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Old 03-14-2005, 03:26 PM   #1
buldir
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Registered: Mar 2004
Location: Fairbanks, AK USA
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External hard drive data transfer speed


Here's the scoop:

1) I plug my USB external hard drive (formatted ext3) into the box and I get data transfer rates less than 5 MB/s. The drive is automatically recognized and mounted using hotplug, I assume. DMA is enabled for the internal IDE drive.

2) If I put an entry into my /etc/fstab file that's like:

/dev/sda1 /mnt/usbdrive ext3 noauto,rw,users 0 0

and mount the drive, I get data transfer speeds up to 30 MB/s. But now, with the above line in /etc/fstab, my USB flash pen drive (formatted fat32), camera, etc, does not get mounted properly by hotplug. What is going here? How do I get the best of both worlds? I am running 9.2 Pro. Thanks.
 
Old 04-11-2005, 09:25 AM   #2
t3gah
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Registered: Dec 2004
Distribution: SuSE, RedHat, ubuntu, Debian
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Re: External hard drive data transfer speed

Quote:
Originally posted by buldir
Here's the scoop:

1) I plug my USB external hard drive (formatted ext3) into the box and I get data transfer rates less than 5 MB/s. The drive is automatically recognized and mounted using hotplug, I assume. DMA is enabled for the internal IDE drive.

2) If I put an entry into my /etc/fstab file that's like:
Code:
/dev/sda1 /mnt/usbdrive ext3 noauto,rw,users 0 0
and mount the drive, I get data transfer speeds up to 30 MB/s. But now, with the above line in /etc/fstab, my USB flash pen drive (formatted fat32), camera, etc, does not get mounted properly by hotplug. What is going here? How do I get the best of both worlds? I am running 9.2 Pro. Thanks.
SuSE 9.2 Pro and you have the USB drive as a SCSI device naming convention?

What kernel is this?
Code:
uname -a
What does the entire /etc/fstab say?
 
  


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