Convert AppleRaid Concatenated Volumes

Sorry we do not support concatenated volumes. We have no plans to do so.

So Softraid does NOT support Raid 0??

RAID 0 is very different from concatenation.

A concatenation volume is simply virtually stacking disks one after the other to make a larger volume. There is no redundancy, no performance benefit, plus the added risk of losing all data if any disk in the concatenated volume fails.

A stripe volume is like a second lane on a highway, it permits up to double the throughout, with the additional risk of losing all data if either disk fails. But there is a solid performance benefit/data loss trade off, (the benefit which is lacking in concatenation).

In a stripe volume, all partitions are the same size. Concatenated volumes use any size disks, so a user may be tempted to add a 500GB drive to a 2TB drive, where the older disk is at a much higher risk of failure. In an era of $100 disk drives, concatenation is not a feature we plan to support.

Yea but ... you guys are missing the point. (a few of them:)
1) We need a method that will allow us to do something useful with our old drives.
2) Third or Forth backup is a great place for them
3) A Concatenated setup makes that easy

Is JBOD different than a Concatenated?

I just want to take a bunch of drives and address them as on directory?
I've been using Apples Disk Utility and Concatenated until El Capitan.
Now I have to go into Unix to make that happen :(

Can you help with is process?

How about a Combine or Span option?
Do you have something like that?

I believe the command line in terminal would still work.

Concatenation is not something we are going to spend resources developing or supporting. Sorry!

JBOD means "just another bunch of disks" and is a term hardware RAID vendors use as a setting to remove the RAID controller from controlling drives.

So ... creating a "Span" volume ... makes-no-sense?

The unix level gives-me-the-creeps
but if-that's-how-it's-got-to-be ...

Spanning does not make sense to us, but you can probably figure it out via the command line.

My guess is the command would be along the lines of:
diskutil AppleRAID create concat VolName JHFS+ disk1 disk2 disk3

I'm starting to think it's a Hardware thing like JBOD.
I just-now set my Mobius Enclosure to Combined (Span)
and I'm getting the assorted drives to one Volume effect I was after.

Thanks for helping me get this straight ...