Budiono wrote: > Thank guy's for all your response, > What I'm planning is change all the harddrives to bigger size, It is > possible to do this, without using (such as tape backup), with mdadm ? > Is there a reference website to do this ? More details are needed: - how many disks? (and how many gigabytes?) - how many volumes, partitions? - what level of RAID? - can you have all the old and new disks connected at the same time? - do you want to do everything with zero down time? (you need hotpluggable hardware, in this case) There are many ways to do what you want. Best regards. -- Roberto Ragusa mail at robertoragusa.it