Messages in this thread | | | Date | Thu, 03 Apr 2008 11:46:34 +0600 | From | "Artem S. Tashkinov" <> | Subject | Recreating RAID1 after the reckless mdadm usage |
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Hello,
I have initially created RAID1 in a wrong way:
mdadm --create --verbose /dev/md0 --level=1 --force --raid-devices=1 /dev/sda1
Note the --raid-devices=1 option and nowhere to be found 'missing' argument.
People have told me I wouldn't be able to add another partition to have a working RAID1. Unfortunately, I've already populated /dev/md0 with a great deal of data.
Then I did this:
mdadm --stop /dev/md0 mdadm --create --assume-clean --verbose /dev/md0 --level=1 --force --raid-devices=2 /dev/sda1 missing (which is obviously the right command).
After doing that I see that my data on a recreated /dev/md0 is there (It seems like it's intact). Is it safe to use this RAID1 and is my data safe? Can I now add the second block device to md0 using 'mdadm /dev/md0 -a /dev/sdb1' command?
With respect,
Artem S. Tashkinov
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