[ 1079.511613] ata2: SATA link down (SStatus 0 SControl 310)
[ 1079.511633] ata2: EH complete
[ 1079.527546] ata2: exception Emask 0x10 SAct 0x0 SErr 0x4000000 action 0xe frozen
[ 1079.527550] ata2: irq_stat 0x00000040, connection status changed
[ 1079.527552] ata2: SError: { DevExch }
[ 1079.527556] ata2: limiting SATA link speed to 1.5 Gbps
[ 1079.527567] ata2: hard resetting link
% ls -l /sys/block/sd*                                                                                                                        ~
lrwxrwxrwx 1 root root 0 Aug 27 20:58 /sys/block/sda -> ../devices/pci0000:00/0000:00:1f.2/ata1/host0/target0:0:0/0:0:0:0/block/sda/
lrwxrwxrwx 1 root root 0 Aug 27 20:58 /sys/block/sdb -> ../devices/pci0000:00/0000:00:1f.2/ata3/host2/target2:0:0/2:0:0:0/block/sdb/
lrwxrwxrwx 1 root root 0 Aug 27 20:58 /sys/block/sdc -> ../devices/pci0000:00/0000:00:1f.2/ata4/host3/target3:0:0/3:0:0:0/block/sdc/
lrwxrwxrwx 1 root root 0 Aug 27 20:58 /sys/block/sdd -> ../devices/pci0000:00/0000:00:1f.2/ata5/host4/target4:0:0/4:0:0:0/block/sdd/