@softraid-support I've given up on Time Machine. I'm just going to use a combo of Carbon Copy Cloner and CrashPlan to do my backups. Time Machine disa...

@softraid-support No luck, still the generic Mac OS Notification: BACKUP NOT COMPLETED - Time Machine couldn't back up to "%volume_name%"

@softraid-support So far so good, but the failure usually has come at the 99% mark:

@softraid-support OK, in the meantime, I went ahead with 6.0.4 b5 and formatted the drive as APFS through SoftRAID and made it a RAID 1 volume. Testin...

@softraid-support It has been upgraded to 6. On the URL you sent, it only has the option for SoftRAID 6 XT to Pro Upgrade

@softraid-support 6.0.4 b5 gives this error: RAID Level Not Supported You are trying to use a RAID level which is not supported by your SoftRAID l...

@softraid-support Sorry for the delay in getting back to this. Started the process from your last reply and it's said SoftRAID Evaluation has expired....

@softraid-support Carbon Copy Cloner says, "Copying to or from a Time Machine backup volume is not supported." BTW, I've even tried using Disk Utili...

@softraid-support Are you saying use CCC on the other external drive that has completed Time Machine volumes to the RAID 5 drive?

@softraid-support First aid sees no issues. I've tried a bunch of different things, including reinitializing the 4 individual drives, erasing, a...

@softraid-support This has been already done if you review this now two-page thread. The latest volume is an APFS RAID 5 volume created in the beta an...

@softraid-support Yes, essentially correct. I'm never prompted to make it a Time Machine drive, but I believe that has to do with already having an ex...

@softraid-support Followed those steps to make the APFS volume, and now back at 6.0.3. Timemachine still can't complete its first backup. 🤢 🤮

@softraid-support Just upgraded to 6.0.3 (rebooted and allowed the OWC driver in Security) Still not seeing the ability to create an APFS volume from ...

@softraid-support That's what I'm attempting to do. No APFS option is available no matter what settings I try for a new volume: