How to break Raid 1 on centos

Novisoft

• February 12, 2014 04:06

Hello, I would like to break RAID-1 on Centos. I prefere using 2 separate disks and cpanel backup instead of raid 1 but I am looking for the exact steps to do that. I am able to boot the server in rescue mode if necessary. Below some outputs : root@ns3096378 [~]# df -h Filesystem Size Used Avail Use% Mounted on rootfs 97G 4.5G 88G 5% / /dev/root 97G 4.5G 88G 5% / devtmpfs 16G 252K 16G 1% /dev /dev/md3 1.7T 235M 1.6T 1% /home tmpfs 16G 0 16G 0% /dev/shm /dev/loop0 886M 18M 824M 3% /tmp /dev/loop0 886M 18M 824M 3% /var/tmp === root@ns3096378 [~]# fdisk -l WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted. Disk /dev/sda: 2000.4 GB, 2000398934016 bytes 255 heads, 63 sectors/track, 243201 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sda1 1 243202 1953514583+ ee GPT WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted. Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes 255 heads, 63 sectors/track, 243201 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdb1 1 243202 1953514583+ ee GPT Disk /dev/md3: 1864.1 GB, 1864079704064 bytes 2 heads, 4 sectors/track, 455097584 cylinders Units = cylinders of 8 * 512 = 4096 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/md2: 104.9 GB, 104856485888 bytes 2 heads, 4 sectors/track, 25599728 cylinders Units = cylinders of 8 * 512 = 4096 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 === root@ns3096378 [~]# more /etc/fstab # /dev/md2 / ext3 errors=remount-ro,usrjquota=quota.user,jqfmt=vfsv0 0 1 /dev/md3 /home ext3 defaults 1 2 /dev/sda4 swap swap defaults 0 0 /dev/sdb4 swap swap defaults 0 0 proc /proc proc defaults 0 0 sysfs /sys sysfs defaults 0 0 tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts defaults 0 0
Thanks in advance for your precious help, Lyes

• 

  cPanelMichael

  • February 12, 2014 12:34

  Hello :) This is more of a filesystem issue and not necessarily related to the cPanel software. You will likely receive better input by searching for guides on this on a search engine or checking on a forum dedicated to discussions of RAID. For instance, searching "how to break raid1" on Google yields several results that you might find useful. Thank you.

  0

Please sign in to leave a comment.