Hi, since last weekend my machine (dual PIII-450) is attached to a software raid 5 (three scsi-disks - several partitions on each - three raid arrays). After a few hours the system freezes. I found foolowing ebtries in the logs: Apr 8 20:56:01 kopernikus kernel: (scsi0:A:2:0): Unexpected busfree in Data-out phase Apr 8 20:56:01 kopernikus kernel: SEQADDR == 0x1a6 Apr 8 20:56:01 kopernikus kernel: Device 08:25 not ready. Apr 8 20:56:01 kopernikus kernel: I/O error: dev 08:25, sector 128 Apr 8 20:56:01 kopernikus kernel: Device 08:25 not ready. Is the disk broken? And - WHICH disk is it (I assume it's the disk with ID2, but is there a map, which tells me the meaning of Device 08:25?)? One disk goes offline after some hours - but I'm able to reattach it and rebuild the data on it. I found a jumper on the disk which says enable auto spin - what does it mean? Sorry, when I'm probably a bit out of topic with this SCSI problems... I also got some messages like: Apr 8 09:18:25 kopernikus kernel: (scsi0:A:2:0): Locking max tag count at 64 Are these serios? Thanks a lot in advance Gernot Weber -- Gernot A. Weber http://www.tux-web.de Only wimps use tape backup: _real_ men just upload their important stuff on ftp, and let the rest of the world mirror it. Linus Torvalds, after a hard drive crash - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html