jin zhencheng schrieb:
hi; i use kernel is 2.6.26.2 what i do as follow: 1, I create a raid5: mdadm -C /dev/md5 -l 5 -n 4 /dev/sda /dev/sdb /dev/sdc /dev/sdd --metadata=1.0 --assume-clean 2, dd if=/dev/zero of=/dev/md5 bs=1M& write data to this raid5 3, mdadm --manage /dev/md5 -f /dev/sda 4 mdadm --manage /dev/md5 -f /dev/sdb if i faild 2 disks ,then the OS kernel display OOP error and kernel down do somebody know why ? Is MD/RAID5 bug ?
RAID5 can only tolerate ONE drive to fail of ALL members. If you want to be able to fail two drives you will have to use RAID6 or RAID5 with one hot-spare (and give it time to rebuild before failing the second drive).
PLEASE read the documentation on raid levels, like on wikipedia. Joachim Otahal -- 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
