After upgrading to 13.4 I can no longer mount a softraid 7.5 raid drive. The os keeps asking me to eject , ignore or Initialize the drive.
Not good. 13.4 will always mount a SoftRAID volume. So your directory is damaged on the volume (by the upgrade probably)
If this is an HFS volume, Disk Warrior is 95% likely to be able to fix this. Otherwise you will need (APFS or HFS) to run R-Studio, or Disk Drill to recover data and copy it off.
Another option, which might work is techTool Pro, if this is an APFS volume, they have tried to make an APFS directory repair tool. I do not have feedback from users yet how well it works, but it may repair an APFS volume.
Sorry about this.
I am actually more incline to think that its the softraid driver that may need to be updated. A raid is a Raid but there is a good chance that the Softraid kernel extension is not working correctly with changes in the new MacOS upgrade. Either way what is the point to have a raid 5,6 or 10 with multiple drives that are not failing and still not have the ability to see the data. Maybe you guys look into this a bit more deeply instead of having me buy a 3rd party sofware to correct the issue ?
One ore thing, I did try Disk Drill and it is capable to see the data as SoftRaid_Media. So how is it that the volume is not present but the data is visible ? It make me more incline to think at a drive issue on your end.
The SoftRaid logs state 'May 26 14:36:27 - SoftRAID Driver: The SoftRAID volume "ssd_media" is missing one or more disks. It has been mounted but will not offer the normal level of data protection.'
So mounter according to logs with a missing drive, but no where to be found in the Finder or POSIX shell Terminal interfaces in /Volumes ?
Post a SoftRAID technical support file, and I can take a look at your issues. Seems like it is more than just a damage directory. With 13.4, the SoftRAID driver always is loading. its not that.
You have several issues.
you are missing a disk. Did it fail? Cancel the validate. Use "blink disk light" feature to isolate where the missing disk is by process of elimination. Now swap the missing disk with any other disk. Is it still not showing up? That will help tell you if an enclosure issue, or disk issue. The disk failure may have happened in a way that triggered the volume damage. Generally SSD's fail in a black/white way, they work, then do not. However, sometimes when SSD's fail, removing them from power for a day or two, they can come back to life.
The volume structure is OK (like the exterior of a building). the volume file system is damaged. It appears the volume header is seriously damaged, as your volume is showing "Unknown format" for file system. I am guessing this is an APFS volume. I would scan it with R-Studio in trial mode and see if it can get your "structure". (file names/folder hierarchy) Based on what you see, you can decide whether to purchase/recover the data.
Sorry for this. I do not think this is a SoftRAID caused problem. There are no signs of that. Most likely this was your drive, or enclosure failing (see paragraph 1)