Anteriormente, eu tinha uma invasão de software configurada usando ( mdadm ) das unidades sda e sdb . sdb falhou e a única maneira de reiniciar o sistema foi desconectando o segundo disco rígido.
Agora adicionei sdb e sdc ao meu RAID. sda é o mais antigo (então é mais provável que falhe) e é a unidade a partir da qual inicializamos (eu acho, como posso verificar?).
Como posso garantir e testar (através da configuração do GRUB, etc.) que se sda falhar, ainda serei capaz de inicializar minha máquina.
fdisk -l :
Disk /dev/sda: 250.0 GB, 250000000000 bytes
255 heads, 63 sectors/track, 30394 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000080
Device Boot Start End Blocks Id System
/dev/sda1 * 1 30064 241489048+ fd Linux raid autodetect
/dev/sda2 30065 30394 2650725 5 Extended
/dev/sda5 30065 30394 2650693+ fd Linux raid autodetect
Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 30064 241489048+ fd Linux raid autodetect
Partition 1 does not start on physical sector boundary.
/dev/sdb2 30065 30394 2650725 5 Extended
/dev/sdb5 30065 30394 2650693+ fd Linux raid autodetect
Partition 5 does not start on physical sector boundary.
Disk /dev/sdc: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sdc1 * 1 30064 241489048+ fd Linux raid autodetect
Partition 1 does not start on physical sector boundary.
/dev/sdc2 30065 30394 2650725 5 Extended
/dev/sdc5 30065 30394 2650693+ fd Linux raid autodetect
Partition 5 does not start on physical sector boundary.
Disk /dev/md0: 247.3 GB, 247284695040 bytes
2 heads, 4 sectors/track, 60372240 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Alignment offset: 512 bytes
Disk identifier: 0x00000000
Disk /dev/md0 doesn't contain a valid partition table
Disk /dev/md1: 2714 MB, 2714238976 bytes
2 heads, 4 sectors/track, 662656 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Alignment offset: 512 bytes
Disk identifier: 0x00000000
Disk /dev/md1 doesn't contain a valid partition table