Increasing Transfer Speeds from External HDDsUSB 3.0 vs USB 2.0 for external Hard disks drives“This device...
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Increasing Transfer Speeds from External HDDs
USB 3.0 vs USB 2.0 for external Hard disks drives“This device can perform faster.” appears even though I inserted external HDD to USB 3.0 portIs system drive involved when transferring files between external sources?How come my 7200 rpm external HD is slower than my 5400 rpm portable HD?Windows 10 Slow USB 3.0 Disk Transfer (~30.0 MB/s)USB 3.0 port transfer speed on HP laptop not exceeding 40 MBPSExternal HDD Start file transfer fast, then slows down extremelyHDDs on USB-3.1cSlow transfer speeds between one HDD and USB3 external driveExternal's HDD transfer speed permently slows down after transfer of specific files
I've a 500 GB USB 3.0 External HDD which is half used (265 GB is used; total formatted capacity is ~460 GB). When I transfer files from that to my laptop's HDD (5400 RPM) via the USB Type-A 3.0 port, I get a max speed of around 100 MB/s. But the average speed while transferring large folders (~40 GB) is ~20 MB/s. It even reached 100-500 KB/s when transferring the last file I copied into it! [MB/s = Mega BYTE per second]
I think that it has to do with where the data is actually stored in the Hard Drive, so will I have to create partitions in it to mark sectors with different speeds or the HDD is smart enough to store the data on the faster sectors first and on the slower sectors later?
Also, can the CPU bottle-neck the transfer speeds if it's a dual-core or something? I've a quad-core Ryzen 2500u in a thermally cool chassis.
My HDD: Toshiba DTB305 5V⎓1A (5W) USB 3.0 Micro-B to Type-A
On Toshiba's website, they mention max. transfer rate of ~5 Gbit/s (~625 MB/s). Can I ever get that even for 10E-100 picoseconds?
On Amazon (Not sure if this one is DTB305 but it looks the same), I found that it's a 5400 RPM Drive.
I don't want to buy an External SSD as I rarely use my eHDD.
partitioning external-hard-drive usb-3
asked yesterday
Sanjay SinghSanjay Singh
31
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I've a 500 GB USB 3.0 External HDD which is half used (265 GB is used; total formatted capacity is ~460 GB). When I transfer files from that to my laptop's HDD (5400 RPM) via the USB Type-A 3.0 port, I get a max speed of around 100 MB/s. But the average speed while transferring large folders (~40 GB) is ~20 MB/s. It even reached 100-500 KB/s when transferring the last file I copied into it! [MB/s = Mega BYTE per second]
I think that it has to do with where the data is actually stored in the Hard Drive, so will I have to create partitions in it to mark sectors with different speeds or the HDD is smart enough to store the data on the faster sectors first and on the slower sectors later?
Also, can the CPU bottle-neck the transfer speeds if it's a dual-core or something? I've a quad-core Ryzen 2500u in a thermally cool chassis.
My HDD: Toshiba DTB305 5V⎓1A (5W) USB 3.0 Micro-B to Type-A
On Toshiba's website, they mention max. transfer rate of ~5 Gbit/s (~625 MB/s). Can I ever get that even for 10E-100 picoseconds?
On Amazon (Not sure if this one is DTB305 but it looks the same), I found that it's a 5400 RPM Drive.
I don't want to buy an External SSD as I rarely use my eHDD.
partitioning external-hard-drive usb-3
asked yesterday
Sanjay SinghSanjay Singh
31
New contributor
Sanjay Singh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I've a 500 GB USB 3.0 External HDD which is half used (265 GB is used; total formatted capacity is ~460 GB). When I transfer files from that to my laptop's HDD (5400 RPM) via the USB Type-A 3.0 port, I get a max speed of around 100 MB/s. But the average speed while transferring large folders (~40 GB) is ~20 MB/s. It even reached 100-500 KB/s when transferring the last file I copied into it! [MB/s = Mega BYTE per second]
I think that it has to do with where the data is actually stored in the Hard Drive, so will I have to create partitions in it to mark sectors with different speeds or the HDD is smart enough to store the data on the faster sectors first and on the slower sectors later?
Also, can the CPU bottle-neck the transfer speeds if it's a dual-core or something? I've a quad-core Ryzen 2500u in a thermally cool chassis.
My HDD: Toshiba DTB305 5V⎓1A (5W) USB 3.0 Micro-B to Type-A
On Toshiba's website, they mention max. transfer rate of ~5 Gbit/s (~625 MB/s). Can I ever get that even for 10E-100 picoseconds?
On Amazon (Not sure if this one is DTB305 but it looks the same), I found that it's a 5400 RPM Drive.
