copy large file to USB drive hangs

[Guest flahmeshess]

Re: copy large file to USB drive hangs

 

The HDD is a SATA drive enclosed in a casing with a USB connection to

the PC. The Connection is a Y connector which is able to draw power

from 2 USB output.

 

On Mar 31, 12:59 am, Frank Booth Snr <fb...@yahoo.co.uk> wrote:

> flahmeshess wrote:

> > 5.5V, 800mA

>

> > On Mar 30, 2:20 am, Frank Booth Snr <fb...@yahoo.co.uk> wrote:

>

> >>I also should ask as you say the Samsung is self-powered, what is its

> >>power requirement? See spec or manual.

>

> I've looked up your Samsung model and I see it's a SATA drive, not a USB

> drive. So I'm confused. I can only assume that you are using a caddy

> with USB connectors to use it as external drive. Please confirm.

>

> Secondly all motherboards have a USB hub 500mA output current. I haven't

> checked the spec yet for your mobo, but I would assume it's the same as

> this is standardised. If that's the case I suggest there is not enough

> current alone from the USB port on your PC to power your Samsung. That

> is why some USB external drives are self-powered rather than rely alone

> on the current from the PC hub.

[Guest Sid Elbow]

Re: copy large file to USB drive hangs

 

flahmeshess wrote:

> The HDD is a SATA drive enclosed in a casing with a USB connection to

> the PC. The Connection is a Y connector which is able to draw power

> from 2 USB output.

 

I've been following this thread with interest although having nothing

much to add. However, a couple of peripheral observations:

 

- I've run a number of IDE-based USB drives. The only ones I've run

self-powered (from the USB connection) have been those containing small,

low-power laptop drives. All those containing full-size drives came with

an external power supply and recommended against using the USB bus for

power. I haven't experienced this problem with any of these.

 

- I recently came into possession of a (full-size) 250 GB SATA HD. Since

all my systems are IDE I bought a USB box to use this drive (again,

externally powered). It was singularly unsuccessful ... I was never even

able to completely format the drive no matter how I partitioned it.

Given my good experience of numerous IDE-USB setups, I formed a bad

opinion of SATA-USB (perhaps unfairly given the sample size - one).

[Guest Frank Booth Snr]

Re: copy large file to USB drive hangs

 

flahmeshess wrote:

> The HDD is a SATA drive enclosed in a casing with a USB connection to

> the PC. The Connection is a Y connector which is able to draw power

> from 2 USB output.

>

I've not personally used this type of arrangement with USB drives, but

it sounds like it's not able to draw enough power from the USB hubs,

which is why it suddenly stops during transfer. I think there lies your

problem. Just to be quite certain the drive works fine with your PC,

remove it from the caddy, open up your PC and connect it to the SATA

controller. Then try transferring your big files over to it. That should

work fine.

 

The only way I'd use an external USB HDD is to buy one built for the

purpose with external power supply, not an IDE or SATA enclosed in a

caddy, that uses a USB hub for power although as someone has said it's

the SATAs that tend to be more unreliable when used in this way.

[Guest flahmeshess]

Re: copy large file to USB drive hangs

 

For this problem, I also encountered it with a 3.5 inch USB HDD which

is powered by the main. So I think it's a problem with either my OS

or the USB HW. But not relation to power supply nor SATA.

 

On Apr 1, 12:03 am, Sid Elbow <h...@there.com> wrote:

> flahmeshess wrote:

> > The HDD is a SATA drive enclosed in a casing with a USB connection to

> > the PC.  The Connection is a Y connector which is able to draw power

> > from 2 USB output.

>

> I've been following this thread with interest although having nothing

> much to add. However, a couple of peripheral observations:

>

> - I've run a number of IDE-based USB drives. The only ones I've run

> self-powered (from the USB connection) have been those containing small,

> low-power laptop drives. All those containing full-size drives came with

> an external power supply and recommended against using the USB bus for

> power. I haven't experienced this problem with any of these.

>

> - I recently came into possession of a (full-size) 250 GB SATA HD. Since

> all my systems are IDE I bought a USB box to use this drive (again,

> externally powered). It was singularly unsuccessful ... I was never even

> able to completely format the drive no matter how I partitioned it.

> Given my good experience of numerous IDE-USB setups, I formed a bad

> opinion of SATA-USB (perhaps unfairly given the sample size - one).

