#1094 Issue `closed`: mdadm do not restored on new hardware¶

Labels: enhancement, needs sponsorship, special hardware or VM, no-issue-activity

urobasa opened issue at 2016-12-01 10:31:¶

Relax-and-Recover (rear) Issue Template¶

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rear version (/usr/sbin/rear -V): 1.19
OS version (cat /etc/rear/os.conf or lsb_release -a): Centos 7 x64
rear configuration files (cat /etc/rear/site.conf or cat /etc/rear/local.conf):
BACKUP=NETFS
OUTPUT=ISO
BACKUP_URL=nfs://site/mnt/storage3/bak
Brief description of the issue
On backup server enabled intel raid mdadm (mirror)
On new server does not have intel raid
after mapping 2 disk rear stop on error - An error occurred during layout recreation
partitions on mapped disks created with the type of Linux rather than the type of raid autodetection

gdha commented at 2017-01-07 11:03:¶

It has to do with the --metadata=imsm Intel Raid - I have heard it before ReaR cannot cope with it. Sorry, we do not have this kind of hardware so it is very difficult to help you.

Kolesar commented at 2017-09-13 14:00:¶

I have RAID1 made by BIOS and I tried make some fix adding follow:

# If imsm is set, we can ignore RAID altogether
if grep -qw 'imsm' /proc/mdstat; then
   return
fi

on the beginning of the:
/usr/share/rear/layout/save/GNU/Linux/210_raid_layout.sh
and
/usr/share/rear/prep/GNU/Linux/230_include_md_tools.sh

Because, I do not want to touch any on RAID through Linux, just make partitions and LVM if exists, but I did not finish it, because I have some another issues. Maybe, you can try this on your environment if you have similar situation.