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How to delete raid in Sierra?

When I try to delete the raid, I get "Delete process has failed." Under details it tells me, "An internal state error has occurred."

I have a raid set that has a failed hard drive. There are two disks, one is listed as online, the other is listed as a status missing/damaged. I have identified the disk. But am unable to delete the raid, or remove either disk, or erase the good disk. The data is already backed up else where, so I just need to remove the raid, so I can use the good disk without the raid.

The raid uses two external USB drives each 2TB

It was  Concatenated (JBOD):

Running a Mac Pro (late 2013) with Sierra.

Any suggestions?

I had this problem and resolved it by deleting the array from the command line:

>diskutil appleRAID list - This will show you the name and members of an array including its UUID

i.e.

diskutil appleRAID list

AppleRAID sets (1 found)

===============================================================================

Name:                 MyRAID

Unique ID:            8DBC7410-0DAA-4382-A7BA-A216449C858F

Type:                 Stripe

Status:               Offline

Size:                 3.0 TB (2999582687232 Bytes)

Rebuild:              manual

Device Node:          -

-------------------------------------------------------------------------------

#  DevNode   UUID                                  Status     Size

-------------------------------------------------------------------------------

-  -none-    83E89494-F806-4B5D-B323-154C53A11930  Missing/Damaged

-  -none-    394EC9AF-D521-454C-A790-79BF03ADDE3A  Missing/Damaged

2  disk2s2   818D9262-2E97-43D1-8953-448B6CEFA92D  Online     999860895744

to remove it:

>diskutil appleRAID delete *UUID*

e.g.

>diskutil appleRAID delete 8DBC7410-0DAA-4382-A7BA-A216449C858F

Started RAID operation

Destroying the RAID set 8DBC7410-0DAA-4382-A7BA-A216449C858F

Finished RAID operation

Now you can reinitialise your non-broken disks in the disk utility GUI (or on the command line)

Note that you need to fill in the UUID/Unique ID of the RAID set, not the UUID of the disk you want to delete from the set.

Thank you! I was going in circles wondering why it wasn't working.

This was super helpful, going in circles with disk utility, Thank you!

最后更新：2017-09-24 08:32:53

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