Hello Your problem has nothing to do with glusterfs. You have a hdd failure. Seems like you need to replace your hard disks: > Jul 12 13:23:03 server01 kernel: hdb: dma_intr: status=0x51 { DriveReady > SeekComplete Error } > Jul 12 13:23:03 server01 kernel: hdb: dma_intr: error=0x40 { > UncorrectableError }, LBAsect=345341, sector=345335 > Jul 12 13:23:03 server01 kernel: ide: failed opcode was: unknown > Jul 12 13:23:03 server01 kernel: end_request: I/O error, dev hdb, sector > 345335 -- Best regards, Anton Khalikov