Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Questions about my new harddrive

07 Oct 2011   #1
CommandoBob

Windows 8 Professional x64
 
 
Questions about my new harddrive

I've got a few questions about my new HDD, a Samsung S2 portable 320gb 2.5 usb
  1. It says 480Mbit a second of transfer rate - although when I try to copy something it's like 10MB/sec
  2. Does 2 hard drives increase performance? (Samsung is external and my other one is Internal)

Thanks!


My System SpecsSystem Spec
.
07 Oct 2011   #2
theski232

Windows 7 Home Premium 64 Bit
 
 

The HDD can handle 480Mbit/sec transfer but it also depends on how fast your computer can transfer the files.
My System SpecsSystem Spec
07 Oct 2011   #3
CommandoBob

Windows 8 Professional x64
 
 

Quote   Quote: Originally Posted by theski232 View Post
The HDD can handle 480Mbit/sec transfer but it also depends on how fast your computer can transfer the files.
What do you exactly mean with that?
My System SpecsSystem Spec
.

07 Oct 2011   #4
Corazon

Windows 7 Professional SP1 32-bit
 
 

480MBit/sec is the theoretical top speed of the USB 2.0 protocol. Note it's MBit, not MB (megabytes) - with practical overhead and other factors, the most you can really get out of USB 2.0 is about 40-50MB/sec.

Other factors affecting file copy speed over USB...the two harddisks involved, their degree of fragmentation, rotational speed, random access time, size of the files to be copied, filesystems in use, CPU load during the copy process, whether write caching is enabled or disabled for the internal and USB drives, and so on and so on. Even the quality of the actual USB-to-SATA adapter built into the external drive case affects the speed.

However, if you consistently get no more than 10MB/sec there's a rather serious bottleneck somewhere as you should get at least double that speed.
My System SpecsSystem Spec
07 Oct 2011   #5
CommandoBob

Windows 8 Professional x64
 
 

Quote   Quote: Originally Posted by Corazon View Post
480MBit/sec is the theoretical top speed of the USB 2.0 protocol. Note it's MBit, not MB (megabytes) - with practical overhead and other factors, the most you can really get out of USB 2.0 is about 40-50MB/sec.

Other factors affecting file copy speed over USB...the two harddisks involved, their degree of fragmentation, rotational speed, random access time, size of the files to be copied, filesystems in use, CPU load during the copy process, whether write caching is enabled or disabled for the internal and USB drives, and so on and so on. Even the quality of the actual USB-to-SATA adapter built into the external drive case affects the speed.

However, if you consistently get no more than 10MB/sec there's a rather serious bottleneck somewhere as you should get at least double that speed.
Tried to transfer Program Files (x86) from my old hdd to my new hdd - transfer rate is 6mb/sec? This is probably not good, how do I fix this?
My System SpecsSystem Spec
07 Oct 2011   #6
ignatzatsonic

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit
 
 

The Program Files (x86) folder is kind of an odd folder to transfer. Are you trying to make a back up copy of your installed programs onto the new external hard drive?
My System SpecsSystem Spec
07 Oct 2011   #7
CommandoBob

Windows 8 Professional x64
 
 

Quote   Quote: Originally Posted by ignatzatsonic View Post
The Program Files (x86) folder is kind of an odd folder to transfer. Are you trying to make a back up copy of your installed programs onto the new external hard drive?
No I'm testing the transfer rate of the hard drive.
My System SpecsSystem Spec
07 Oct 2011   #8
pparks1

Windows 7 Ultimate x64
 
 

The best way to test your speed is to try copying a single large file. Do you have anything like a 1GB or 2GB ISO file you could copy. Copy that, time it with a stopwatch and then do the actual math. If you get around 30MB/sec...things are just fine and that's about what you will get with USB 2.0.
My System SpecsSystem Spec
07 Oct 2011   #9
CommandoBob

Windows 8 Professional x64
 
 

Quote   Quote: Originally Posted by pparks1 View Post
The best way to test your speed is to try copying a single large file. Do you have anything like a 1GB or 2GB ISO file you could copy. Copy that, time it with a stopwatch and then do the actual math. If you get around 30MB/sec...things are just fine and that's about what you will get with USB 2.0.
I get 26MB/sec, that's okay? Also to increase boot and loading of games for exmaple do I need to have all files running on the Samsung HDD?
My System SpecsSystem Spec
07 Oct 2011   #10
pparks1

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by CommandoBob View Post
I get 26MB/sec, that's okay? Also to increase boot and loading of games for exmaple do I need to have all files running on the Samsung HDD?
That's about right for a USB 2.0 device. Extenal USB 2.0 drives are great for offsite storage, backups, etc. I would not however advise trying to run applications or games from them. Too slow.
My System SpecsSystem Spec
Reply

 Questions about my new harddrive




Thread Tools




Similar help and support threads
Thread Forum
Harddrive health with harddrive auto-stop in idle
I have pretty old secondary hard drive (11 years) and currently in power settings there is an option to put hard drive in sleep mode if it's been idle for X minutes. Is it a good idea to disable this setting and let the harddrive spin all the time, since as I know, frequently enabling/disabling...
Hardware & Devices
Seagate Harddrive test tool fail but harddrive data seems intact
I have this WD My Passport external portable harddrive which I have used for a couple of years. I was writing something to the drive one day when the USB connection seems to be somewhat loose and the drive disconnected momentarily and reconnected itself but the file I was trying to write ended...
Hardware & Devices
How do I remove windows 7 from harddrive and questions about SSD
Hi all I am having a little bit of trouble doing things right on my computer not too long ago I restored a system image of my backup to my WDC Hard drive and now I have 2 windows 7 64bit operating systems my hard drives both have windows 7 and obviously this is pointless for me on many levels I...
Installation & Setup
SSD Harddrive
This has probably been asked before. I presently have a mother board with Sata Drive connectors. Is there anyway to use an SSD hard drive with this mother board?
Hardware & Devices
What is harddrive/RAM doing???
Very often when I wake up my computer, for a good 5 minutes the harddrive goes completely bozo and the system is extremely unresponsive since (I guess) it is in the process of waking up - in addition, when I look at task manager (even when observing "Show processes from all users") the majority of...
General Discussion


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 21:45.
Twitter Facebook Google+