Hi Maarten, > this constant switching by itself. Now my FS is XFS, maybe > that filesystem has this behaviour? > Anyone having a raid-5 with XFS on top can confirm > this ? I can definitely confirm this. XFS does not use constant request sizes for accessing the block device. That's why it used to be impossible to combine XFS and drbd - drbd couldn't cope with the constantly changing block sizes. Bye, Martin - 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