On 10/18/2012 12:58 PM, Manish Kathuria wrote: > On Thu, Oct 18, 2012 at 9:25 PM, Bowie Bailey <Bowie_Bailey at buc.com> wrote: >> On 10/18/2012 11:29 AM, Manish Kathuria wrote: >>> Has anyone created or rebuilt a Linux Software RAID having mirrored >>> partitions on unequal sized hard disks ? There is a CentOS 5 server >>> having two 400 GB hard disks with five mirrored partitions (software >>> RAID 1) and one of the hard disks is dying. Since new 400 GB HDDs are >>> not available here, we are exploring the possibility of replacing the >>> faulty hard disk with one of a higher capacity (500 GB or more). And >>> once it is fully replicated, we plan to replace the other 400 GB HDD >>> also with another hard disk of the same higher capacity. >>> >>> Just want to know if anyone has done something similar and what are >>> the chances of success (or data loss) ? >> I've done this with a 3-drive software raid 1. It originally had 750GB >> drives which I replaced with 1TB drives. >> >> Swapped them out one by one configuring them with the exact same >> partition structure as the others and allowing each one to resync before >> continuing. Once they were all in, I resized the filesystem (ext3) to >> take advantage of the extra space. >> >> -- >> Bowie > That sounds perfect. Did you create the new partitions manually using > fdisk / sfdisk ? I guess that can take care of the logical partitions. Yes. I used sfdisk to copy the partition table. -- Bowie