Odds are with a bit of work you can find the start of the dara and  so that you can mount it.  Witb raid1 it should be doable.  With raid5/6 you need to know details about the algorithm used by the card.  I think there is a disk scanning tool that can be used to find the lvm and or fs header and from that you could use dmsetup to create a device srarting at the right spot for the header to work (without putting a partition on the device).   I use software raid just so i do not need the same type of raid card to read it on a new or repaired system 

On Fri, Jun 24, 2022, 10:38 AM ToddAndMargo via users <users@lists.fedoraproject.org> wrote:
On 6/24/22 11:16, Mauricio Tavares wrote:
> On Fri, Jun 24, 2022 at 2:10 PM ToddAndMargo via users
> <users@lists.fedoraproject.org> wrote:
>>
>> On 6/24/22 10:42, Roger Heflin wrote:
>>> Raid cards of different brands wont typically read each others configs.
>>> So any replacement card would need to be the same card, or maybe just
>>> manufacturer to read the current config and disks.
>>
>>
>> Yikes!
>
>        With that said, there are really not many makes of cards. And
> their cards are usually based on the same model. Other cards are
> really not true hardware raid controllers. You can find out by getting
> the model number from lspci.

And there is always Drive Savers

https://drivesaversdatarecovery.com/
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