> > This is correct, but I should note that I did not add it as > > write-mostly just > > because it's an older drive, but because it is my normal set-up for > > md3: > > a RAID1 mirror of a fast SSD (sdf) and a write-mostly HDD (sdg in > > this case). > > Again, I find it odd that sdg while rebuilding is reading any sectors. > The read errors are coming from sdg. That it's also write-mostly > enhances the mystery why sdg is being read from. > > I would fail the HDD, and btrfs scrub the array which in effect should > scrub only sdf. And it may also need an offline btrfsck. The source > (sdf) is already suspect because of btrfs not finding checksums where > it was expecting to find them, and then on top of this you're getting > sdg producing bad sector errors on reads. Have you done a SMART check of sdg? smartctl -H first, then smartctl -t short, then smartctl -t long (with smartctl -H between them) > You might also consider posting the configuration and full dmesg to > the btrfs list. I'm curious what btrfs developers think of this > configuration. It's not btrfs - it's below that. 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