You can mount the raid on the new system and the data will not be lost.
The question is: why has the RAID "lost it's functionality"?
If the RAID can't be seen/recovered NOW, it will hardly be good on a fresh install.
Calling Dr. RAID geaves to figure it out, 
More details are required. Start here:
For some reason, the system has lost its functionality, it does not boot.
mmm.... This sentence is ambiguous, I'm not sure if you have lost the OMV functionality or the Raid functionality. I would say that it has lost the OMV functionality but after reading Soma I am no longer sure 
.... This sentence is ambiguous,
You're right. Should have read better.
In that case, all it's needed to check if RAID is OK, is to boot a live system and see it.
You're right. Should have read better.
In that case, all it's needed to check if RAID is OK, is to boot a live system and see it.
you are right. But I'm afraid not to damage my array in this way, not to damage the existing data on it.
Maybe better to connect my drives to some program to read data from the drives that were part of the RAID?
Maybe better to connect my drives to some program to read data from the drives that were part of the RAID?
You don't need to do any of that. You just have to mount the Raid on the new system. OMV must recognize this.
In any case, you have not clarified if what is not working right now is the Raid or the OMV system... You should confirm this.
In any case, you have not clarified if what is not working right now is the Raid or the OMV system... You should confirm this.
OpenMediaVault is not working. The system does not boot
you are right. But I'm afraid not to damage my array in this way, not to damage the existing data on it.
Maybe better to connect my drives to some program to read data from the drives that were part of the RAID?
You have a backup right? as raid is not a backup. should be no problems
You have a backup right? as raid is not a backup. should be no problems
unfortunately, there is no backup (my mistake).
I'm afraid to simply connect disks to another working OMV system. Now I will test R-Studio and Hetman RAID Recovery - programs that can read data from a non-working RAID array.
did you have OMV installed on the Raid?
how many drives total did you have? 3 disk for raid than a boot drive?
unfortunately, there is no backup (my mistake).
Ouch!
Alles anzeigendid you have OMV installed on the Raid?
how many drives total did you have? 3 disk for raid than a boot drive?
Ouch!
This is raid5 created on OpenMediaVault (3 disks)
This is raid5 created on OpenMediaVault (3 disks)
so you have a boot disk also? if you created this on OMV?
unfortunately, there is no backup (my mistake).
I'm afraid to simply connect disks to another working OMV system. Now I will test R-Studio and Hetman RAID Recovery - programs that can read data from a non-working RAID array.
this is also a working way to restore data from OMV system disks in the event that what is written on post 2 does not work for some reason.
Connect disks from the OMV system to a Windows PC. The system, of course, defines them as unallocated and offers to initialize them - we do not do this.
Start Hetman RAID Recovery. The program sees these disks and automatically assembles RAID5 from them, because in fact it is not destroyed and remained on the disks.
After scanning the array defined by the program, the program displays all its data. It remains only to save them in another place.
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