I have tried xfs as well and it was ok. However, later it hangs several times while transferring files and the only way to stop the transfer was rebooting. Original Message ----- From: Mikael Abrahamsson <swmike@xxxxxxxxx> To: sk <sdk0084@xxxxxxxxx> Cc: "linux-raid@xxxxxxxxxxxxxxx" <linux-raid@xxxxxxxxxxxxxxx> Sent: Monday, February 18, 2013 12:46 PM Subject: Re: problems formatting raid5 On Mon, 18 Feb 2013, sk wrote: > i wait about 10 hours > and start after the resync process completed. it was not mount so i don't think there were any activity. Well, then output from iostat -x 5 during the creation would be of interest. Also, try other filesystems such as xfs and see if that behaves differently. -- Mikael Abrahamsson email: swmike@xxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html