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+--- Thread: Asus FlashStor FS6706T Raid Failur (/showthread.php?tid=12281)
Asus FlashStor FS6706T Raid Failur - Enquiries - 08-27-2025
I have a Asus FlashStor FS6706T with all 6 bays filled in with 4tb NVME each.
I have two volumes running a raid 5.
Recently, one of the NVME drives failed and I tried to replace it with same said NVME but it wont rebuild and says inaccessable.
If I remove the volume that works and free up the other 3 nvme's, can I use one of those to do a rebuild of my other volume?
RE: Asus FlashStor FS6706T Raid Failur - ed - 08-29-2025
Thanks for your message, and sorry to hear you’re having issues with your FlashStor FS6706T setup.
From what you’ve described, it sounds like one of your RAID 5 volumes became degraded due to a failed NVMe, and when you inserted a replacement drive, the system didn’t automatically begin a rebuild — instead showing the volume as inaccessible. That usually means the system isn’t recognizing the array as repairable, which can happen if:
• The array degraded too long before replacement
• Another drive in the array is borderline failing or unreadable
• The replacement drive wasn’t initialized or compatible in the same way (even if it’s the same model)
⸻
Regarding your question:
If I remove the volume that works and free up the other 3 NVMe drives, can I use one of those to do a rebuild of my other volume?
Unfortunately, no. RAID rebuilds require that the replacement disk be blank/unallocated and added as a replacement to the same degraded RAID group. You can’t use a disk that was previously part of a separate RAID group or volume without fully wiping it first. Also, simply freeing up space on another volume or deleting it doesn’t mean its drives can be “donated” to another RAID group unless you explicitly remove that volume and wipe the drives.