On Mar 18, 2011, at 10:08 AM, Justin Piszcz wrote: > Hi, > > I can write to just about the entire USB stick, with no errors: > > atom:~# df -h > Filesystem Size Used Avail Use% Mounted on > /dev/sda2 5.8G 1.5G 4.3G 26% / > tmpfs 2.0G 0 2.0G 0% /lib/init/rw > udev 10M 140K 9.9M 2% /dev > tmpfs 2.0G 0 2.0G 0% /dev/shm > atom:~# cd / > atom:/# ls > bin cdrom etc lib media nfs proc sbin srv tmp var > boot dev home lib64 mnt opt root selinux sys usr > atom:/# dd if=/dev/zero of=bigfile bs=1M count=4000 > 4000+0 records in > 4000+0 records out > 4194304000 bytes (4.2 GB) copied, 135.536 s, 30.9 MB/s > atom:/# df -h > Filesystem Size Used Avail Use% Mounted on > /dev/sda2 5.8G 5.4G 350M 95% / > tmpfs 2.0G 0 2.0G 0% /lib/init/rw > udev 10M 140K 9.9M 2% /dev > tmpfs 2.0G 0 2.0G 0% /dev/shm > atom:/# rm bigfile > > However, after some amount of time, the errors occur below, is this USB > stick failing? Since it has no SMART, is there any other way to verify > the 'health' of a USB stick? What prompted you to go with XFS over, say, ext2? The journal will generally cause quite a bit more writes onto your USB device. I use ext2 on my CF card in my NAS for that reason (the spinning media is on XFS of course). I know that's not an answer to your problem but thought I would add it as a suggestion :) Tim -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html