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Date: Tue, 18 Nov 2014 11:02:17 +0100
From: William Dauchy <william@gandi.net>
Message-ID: <20141118100217.GK17306@gandi.net>
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Subject: [Qemu-devel] hotremoving a disk qmp/hmp
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To: QEMU Developers <qemu-devel@nongnu.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>, Ian Main <imain@redhat.com>, Fam Zheng <famz@redhat.com>, Markus Armbruster <armbru@redhat.com>


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Hello,

When hotremoving a disk I'm using the QMP API with device_del command;

Previous query-block command result:

{   u'device': u'disk1',
    u'inserted': {   u'backing_file_depth': 0,
                     u'bps': 0,
                     u'bps_rd': 0,
                     u'bps_wr': 0,
                     u'detect_zeroes': u'off',
                     u'drv': u'raw',
                     u'encrypted': False,
                     u'encryption_key_missing': False,
                     u'file': u'/dev/sda',
                     u'image': {   u'actual-size': 0,
                                   u'dirty-flag': False,
                                   u'filename': u'/dev/sda',
                                   u'format': u'raw',
                                   u'virtual-size': 3221225472},
                     u'iops': 0,
                     u'iops_rd': 0,
                     u'iops_wr': 0,
                     u'ro': False},
    u'io-status': u'ok',
    u'locked': True,
    u'removable': True,
    u'tray_open': False,
    u'type': u'unknown'}

After a device_del command I have the same thing but "'locked': False"
Then I can also do `eject device=3Ddisk1` which bring me to:

{   u'device': u'disk1',
                       u'io-status': u'ok',
                       u'locked': False,
                       u'removable': True,
                       u'tray_open': False,
                       u'type': u'unknown'}

But I did not found a way to completely remove the disk1 entry in order
to be able to add it again.
To complete the operation I need to use the old HMP API and use
`drive_del` command.

Did I miss something? or is it still something missing in QMP API?

Best regards,
--=20
William

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