> [730639.815511] ata1.00: cmd c8/00:08:ef:9f:90/00:00:00:00:00/e1 tag 0 > dma 4096 in > [730639.815513] res 51/40:00:f4:9f:90/40:00:01:00:00/e1 Emask 0x9 > (media error) > [730639.824457] ata1.00: status: { DRDY ERR } > [730639.828930] ata1.00: error: { UNC } > [730639.848936] ata1.00: configured for UDMA/33 If the drives support scterc, then it should be enabled to allow the drive to fail a single sector quickly without going into deep recovery mode. Run "smartctl -l scterc /dev/disk" to check if it's enabled. To enable it for drives supporting it, and allow higher timeouts for those who don't, I have the following in my /etc/rc.local to do this: for i in {b..h} do dev=sd$i smartctl -l scterc,70,70 /dev/$dev || echo 180 > /sys/block/$dev/device/timeout done Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 98013356 roy@xxxxxxxxxxxxx http://blogg.karlsbakk.net/ GPG Public key: http://karlsbakk.net/roysigurdkarlsbakk.pubkey.txt -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med xenotyp etymologi. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk. -- 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