Hey Guys, I have made a huge mistake with my server configuration and getting now really in trouble. I'm running a WHM/cPanel server on my CentOS, it's a production server with some websites on. My root partitions "/" is running out of space and i need immediately to do something. Resize RAID partitions is a task above my abilities so i start to read everything about it. Unfortunately this is very complected so maybe you guys can help. In this step of my research & learn process i have found out what i need to do, but the how is very complected. My server has two partitions: /dev/md2: 21,0GB /dev/md3: 1979GB Unfortunately md2 is the root partition and to resize it, the server needs to got in the "rescue mode" which means in the end a longer down time. So I decide to shrink md3 and make two new partition for /var and /usr. On this point a few server prints: Code: [B][email protected] Code: [B]cat /proc/mdstat[/B] Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath] [faulty] md2 : active raid1 sdb2 sda2 20478912 blocks [2/2] [UU] md3 : active raid1 sdb3 sda3 1932506048 blocks [2/2] [UU] Code: [B][email protected] Code: [B][email protected] Code: [email protected] It's a GPT (GUID Partition Table) System. I have found this tutorial to Shrink & Grow a Software RAID, but I'm not sure if this gone work for me. http://www.howtoforge.com/how-to-resize-raid-partitions-shrink-and-grow-software-raid By the side the tutorial is from 2008. Falko describes the usage of mdadm and resize2fs, but i don't get the point of how mdadm and resize2fs working together. The other question is, if I'm using "mdadm --grow /dev/md3 --size=XXX" dose it effect on both disks? I'm trying to get this result: md02 = 20GB = mount on / md03 = 1TB = mount on /home md04 = 500GB = mount on /var md05 = 250GB = mount on /usr I'm happy about every advice.