Hi On 4/22/19 4:07 PM, Gandalf Corvotempesta wrote: > What I would do is the following, tell me if it's wrong or if there is > a better and safer way: > > - power off > - replace one disk (keep the old one safe) > - power on and live boot a live image > - start the replication > - repeat for each disk in the server > > as long I don't mount the local storage, in case of failure, I still > have the old disk identical to the failed one... Frankly, I would opt either to get a new server - depending how old very very very very old is - or boot a live disk and copy the *contents* of everything over to one of the new disks attached to the system via USB or any other means (spare on-board SATA) as my guess would be a single disk should be able to hold everything you currently have. After this was done successfully, put all old disks out of the system as a safe-guard if something goes terribly wrong. Then put in all new disks EXCEPT the one where your copy is on. Boot the live system again, create your mirrors/raids (some may be incomplete at the start) as you like and then start copying data back from the "copy disk". Once done and verified[1] you should be able to re-partition the "copy disk" and make all mirrors/raids complete again. Having all that said, for servers older than 8-10yrs it would probably be better to get a new set of hardware and copy data between both systems. Cheers Carsten [1] if you OS is on these disks as well, you may want to check if you can boot your system from the new disks! -- Dr. Carsten Aulbert, Max Planck Institute for Gravitational Physics, Callinstraße 38, 30167 Hannover, Germany Phone: +49 511 762 17185
