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Raid 1 to raid 10 on sys
Hi
I am trying to install OS on Raid 10 on sys but failing. (have 4x2TB disks)
Ovh installer by default configure all 4 disks in raid 1.
what i did so far.
1. I made install using 2 disks in raid 1 from ovh installer
2. Then added a new raid 10 array with missing disks
3. then tried dd from old disks to new disks but can't get it done at all
4. then I am lost as default installer have lvm also installed.
I tried other method where using qemu to install os directly on host disk from rescue system and then boot from it but with qemu I can't use all 4 disk + cdrom because qemu only allow 4 ide disks. so only works if I have 2 hdd + cdrom .
qemu-system-x86_64 \
-enable-kvm \
-nodefaults \
-drive file=proxmox-ve_7.2-1.iso,media=cdrom \
-hda /dev/sda \
-hdb /dev/sdb \
-hdc /dev/sdc \
-hdd /dev/sdd \
-bios /usr/share/ovmf/OVMF.fd \
-smp 4 -m 4G \
-net nic -net user \
-vga std \
-vnc localhost:0 \
-k en-us
what is best way to handle this situation ?
Comments
I created a small RAID1 setup containing the root filesystem, and once installed made the remaining space into a RAID10 array carrying an LVM PV. Not sure if this is the right way, but it works… My box is also a 4x2T config.
At the time I was under the impression that grub would not boot from a system volume on RAID10 (though it will RAID1) though I think I was wrong about that and only /boot needs to be RAID1 or just a single partition/volume.
Ya, that can be done though.
https://lowendtalk.com/post/quote/174583/Comment_3292088
Just fixing link for him : https://lowendtalk.com/discussion/comment/3292088/#Comment_3292088
I tried the suggestion, specially this link shared by @Falzo but with me when I convert Raid 0 to Raid 10, it get stuck at 99.9% and after a while system stops responding.
Did some reading around and found that raid sync is waiting for status and but not receiving from disks. Could be bad disks but I did smartctl long test, coming out fine. Also if I go raid 1 install, its working absolutely fine.