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Description of problem:
For VirtIO disks, or SCSI controllers, libvirt can use  device_del or pci_del to remove the device / controller respectively. There is no way, however, to remove a single SCSI disk from a SCSI controller. Previously libvirt's SCSI remove was broken, actually removing the entire controller and we'd like to now fix that to properly remove the single drive.

I'd like to see a monitor command that supports 

  drive_del  if=scsi,$bus.$unit

And/or

  drive_del  $id


Version-Release number of selected component (if applicable):
qemu-kvm-0.12.1.2-2.9.el6.x86_64

How reproducible:
Always

Steps to Reproduce:
1.
2.
3.
  
Actual results:


Expected results:


Additional info:

There was a previous thread about this here, but it didn't resolve itself:

http://patchwork.ozlabs.org/patch/33933/

This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release.  Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release.  This request is not yet committed for
inclusion.

Based on this new discovery that 'device_del' of the guest device, also removes the drive state, we don't have an urgent need for 'drive_del'.

http://www.redhat.com/archives/libvir-list/2010-March/msg00036.html

So suggest this BZ can be pushed off to rhel-6.1

Markus, I think your -blockdev work supersedes this, right?
Wanna take this for your work?  Or should I CLOSE/WOUNTFIX or CLOSE/DUPLICATE?

Yes, it'll provide the feature.  Taking the bug.

Related: bug 581963.

Bug 654682 asks for the same feature, just for different reasons.  Since the actual work is being tracked there, close this one as duplicate.

*** This bug has been marked as a duplicate of bug 654682 ***