Hi, What happend if for example 1 disk of a mirror raid gets broken, has bad sectors? Will there be an appropriate error message and will the metadata be changed? I am running dmraid with a hpt37x mirror (raid 1) on 2.6.10 debian amd64. When I copy some large files onto the raid, my computer "freezes" and I dont get any message in syslog or dmesg. I load dmraid in verbose mode and also have enabled debug symbols but dont see any error message. Whats wrong? Is this a problem of the device mapper? Any Idea? thanks Roland