[Guest flahmeshess]

Re: copy large file to USB drive hangs

 

Probably not due to power supply. Happens to my other 3.5 inch IDE

HDD power by main. I think it's the USB not able to handle the

throughput. If I find ways and means to slow it down, eg lower the

priority of the copy command when run in a cmd shell and at the same

time set it's affinity to 1 CPU instead of 2, then it takes longer for

this problem to happen and sometimes not happen.

 

I also once did a copy at the same time I do an ActiveSync, it

happened in just a few minutes.

 

So now, I'm trying to get a copy program (C or Java) that I can

control the buffer size and sleep in between. Then at least I can

copy overnight without hanging. But I loose the ability to check for

duplicate files, recurse through directories (trying to use the global

utility to solve this), etc.

 

On Apr 1, 2:35 am, Frank Booth Snr <fb...@yahoo.co.uk> wrote:

> flahmeshess wrote:

> > The HDD is a SATA drive enclosed in a casing with a USB connection to

> > the PC.  The Connection is a Y connector which is able to draw power

> > from 2 USB output.

>

> I've not personally used this type of arrangement with USB drives, but

> it sounds like it's not able to draw enough power from the USB hubs,

> which is why it suddenly stops during transfer. I think there lies your

> problem. Just to be quite certain the drive works fine with your PC,

> remove it from the caddy, open up your PC and connect it to the SATA

> controller. Then try transferring your big files over to it. That should

> work fine.

>

> The only way I'd use an external USB HDD is to buy one built for the

> purpose with external power supply, not an IDE or SATA enclosed in a

> caddy, that uses a USB hub for power although as someone has said it's

> the SATAs that tend to be more unreliable when used in this way.

[Guest Frank Booth Snr]

Re: copy large file to USB drive hangs

 

flahmeshess wrote:

> Probably not due to power supply. Happens to my other 3.5 inch IDE

> HDD power by main. I think it's the USB not able to handle the

> throughput. If I find ways and means to slow it down, eg lower the

> priority of the copy command when run in a cmd shell and at the same

> time set it's affinity to 1 CPU instead of 2, then it takes longer for

> this problem to happen and sometimes not happen.

>

> I also once did a copy at the same time I do an ActiveSync, it

> happened in just a few minutes.

>

> So now, I'm trying to get a copy program (C or Java) that I can

> control the buffer size and sleep in between. Then at least I can

> copy overnight without hanging. But I loose the ability to check for

> duplicate files, recurse through directories (trying to use the global

> utility to solve this), etc.

>

> On Apr 1, 2:35 am, Frank Booth Snr <fb...@yahoo.co.uk> wrote:

>

>>flahmeshess wrote:

>>

>>>The HDD is a SATA drive enclosed in a casing with a USB connection to

>>>the PC. The Connection is a Y connector which is able to draw power

>>>from 2 USB output.

>>

>>I've not personally used this type of arrangement with USB drives, but

>>it sounds like it's not able to draw enough power from the USB hubs,

>>which is why it suddenly stops during transfer. I think there lies your

>>problem. Just to be quite certain the drive works fine with your PC,

>>remove it from the caddy, open up your PC and connect it to the SATA

>>controller. Then try transferring your big files over to it. That should

>>work fine.

>>

>>The only way I'd use an external USB HDD is to buy one built for the

>>purpose with external power supply, not an IDE or SATA enclosed in a

>>caddy, that uses a USB hub for power although as someone has said it's

>>the SATAs that tend to be more unreliable when used in this way.

>

I'd be interested to know if you got hold of a dedicated USB external

drive (ie no caddy) and tried to copy, whether you would get the same

problem. Have you tried using say a 2 GB flash drive and tried copying a

large file over and see whether that works ok? Anyway the fact that your

drive works on another PC points the finger at your USB output, and one

wonders whether your PSU is sufficiently adequate to cope with the

demands made by your system.

[Guest flahmeshess]

Re: copy large file to USB drive hangs

 

I've tried it on a MiniSD with adapter. Same problem.

 

On Apr 2, 8:18 am, Frank Booth Snr <fb...@yahoo.co.uk> wrote:

> flahmeshess wrote:

> > Probably not due to power supply. Happens to my other 3.5 inch IDE

> > HDD power by main. I think it's the USB not able to handle the

> > throughput. If I find ways and means to slow it down, eg lower the

> > priority of the copy command when run in a cmd shell and at the same

> > time set it's affinity to 1 CPU instead of 2, then it takes longer for

> > this problem to happen and sometimes not happen.

