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| Thread ID: 78706 | 2007-04-25 10:17:00 | Ext USB HDD | johnd (85) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 544279 | 2007-04-25 10:17:00 | Recently I have retired all desktops at our place. I decided to utilize a spare 60G IDE drive by purchasing a Welland USB case (very impressed with the sturdiness of this device). I am using this for backup etc. I works fine on my wife's Toshiba laptop running XP Home. My laptop is an IBM ThinkPad T22 running Fedora Core 5. When I set a large number of files copying it just stops after about 15 seconds with no errors. I have never come across this situation before. It is acting like there is an incompatibility between USB2 and USB1. Any thoughts? |
johnd (85) | ||
| 544280 | 2007-04-25 11:54:00 | Try one file @ a time or use firewire if it has those ports on the back as well, mine has both USB2 & firewire. |
EX-WESTY (221) | ||
| 544281 | 2007-04-25 20:55:00 | tail /var/log/messages Have you tried one large 500MB+ file? Is it just a lot of 'average' sized files that its failing on? Same files each time or a different 'set'? |
Chilling_Silence (9) | ||
| 544282 | 2007-04-25 21:32:00 | Does your USB drive have it's own power supply or is it provided by the USB ports? Your laptop may not be giving the drive enough power to work properly. I know my Dell laptop at work has this problem and the copy will stop part way through. Once i connect the extra power connector on the USB cable, it works ok. |
autechre (266) | ||
| 544283 | 2007-04-27 08:12:00 | Thanks for your ideas: 1. Copying files one at a time is not a serious possibility with 1000's fo files! 2. The logs did not reveal anything obvious about the process. 3. The drive does have it's own external power supply. 4. It is not just one set of files that the copy is failing on. JSD |
johnd (85) | ||
| 544284 | 2007-04-27 09:10:00 | Is the USB on this laptop 1.1 or 2? If its 1.1 and the hdd is 2, it'll still be running at 1.1 speed. And most probably too slow to keep up. |
Speedy Gonzales (78) | ||
| 544285 | 2007-04-27 09:48:00 | Is the USB on this laptop 1 . 1 or 2? If its 1 . 1 and the hdd is 2, it'll still be running at 1 . 1 speed . And most probably too slow to keep up . That is what it looks like - but USB 1 . 1 and 2 are supposed to be compatible . |
johnd (85) | ||
| 544286 | 2007-04-27 09:52:00 | Yup they'll be compatible, but if the Welland is USB 2 and the USB port is 1.1, it'll still run at 1.1 speed not USB 2, which is faster. | Speedy Gonzales (78) | ||
| 544287 | 2007-04-27 10:20:00 | Yup they'll be compatible, but if the Welland is USB 2 and the USB port is 1.1, it'll still run at 1.1 speed not USB 2, which is faster. Very true - but it seems to go at lighning speed to start with then just bogs down then stops! |
johnd (85) | ||
| 544288 | 2007-04-29 06:36:00 | I had a similar problem using a top-of-range external HD connected to a USB2 card installed in a older computer. After several seconds of copying it was stopping then resetting itself. Another HD of a different brand worked OK. It seems that not all USB circuitry is made identical and there are some incompatibilies at high stream. In your case it may not be the number of the files but their size. Try sending them in batches, or individual folders, or borrow a HD from a friend. I found IOMEGA ExHDs very reliable. | Supertall (12181) | ||
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