SATA drive in USB3.0 Enclosure

[meddylad]

398GB left out of 465GB - so its only about 1/6th full - when i formatted the drive i changed the cluster size from 4k to 64k - i was hoping this would have given me alittle more speed as the expense of space, but i knew i wouldnt have used the full 500GB. But this should not effect the drive as when using ATTO, the larger read/writes would show a marked peerformance increase.

I have just put the drive into a standard SATA to USB connector and received exactly same speeds on usb2 as with the usb3 adapter - im sure that that is pretty slow even for usb2 standards, so im at a loss

Many thanks for your help though, nice to know folks are around to help in times of need

 

[pooch]

398GB left out of 465GB - so its only about 1/6th full

bang goes my theory that write speeds were so low cos it was full

I have just put the drive into a standard SATA to USB connector and received exactly same speeds on usb2 as with the usb3 adapter - im sure that that is pretty slow even for usb2 standards, so im at a loss

USB is very slow haha and those speeds are in my experience pretty normal

Many thanks for your help though, nice to know folks are around to help in times of need

No problem I just wish we had a better result

 

[whs]

i ran a 7200RPM Barracuda in my eSata enclosure and a 5400RPM HD that I had recovered from a laptop when I installed an SSD. The results are below.

My conclusion is that it is the speed of the disk that rules the transfer speed. It would be interesting to test an SSD in both enclosures - but unfortunately I have no loose SSD lying around.

 

[pooch]

i ran a 7200RPM Barracuda in my eSata enclosure and a 5400RPM HD that I had recovered from a laptop when I installed an SSD. The results are below.

My conclusion is that it is the speed of the disk that rules the transfer speed. It would be interesting to test an SSD in both enclosures - but unfortunately I have no loose SSD lying around.

No me neither :-( Nice speeds all the same and I agree with your conclusion.
When I copy between disks I get some very high speeds according to windows and I wonder if this is just a windows bug?
Copying 2,98GB using USB 3 from my Samsung RAID to a 2,5 laptop disc that has been rated previously in this thread by ATTO as being a lot slower

 

[whs]

I have just the opposite. When I image to those disks (about 20GB of compressed image), the transfer speeds are a lot slower than the Atto numbers. And it is probably not CPU bound because that is an i7 running at a very low load when imaging.

 

[pooch]

I have just the opposite. When I image to those disks (about 20GB of compressed image), the transfer speeds are a lot slower than the Atto numbers. And it is probably not CPU bound because that is an i7 running at a very low load when imaging.

Strange but then 20GB is a lot larger than the file I was moving and may have something to do with it.

 

[whs]

I think next time I will check whether Write Caching is enabled. Last time I did not check that.

 

[pooch]

I think next time I will check whether Write Caching is enabled. Last time I did not check that.

Its worth doing as it makes a difference best if you have a power supply to your externals

 

[whs]

I have seperate power for the eSata enclosure, but not for the USB3.

 

[pooch]

I have seperate power for the eSata enclosure, but not for the USB3.

Its only in case of a power interruption to avoid data loss I believe that is quite rare and have always enabled these options anyway for the speed benefit

 

[whs]

Nothing I do with the drives in the enclosures is vital and everything can be repeated. Fortunately I have not seen a power failure in years - I bought this battery backup for nothing. LOL. But at least I am prepared like a good soldier - or Gomer Pyle.

 

[pooch]

Nothing I do with the drives in the enclosures is vital and everything can be repeated. Fortunately I have not seen a power failure in years - I bought this battery backup for nothing. LOL. But at least I am prepared like a good soldier - or Gomer Pyle.

lmao

 

[meddylad]

i ran a 7200RPM Barracuda in my eSata enclosure and a 5400RPM HD that I had recovered from a laptop when I installed an SSD. The results are below.

My conclusion is that it is the speed of the disk that rules the transfer speed. It would be interesting to test an SSD in both enclosures - but unfortunately I have no loose SSD lying around.

My drive is a momentus 7200.4 hdd which is 7200rpm but my speeds are so slow - how come a 5400rpm is faster than my 7200rpm in usb3? i have an ssd in my laptop so i might take it out n try it in my usb3 enclosure to see what speeds it gives