dev/sdc: GUID Partition Table partitioning. dev/sdb1: 1.0 MB, Microsoft LDM metadata. The "Disks" program in Ubuntu displays the following partitions for my drives: /dev/sdb: GUID Partition Table. The relevant output from cat /proc/partitions (for just those three RAID0 drives) is: 8 16 976762584 sdb The relevant output from sudo lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL (for just those three RAID0 drives) is: NAME FSTYPE SIZE MOUNTPOINT LABEL My 500 GB partition has a block size of 4 kb (4096 bytes per cluster), and my 2.3 TB partition has a block size of 64 kb (65536 bytes per cluster). I have no idea if this block size is the same as the chunk size that they mention. I used a non-default block size for at least one of my RAID 0 partitions when I set them up years ago.
This means that I need to NOT use the full disks when creating the RAID array, but instead use just part of them. I have two RAID 0 partitions spread across those three drives: one 500 GB and 2.3 TB.I have three 1 TB drives, not two drives (of whatever size they used).This is how my setup differs from their example: I am afraid to break it by doing it wrong, and therefore wish to get the advice of somebody more experienced. My concern is that my setup is different to their example, and I am not sure that the commands should be entered exactly the same for my setup.
Why? The post includes a warning about how you must not write to it if you enter the wrong chunk size it's understandable how that could cause problems. I have not tried following these instructions yet. According to that user, and the other posters in the thread, it actually does work. The main command used is sudo mdadm -build /dev/md0 -chunk=64 -level=0 -raid-devices=2 /dev/sdd2 /dev/sdc2.
The post describes how to get Ubuntu to see a Windows RAID 0 array that is made up of two drives.
I need access to this data on Ubuntu, and can't really get anything real done until I have access. However, all of my important data is on Windows software RAID 0 array, and I need it to stay there as I'm also dual booting Windows. I am a new Ubuntu user with a fresh installation, and am eager to get started with it.