Is mdadm RAID Toast?

Andrew Wei asked: I took all my drives out and put them onto a new cpu/mobo. (upgrading) I boot up and mdadm claims it can’t boot my degraded RAID. /dev/sdb sudo mdadm –examine /dev/sdb /dev/sdb: Magic : a92b4efc Version : […]

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DegradedArray event on /dev/md1

user1821484 asked: This morning I got this message: This is an automatically generated mail message from mdadm running on A DegradedArray event had been detected on md device /dev/md1. Faithfully yours, etc. P.S. The /proc/mdstat file currently contains the following: […]

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how to know what is disk uuid for md raid1 and hdparm?

MealstroM asked: ive got md0 (raid 1) array and want to make write cache off on them during system boot (ubuntu 12.04 server). md0: /dev/sda /dev/sdc blkid: /dev/sda: UUID=”3e502de5-696d-f4b4-470e-XXX” TYPE=”linux_raid_member” /dev/sdb1: UUID=”4ba40aae-65e2-416b-8f17-XXX” TYPE=”ext2″ /dev/sdb5: UUID=”LNt5uO-ZFik-eQ0g-BEhP-FDLi-XXX” TYPE=”LVM2_member” /dev/md0: UUID=”a7eb2443-c3be-45e6-a3eb-XXX” TYPE=”ext4″ /dev/mapper/mydev-root: […]

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