>

> > I also once did a copy at the same time I do an ActiveSync, it

> > happened in just a few minutes.

>

> > So now, I'm trying to get a copy program (C or Java) that I can

> > control the buffer size and sleep in between. Then at least I can

> > copy overnight without hanging. But I loose the ability to check for

> > duplicate files, recurse through directories (trying to use the global

> > utility to solve this), etc.

>

> > On Apr 1, 2:35 am, Frank Booth Snr <fb...@yahoo.co.uk> wrote:

>

> >>flahmeshess wrote:

>

> >>>The HDD is a SATA drive enclosed in a casing with a USB connection to

> >>>the PC. The Connection is a Y connector which is able to draw power

> >>>from 2 USB output.

>

> >>I've not personally used this type of arrangement with USB drives, but

> >>it sounds like it's not able to draw enough power from the USB hubs,

> >>which is why it suddenly stops during transfer. I think there lies your

> >>problem. Just to be quite certain the drive works fine with your PC,

> >>remove it from the caddy, open up your PC and connect it to the SATA

> >>controller. Then try transferring your big files over to it. That should

> >>work fine.

>

> >>The only way I'd use an external USB HDD is to buy one built for the

> >>purpose with external power supply, not an IDE or SATA enclosed in a

> >>caddy, that uses a USB hub for power although as someone has said it's

> >>the SATAs that tend to be more unreliable when used in this way.

>

> I'd be interested to know if you got hold of a dedicated USB external

> drive (ie no caddy) and tried to copy, whether you would get the same

> problem. Have you tried using say a 2 GB flash drive and tried copying a

> large file over and see whether that works ok? Anyway the fact that your

> drive works on another PC points the finger at your USB output, and one

> wonders whether your PSU is sufficiently adequate to cope with the

> demands made by your system.

[Guest Jim Harris]

Re: copy large file to USB drive hangs

 

Sid Elbow wrote:

> flahmeshess wrote:

>> The HDD is a SATA drive enclosed in a casing with a USB connection to

>> the PC. The Connection is a Y connector which is able to draw power

>> from 2 USB output.

>

> I've been following this thread with interest although having nothing

> much to add. However, a couple of peripheral observations:

>

> - I've run a number of IDE-based USB drives. The only ones I've run

> self-powered (from the USB connection) have been those containing small,

> low-power laptop drives. All those containing full-size drives came with

> an external power supply and recommended against using the USB bus for

> power. I haven't experienced this problem with any of these.

>

> - I recently came into possession of a (full-size) 250 GB SATA HD. Since

> all my systems are IDE I bought a USB box to use this drive (again,

> externally powered). It was singularly unsuccessful ... I was never even

> able to completely format the drive no matter how I partitioned it.

> Given my good experience of numerous IDE-USB setups, I formed a bad

> opinion of SATA-USB (perhaps unfairly given the sample size - one).

Just a comment. I'm running 4 external HD boxes connecting via USB,

including one that has 2 500 GB SATA drives with no formatting or other

problems. Could there be a problem with the external drive case? (I'm

even using the dual 500 GB SATA to USB on a Core 2 duo i-Mac with no

problems, except with getting the i-Mac to recognize the external drives

without having to cycle the power to the external case)

wajh

[Guest flahmeshess]

Re: copy large file to USB drive hangs

 

Hi ! Try to explore this again.

 

Does anyone know where I can get a copy file program that copies by

buffer rather than using the Windows function call ? Thanks.

 

On Mar 17, 8:55 am, flahmeshess <dingdongdingd...@yahoo.com> wrote:

> ok. I didn't get any ? or !. Thanks.

>

> David H. Lipman wrote:

> > From: "flahmeshess" <dingdongdingd...@yahoo.com>

>

> > | I downloaded the chipset software and installed it. Then I went to

> > | the device manager and changed all the USB drivers to Intel.

> > | Rebooted. Stillhang. I don't know if I've done the driver update

> > | correctly.

> > |

>

> > If it was done corerectly then there would be no yellow "!" or "?" [ exclamation or

> > question ] marks in Device Manager.

>

> > If the copy process is still problematic after that, then it isn't a driver issue.

>

> > --

> > Dave

> >http://www.claymania.com/removal-trojan-adware.html

> > Multi-AV -http://www.pctipp.ch/downloads/dl/35905.asp