What filesystem for large thumbdrive

[Dan Ritter]

On Fri, Aug 27, 2010 at 12:23:15AM -0400, David Kramer wrote:
> On 08/22/2010 07:33 AM, Matthew Gillen wrote:
> > On 8/22/2010 2:47 AM, David Kramer wrote:
> >> I would like to use a thumbdrive for offsite backup so I picked up at
> >> 16G thumbdrive (the backup file for my server is about 12G).  In other
> >> words, my use case is a very few but very large files.
> >>
> >> I formatted it with ext3 with 2K block size (so I can put larger files
> >> on it), and am finding it VERY slow.  I'm trying to copy the backup file
> >> to it, and 45 minutes later only 1.5G of the file was copied so far.

...

> I reformatted the thumb drive with ext2.  I started copying my backup
> file onto it at about 10:00pm, and at 12:20 it had copied only 7GB of
> the file in the two hours.  Maybe this thumb drive really is that slow.
>  I would think the 2K block size would make it even faster.
> 
> 
> Maybe I need to give up on this idea, or assume I'll have to copy the
> file on overnight or something.

The top speed I've ever seen over USB2 is 34 MB/s, to an
external hard disk.

The top speed I've ever seen writing to a thumb drive is about
12 MB/s.

It looks like you're getting roughly 1 MB/s, which is either a
defective thumb drive... or a USB 1.0 interface. I would check
for that.

-dsr-

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