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MDADM RAID0 issue

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I had previously set up a RAID0 array with 4 drives of 14tb each that was getting full.

Yesterday I decided to add one more drive to it and temporarily changed the array to RAID4.

I heard it was supposed to get back to RAID0 automatically a day or two after.

Yesterday evening, my computer had an issue with the boot drive and ended up completely frozen, we tried everything but I had to reinstall Ubuntu on it (on a 512 gb SSD).

Now, the RAID configuration is gone and I reinstalled mdadm.

When I look at the disks, the 4 of them still show "Linux RAID Member" and the 5th one shows as "Free space" with a GUID partition table.

is there a way to put back together the RAID0 array without losing all the data that's in it? either the original one (4 disks) or with the 5th one?

Any help or advice would be appreciated! thanks in advance Olivier

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id flag
Very unfortunate to say that with a RAID 0 it has no redundancy at all so any type of failure to the array will result in complete data loss. https://www.stalliontek.com/blog/2018/04/09/advantages-and-disadvantages-of-raid-levels/
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