I don't want to buy an External SSD as I rarely use my eHDD.
partitioning external-hard-drive usb-3
asked yesterday
Sanjay SinghSanjay Singh
31
New contributor
Sanjay Singh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I've a 500 GB USB 3.0 External HDD which is half used (265 GB is used; total formatted capacity is ~460 GB). When I transfer files from that to my laptop's HDD (5400 RPM) via the USB Type-A 3.0 port, I get a max speed of around 100 MB/s. But the average speed while transferring large folders (~40 GB) is ~20 MB/s. It even reached 100-500 KB/s when transferring the last file I copied into it! [MB/s = Mega BYTE per second]
I think that it has to do with where the data is actually stored in the Hard Drive, so will I have to create partitions in it to mark sectors with different speeds or the HDD is smart enough to store the data on the faster sectors first and on the slower sectors later?
Also, can the CPU bottle-neck the transfer speeds if it's a dual-core or something? I've a quad-core Ryzen 2500u in a thermally cool chassis.
My HDD: Toshiba DTB305 5V⎓1A (5W) USB 3.0 Micro-B to Type-A
On Toshiba's website, they mention max. transfer rate of ~5 Gbit/s (~625 MB/s). Can I ever get that even for 10E-100 picoseconds?
On Amazon (Not sure if this one is DTB305 but it looks the same), I found that it's a 5400 RPM Drive.
I don't want to buy an External SSD as I rarely use my eHDD.
partitioning external-hard-drive usb-3
partitioning external-hard-drive usb-3
asked yesterday
Sanjay SinghSanjay Singh
31
New contributor
Sanjay Singh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked yesterday
Sanjay SinghSanjay Singh
31
New contributor
Sanjay Singh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked yesterday
Sanjay SinghSanjay Singh
31
New contributor
Sanjay Singh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked yesterday
Sanjay SinghSanjay Singh
31
asked yesterday
Sanjay SinghSanjay Singh
31
31
New contributor
Sanjay Singh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Sanjay Singh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Sanjay Singh is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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2 Answers
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Your observation is unrelated to transfer speed - it is a product of access latency.
(Nearly) every file write needs two disk seeks (around 15ms each on a 5400RPM disk), and if you transfer many small files these seek times will easily outweigh the time needed to transfer the actual content. If you transfer one big unfragmented file, you will get close to the natural transfer speed of the disk, which should be around 100 MB/s.
This is exactly the reason, why SATA SSDs are so fast subjectively eben on a SATA2 port - while their transfer speeds may just be 2-3 times those of a disk, their access times are thousands of times faster.
Seek speed is an intrinsic property of your disk, so there is nothing you can do about it.
answered yesterday
Eugen RieckEugen Rieck
11k22429
The biggest contributor to seek time is rotational speed - so there are no "good" sectors
– Eugen Rieck
yesterday
add a comment |
CPU will almost never come into play in raw IO. You have two 5400 RPM drives; this is significantly less than optimal. I don't think the USB3.0 will be a limiting factor in this instance. How the data on the drive is oriented is not very relevant, but if the data is fragmented, defragment it.
Other than a possible defrag, you are pretty much stuck with performance without replacing the hard drives (especially the external).
answered yesterday
UnhandledExcepSeanUnhandledExcepSean
1616
add a comment |
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2 Answers
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2 Answers
2
active
oldest
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active
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votes
Your observation is unrelated to transfer speed - it is a product of access latency.
(Nearly) every file write needs two disk seeks (around 15ms each on a 5400RPM disk), and if you transfer many small files these seek times will easily outweigh the time needed to transfer the actual content. If you transfer one big unfragmented file, you will get close to the natural transfer speed of the disk, which should be around 100 MB/s.
This is exactly the reason, why SATA SSDs are so fast subjectively eben on a SATA2 port - while their transfer speeds may just be 2-3 times those of a disk, their access times are thousands of times faster.
Seek speed is an intrinsic property of your disk, so there is nothing you can do about it.
answered yesterday
Eugen RieckEugen Rieck
11k22429
The biggest contributor to seek time is rotational speed - so there are no "good" sectors
– Eugen Rieck
yesterday
add a comment |
Your observation is unrelated to transfer speed - it is a product of access latency.
(Nearly) every file write needs two disk seeks (around 15ms each on a 5400RPM disk), and if you transfer many small files these seek times will easily outweigh the time needed to transfer the actual content. If you transfer one big unfragmented file, you will get close to the natural transfer speed of the disk, which should be around 100 MB/s.
This is exactly the reason, why SATA SSDs are so fast subjectively eben on a SATA2 port - while their transfer speeds may just be 2-3 times those of a disk, their access times are thousands of times faster.
