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Topic starter
- STEPS ALREADY TAKEN:
- SoftRAID validation run — confirmed degraded/failed status
- TechTool Pro 21 rebuild attempted — failed
- DiskWarrior attempted — not responding
- Physical drive reseat performed — volume remounted read-only after reseat
- Full 22.71TB backup completed to NAS via rsync — data confirmed safeQUESTIONS:
1. Can this RAID 5 volume be repaired without reformatting given 3 disks showing I/O errors?
2. Is the read-only mount a SoftRAID protective measure and can it be used for repair?
3. Should we replace the failed drives before attempting repair?
4. Could this be an enclosure/backplane issue rather than drive failure given simultaneous failure of 3 drives and SMART passing on all drives?Please advise on the best path forward. Data has been backed up so we can proceed with whatever repair approach you recommend.
Posted : 26/06/2026 6:51 pm
Attach a SoftRAID support file, it will help me reply. Its not a good sign when Disk Warrior stalls, however.
Do NOT replace a disk at the moment
Posted : 26/06/2026 7:16 pm
Topic starter
I have two Macs both running Tahoe and I cant get Disk Warrior past "starting services" on either machine and I have doubled checked to make sure both Macs have all 5 of the required files in Full Disk Access
Posted : 28/06/2026 7:44 pm
@slevitus
What version of Disk Warrior are you running? I have Tahoe and Disk Warrior is launching. 5.3.2 is my version. 5.3.1 also launches and asks for upgrading.
Posted : 29/06/2026 1:02 am
