This RFC series implements a new feature which allows users to easily
reassign disks between VMs. Currently this is only possible with one of
the following manual steps:
* rename the disk image/file and do a `qm rescan`
* configure the disk manually and use the old image name, having an
image for VM A assigned to VM B
The latter can cause unexpected behavior because PVE expects that the
VMID in a disk name always corresponds to the VM it is assigned to. Thus
when a disk, original from VM A was manually configured as disk for VM B
it happens that, when deleting VM A, the disk in question will be
deleted as well because it still had the VMID of VM A in it's name.
To issue a reassign from the CLI run:
qm reassign_disk <source VMID> <target VMID> <disk key>
where <disk key> is the config key of the disk, e.g. ide0, scsi1 and so
on.
The following storage types are implemented at the moment:
* dir based ones
* directory
* NFS
* CIFS
* ZFS
* (thin) LVM
* Ceph RBD
Changes from RFC -> V1:
* support to reassign unused disks
* digest for target vm config
* reorder the checks a bit
* adding another one to check if the given key for the disk even exists
in the config.
qemu-server: Aaron Lauterer (2):
disk reassign: add API endpoint
cli: disk reassign: add reassign_disk to qm command
PVE/API2/Qemu.pm | 106 ++++++++++++++++++++++++++++++++++++++++
PVE/CLI/qm.pm | 2 +
PVE/QemuServer/Drive.pm | 4 ++
3 files changed, 112 insertions(+)
storage: Aaron Lauterer (2):
add disk reassign feature
disk reassign: add not implemented yet message to storages
PVE/Storage.pm | 10 ++++++++++
PVE/Storage/CephFSPlugin.pm | 5 +++++
PVE/Storage/DRBDPlugin.pm | 5 +++++
PVE/Storage/GlusterfsPlugin.pm | 5 +++++
PVE/Storage/ISCSIDirectPlugin.pm | 5 +++++
PVE/Storage/ISCSIPlugin.pm | 4 ++++
PVE/Storage/LVMPlugin.pm | 15 +++++++++++++++
PVE/Storage/Plugin.pm | 21 +++++++++++++++++++++
PVE/Storage/RBDPlugin.pm | 13 +++++++++++++
PVE/Storage/ZFSPlugin.pm | 5 +++++
PVE/Storage/ZFSPoolPlugin.pm | 9 +++++++++
11 files changed, 97 insertions(+)
widget-toolkit: Aaron Lauterer (1):
utils: task_desc_table: add qmreassign
src/Utils.js | 1 +
1 file changed, 1 insertion(+)
--
2.20.1
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