Ach, das ist der Grund ...
Einer meiner Mietserver - mit 4 Jahren Betrieb der älteste solche, frisch gekündigt, um auf ein günstigeres und besseres Angebot beim selben Anbieter zu wechseln - machte immer schon gerne Probleme; in den letzten Tagen allerdings massiv, was die Migration dann auch beschleunigt hat. Insbesondere blieb er öfters ohne nachvollziehbaren Grund in den Logs einfach stehen; schon von früher her stand ein Plattenschaden im Raum.
Inzwischen dürfte derselbe sich manifestiert haben; gesund sieht das jedenfalls nicht aus:
Apr 25 03:06:31 pasture kernel: hda: dma_timer_expiry: dma status == 0x21
Apr 25 03:06:41 pasture kernel: hda: DMA timeout error
Apr 25 03:06:41 pasture kernel: hda: dma timeout error: status=0xd0 { Busy }
Apr 25 03:06:41 pasture kernel:
[...]
Apr 25 03:16:43 pasture kernel: end_request: I/O error, dev hda, sector 21867214
Apr 25 03:16:43 pasture kernel: hda: status timeout: status=0xd0 { Busy }
Apr 25 03:16:43 pasture kernel:
Apr 25 03:16:43 pasture kernel: hda: DMA disabled
Apr 25 03:16:43 pasture kernel: hda: drive not ready for command
Apr 25 03:16:43 pasture kernel: ide0: reset: success
Apr 25 03:16:43 pasture kernel: hda: irq timeout: status=0xd0 { Busy }
Apr 25 03:16:43 pasture kernel:
Apr 25 03:16:43 pasture kernel: ide0: reset: success
[...]
Apr 25 03:16:43 pasture kernel: XFS: device hda6- XFS write error in file system meta-data block 0x8 in hda6
[...]
Apr 25 03:16:43 pasture kernel: end_request: I/O error, dev hda, sector 15406414
[...]
Apr 25 03:16:43 pasture kernel: XFS: device hda6- XFS write error in file system meta-data block 0x10 in hda6
[...]
Apr 25 03:16:44 pasture kernel: XFS: device hda6- XFS write error in file system meta-data block 0x18 in hda6
[...]
Apr
25 03:16:44 pasture kernel: EXT3-fs error (device hda1):
ext3_get_inode_loc: unable to read inode block - inode=4761, block=152
Apr 25 03:16:44 pasture kernel: Aborting journal on device hda1.
[...]
Apr 25 03:16:44 pasture kernel: EXT3-fs abort (device hda1): ext3_journal_start: Detected aborted journal
Apr 25 03:16:46 pasture kernel: Remounting filesystem read-only
[...]
Apr
25 03:16:47 pasture kernel: I/O error in filesystem ("hda5") meta-data
dev hda5 block 0x7a1780 ("xfs_trans_read_buf") error 5 buf count 4096
Apr 25 03:16:47 pasture kernel: ide0: reset: success
Apr 25 03:16:47 pasture kernel: EXT3-fs error (device hda1) in ext3_reserve_inode_write: IO failure
Apr 25 03:16:47 pasture kernel: EXT3-fs error (device hda1) in ext3_dirty_inode: IO failure
[...]