Am 13.09.22 um 12:28 schrieb Reindl Harald:

Am 12.09.22 um 23:37 schrieb Wol:

quoted

On 12/09/2022 16:04, Reindl Harald wrote:

quoted

the reason for that game is that the machines are running for 10 
years now and all the new desktop hardware can't hold 4x3.5" disks 
and so just put them in a new one isn't possible

How many SATA ports does the mobo have? Can you --replace onto the new 
drives (especially if it's raid-10!), then just fail the remaining two 
drives?

Iirc raid-10 doesn't require the drives to be the same size, so 
provided the two new drives are big enough, that should just work.

Then with just two drives you change the raid to raid-1

[root@testserver:~]$ mdadm /dev/md0 --grow --level=1
mdadm: RAID10 can only be changed to RAID0

virtual machine with two drives replaced against double sized

so we are back at the dd/ssh-game and how do i set the UUIDs identical?