On Fri, Feb 13, 2009 at 9:47 PM, Richard Elling
<richard.ell...@gmail.com> wrote:
> It has been my experience that USB sticks use FAT, which is an ancient
> file system which contains few of the features you expect from modern
> file systems. As such, it really doesn't do any write caching. Hence, it
> seems to work ok for casual users. I note that neither NTFS, ZFS, reiserfs,
> nor many of the other, high performance file systems are used by default
> for USB devices. Could it be that anyone not using FAT for USB devices
> is straining against architectural limits?

  There are no archtiectural limits. USB sticks can be used with whatever
you throw at them. On sticks I use to interchange data with Windows machines
I have NTFS, on others differente filesystems: ZFS, ext4, btrfs, often encrypted
on block level.
   USB sticks are generally very simple -- no discard commands and
other fancy stuff,
but overall they are block devices just like discs, arrays, SSDs...

-- 
Tomasz Torcz
xmpp: zdzich...@chrome.pl
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