't think any should be necessary. Is your drive formatted for MacOSX?

Now it's interesting, these same drives are much faster on my Windows machine (i5, Win 7 Pro), maybe 60 MB/s. I wonder if this is due to the windows FAT32 formatting, since it doesn't do journaling like MacOSX?

I also have a passport ultra, like yours. With USB3 on my MBA, it clocks over 100 MB/s.

i did all test after format hdd, so it was completely empty.

yes drivers give a some boost to speed, for example on win7 it was pretty same as on mac, but after install wd ses driver it gives reading 42mb/s, writing 32mb/s
same goes on mac driver wd +turbo driver but in this case boost was just a tiny, about 3-5 mb/s in writing and reading maybe 3mb/s more

i've done different variation of tests with different file systems on hdd, and in my case speed remains same:
win7 - fat32 and ntfs - speed was same
mac os - fat32 - hfs+ - speed was same

as a conclusion, i think it all about mbp mobo controller, but i cant be sure about this 100% because i didn't test hdd from windows on mbp.

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I only get about 38 on mine

which model of mbp? and external hdd?

 

[ressac]

just tested hdd speed again , and speed changed to better

i don't know why it's faster than yesterday, all i did it's to check for bad sectors using WD Drive Utilities.