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Migrating Raid 0 to Raid 10

cn flag

I m new for Software RAID and i have planned to buy 2 Nos of 4TB and i m already having 2 No's of 3TB (Non-RAID). Running Ubuntu 20.04 Server.

What my current plan to create a RAID 10 Partition Like 4TB + 3TB and 4TB + 3TB, so that i can get 7TB of Space. My problem is Both 3TB are having 1.5 TB Data. if i want to create RAID i need to format the drive and i dont have backup drive to store 3TB data.

What im thinking is moving that 3 TB data to one of the new 4TB drive and create a RAID0 Partition like 4+3 TB then move the data to RAID0.

Is there any way that i migrate RAID0 to RAID10 without loosing data?

in flag
Speaking as someone who has unfortunately helped lots of people fix a horrible mess involving failed data juggling actions, all I can say is this: don’t try to find shortcuts. If you cannot do RAID correctly, do not do it at all. There are many alternatives to data redundancy, if that’s what you’re looking for. When you try to take shortcuts, bad things happen
cn flag
Ray
Exactly what matigo said. Go out and buy a 3 TB external drive and copy it over, migrate the RAID, and then move it back. And then use the 3 TB drive as a spare external backup disk. Any other solution is quite likely to go wrong, costing you your 3 TB of data in the process.
Selvakumar S avatar
cn flag
ok will do the same
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