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 | |
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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