Seek speed is an intrinsic property of your disk, so there is nothing you can do about it.
answered yesterday
Eugen RieckEugen Rieck
11k22429
The biggest contributor to seek time is rotational speed - so there are no "good" sectors
– Eugen Rieck
yesterday
add a comment |
Your observation is unrelated to transfer speed - it is a product of access latency.
(Nearly) every file write needs two disk seeks (around 15ms each on a 5400RPM disk), and if you transfer many small files these seek times will easily outweigh the time needed to transfer the actual content. If you transfer one big unfragmented file, you will get close to the natural transfer speed of the disk, which should be around 100 MB/s.
This is exactly the reason, why SATA SSDs are so fast subjectively eben on a SATA2 port - while their transfer speeds may just be 2-3 times those of a disk, their access times are thousands of times faster.
Seek speed is an intrinsic property of your disk, so there is nothing you can do about it.
answered yesterday
Eugen RieckEugen Rieck
11k22429
Your observation is unrelated to transfer speed - it is a product of access latency.
(Nearly) every file write needs two disk seeks (around 15ms each on a 5400RPM disk), and if you transfer many small files these seek times will easily outweigh the time needed to transfer the actual content. If you transfer one big unfragmented file, you will get close to the natural transfer speed of the disk, which should be around 100 MB/s.
This is exactly the reason, why SATA SSDs are so fast subjectively eben on a SATA2 port - while their transfer speeds may just be 2-3 times those of a disk, their access times are thousands of times faster.
Seek speed is an intrinsic property of your disk, so there is nothing you can do about it.
answered yesterday
Eugen RieckEugen Rieck
11k22429
answered yesterday
Eugen RieckEugen Rieck
11k22429
answered yesterday
Eugen RieckEugen Rieck
11k22429
answered yesterday
Eugen RieckEugen Rieck
11k22429
11k22429
The biggest contributor to seek time is rotational speed - so there are no "good" sectors
– Eugen Rieck
yesterday
add a comment |
The biggest contributor to seek time is rotational speed - so there are no "good" sectors
– Eugen Rieck
yesterday
The biggest contributor to seek time is rotational speed - so there are no "good" sectors
– Eugen Rieck
yesterday
The biggest contributor to seek time is rotational speed - so there are no "good" sectors
– Eugen Rieck
yesterday
add a comment |
CPU will almost never come into play in raw IO. You have two 5400 RPM drives; this is significantly less than optimal. I don't think the USB3.0 will be a limiting factor in this instance. How the data on the drive is oriented is not very relevant, but if the data is fragmented, defragment it.
Other than a possible defrag, you are pretty much stuck with performance without replacing the hard drives (especially the external).
answered yesterday
UnhandledExcepSeanUnhandledExcepSean
1616
add a comment |
CPU will almost never come into play in raw IO. You have two 5400 RPM drives; this is significantly less than optimal. I don't think the USB3.0 will be a limiting factor in this instance. How the data on the drive is oriented is not very relevant, but if the data is fragmented, defragment it.
Other than a possible defrag, you are pretty much stuck with performance without replacing the hard drives (especially the external).
answered yesterday
UnhandledExcepSeanUnhandledExcepSean
1616
add a comment |
CPU will almost never come into play in raw IO. You have two 5400 RPM drives; this is significantly less than optimal. I don't think the USB3.0 will be a limiting factor in this instance. How the data on the drive is oriented is not very relevant, but if the data is fragmented, defragment it.
Other than a possible defrag, you are pretty much stuck with performance without replacing the hard drives (especially the external).
answered yesterday
UnhandledExcepSeanUnhandledExcepSean
1616
CPU will almost never come into play in raw IO. You have two 5400 RPM drives; this is significantly less than optimal. I don't think the USB3.0 will be a limiting factor in this instance. How the data on the drive is oriented is not very relevant, but if the data is fragmented, defragment it.
Other than a possible defrag, you are pretty much stuck with performance without replacing the hard drives (especially the external).
answered yesterday
UnhandledExcepSeanUnhandledExcepSean
1616
answered yesterday
UnhandledExcepSeanUnhandledExcepSean
1616
answered yesterday
UnhandledExcepSeanUnhandledExcepSean
1616
answered yesterday
UnhandledExcepSeanUnhandledExcepSean
1616
1616
add a comment |
add a comment |
Sanjay Singh is a new contributor. Be nice, and check out our Code of Conduct.
Sanjay Singh is a new contributor. Be nice, and check out our Code of Conduct.
Sanjay Singh is a new contributor. Be nice, and check out our Code of Conduct.
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