Questions tagged [mdadm]
A linux utility used to manage software RAID devices.
604 questions
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installing grub 2 on mdadm, which device?
when installing grub(2) to mdadm devices are you supposed to install it to /dev/sdX or /dev/mdX?
2
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Drive was unable to assemble into the array
I ran
mdadm -A /dev/md0 /dev/sda1 /dev/sdb1
Only /dev/sdb1 was loaded into the array though. I have a few more arrays on the same two drives too. Each time the partition on sda failed. dmesg told me ...
4
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2
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what is commit=0 for ext4? does mdadm not support it?
I see this in my dmesg log
EXT4-fs (md1): re-mounted. Opts: commit=0
EXT4-fs (md2): re-mounted. Opts: commit=0
EXT4-fs (md3): re-mounted. Opts: commit=0
I think that means that dealloc is disabled? ...
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Is there a 'friction-free' way of converting a RAID1 to a RAID5?
What's the best way to convert a Linux software (that is, mdadm) RAID1 array to a RAID5 array? If the procedure is different for the cases of 3-disk RAID5 vs. 4-disk RAID5, how is it different?