Hi,

I have Unassigned devices and UD plus and UD preclear.

Using Unraid 7.1.2

I have 2 white label disks that are already formatted, they show up in UD.

Tried to preclear it says "There are no disks that can be precleared.

A disk must be cleared of all partitions before it can be precleared. You can use Unassigned Devices to clear the disk."

Went into UD, can not figure out how to delete partitions.

How do I get it to work?

Thanks

Have you allowed destructive mode in the UD Settings?

I believe so. Is there an issue with Unraid 7? or what am I missing? Any help is appreciated.

I figured it out, for anyone who needs the same info:

Unassigned Devices Plugin

 

Unassigned Devices (UD) includes a lot of functionality and has become a bit complex.  Please read the first and second post.  You will find answers to most of your questions.

 

Note: You will need to install the Unassigned Devices Plus (UD+) plugin to enable HFS+ and APFS (Apple file formats) and exFAT (flash larger than 64MB) disk mounting, and to enable 'Destructive Mode' for formatting of some UD supported disk formats.

 

UD and UD+ are available in Community Applications (CA).

• Hover your mouse over any active area on the UD page and a tool tip will show you what clicking that area does.

• UD supports all Unraid native disk formats.  You will need to install the 'Unassigned Devices Plus' plugin to mount HFS+, APFS and exFAT file formats.

• UD has a destructive mode that allows deleting disk partitions and formatting disks.  If Destructive Mode is not turned on in the UD Settings, you WILL NOT be able to format a disk.  Go the the Settings page and scroll to the bottom to see the UD settings.  To format a disk:

  • Destructive Mode must be enabled.  You will need to install the 'Unassigned Devices Plus' plugin to enable Destructive Mode.  UD Plus will install the 'parted' package needed for formatting and deleting partitions.

  • Disk must have all partitions removed.  Unmount the disk, click on the '+' icon next to the serial number, and click on all red-X to delete partitions.  You can also click on the red-X next to the disk serial number to delete all partitions.

  • A precelared disk will have a partition without a file system and will show a grayed 'Mount' button.  You can assign this disk directly to the array and Unraid will see the disk as 'pre-cleared' and will not clear it again.  If you want to format the disk for use in UD, you need to first click on the red-X on the preclear status line to remove the preclear stats and then remove all partitions by clicking on the red-X icon next to the serial number and then you'll be able to format the disk.

• There are different operations in various active areas (especially the disk serial number) based on whether or not the disk drive is mounted.  If the disk is not mounted, click on the '+' icon by the serial number, click on the partition name, you will get a pop-up dialog to change the mount point name.  This will now become the mount point and the share name when the disk is shared.

• In order to share any UD device, sharing needs to be enabled in the UD Settings and the switch turned on to share the particular device.

• SSD disks formatted with xfs, btrfs, or ext4 will be mounted with 'discard' if the "Mount SSDs with 'discard' option?" is set to "Yes".  This includes encrypted disks.  Reiserfs does not support discard.  This enables TRIM on SSD devices.  If you have the trim plugin installed, it is recommended to not mount SSD disks with discard.

• Disks formatted XFS or BTRFS will be partitioned compatible with the array disks and can be installed in the array without a re-format.  SSD devices are now partitioned with a 1MiB offset as of Unraid 6.9 Beta 25 and cannot be installed as a cache or pool device on earlier versions.

• Because of security issues with samba, the mounting of remote SMB shares with CIFS has become more complicated.  The default protocol is now SMB3 and not SMB1; the default security is now ntlmv2 and not ntlm.  UD will try to mount SMB shares with SMB3, then SMB2, and then SMB1 to try to get the mount to use the most secure protocol it supports and the ntlmv2 protocol. If you have an older server that only supports SMB v1, you need to update that server so it will support SMB v2 or v3.  SMB v1 is being phased out and will probably eventually be removed from samba.  You will not be able to mount a remote SMB share using SMBv1 if NetBIOS is disabled in Unraid.  It is recommended to disable NetBIOS on Unraid servers.