Doing it this way seems to be a high risk operation. Furthermore I want not do this because then I will have two raids: one raid per software (md) into one per hardware.. my thoughts are about copying manually the dirs of the operating system, then modifying configurations.. I think it is a "more secure" process.
Thanks for the answer jdow ;) 2011/12/20 jdow <[email protected]> > First take a complete backup of the md raid. > > Then if the laws if Innate Perversity of Inanimate Objects you'll be able > to > move the disks and have them just work. Your data is protected. (If you had > no backup IPIO would, of course, lead to the transition failing > expensively.) > > Even if IPIO does not work you restore from the complete backup to the same > disks they were on after the hardware RAID assembles itself. (Despite the > numerous times IPIO seems to work, I still figure it's a silly > superstition. > It does lead to a correct degree of paranoia, though.) > > {^_^} > > > On 2011/12/19 09:18, Felip Moll wrote: > >> Well, I will remake my question to not scare possible "answerers": >> >> How to move a SL6.0 system with md raid (raid per software), to another >> server >> without mantaining the raid per software? >> >> Thanks! >> >> >> >> 2011/12/16 Felip Moll <[email protected] <mailto:[email protected]>> >> >> >> Hello all! >> >> Recently I installed and configured a Scientific Linux to run as a high >> performance computing cluster with 15 slave nodes and one master. I >> did this >> while an older system with RedHat 5.0 was running in order >> to avoid users to stop their computations. All gone well. I migrated >> node to >> node and now I have a flawlessly cluster with SL6!. >> >> Well, the fact is that while migrating I used the node1 to install SL6 >> while >> the node0 was hosting the old master operating system. Node1 has less >> ram >> and no raid capabilities, so I configured a Raid5 per software when >> installing, using md linux software (which comes per default to a >> normal >> installation when you select "raid"). Node0 has a Raid 5 hardware >> controller. >> >> Now I want to move the new master node1, into node0. I thought about >> this >> and I have to shutdown node1, node0, and with a LiveCD partition the >> harddisk of node0 and copy the contents of the disk of node1 into it. >> Then >> make grub install. >> >> All right but, what do you think that I should take in consideration >> regarding to Raid and md? I will have to modify /etc/fstab and also >> delete >> /etc/mdadm.conf to avoid md running. Anything more? >> >> Thank you very much! >> >> >>
