Disk volume deactivated after repair

[terraterra]

Hello everyone! Following a problem with one of the 5 volumes of my D5 Thunderbolt in raid 5 I carried out the repair which lasted several days.
After the repair however the state of the raid seems to be correct but in MacOS the previous volume did not reappear, and in disk utility I see a non-activatable volume.
Does anyone have any suggestions?

[TMRyan]

1. The volume cannot be mounted. In the disk tool of mac, whether you can select the "first aid" option for the disk, you can try first aid to repair the disk.
2. The file system may be damaged, you can try a third-party tool to repair it, or take it to a data recovery company for data recovery.