> afaikt, the deathstar incident was actually bad firmware > (didn't correctly flush data when hard powered off, resulting in > blocks on disk with bogus ECC, which had to be considered bad from > then on, even if the media was perfect.) I do not think the deathstar incident was due to a firmware problem as you describe at all. I had a lot of these drives fail, and I read as much as I could find on the subject. The problem was most likely caused by the fact that these drives used IBM's new glass substrate technology. This substrate had heat expansion issues which caused the heads to misalign on tracks and eventually cross write over tracks, corrupting data. The classic "click of death" was the sound of the drive searching for a track repetitively. In some cases a format would allow the drive to be used again, in many cases it would not. It is my belief that formatting was inneffective at fixing the drive because the cross writing probably hit some of the low level data, which the drive cannot repair on a format. - 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
