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[Doc] ceph-common package requirement on KVM hosts, to get the physical size of the snapshots for the volumes on ceph primary storage #622

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[Doc] ceph-common package requirement on KVM hosts, to get the physical size of the snapshots for the volumes on ceph primary storage #622

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[Doc] ceph-common package requirement on KVM hosts, to get the physic…
sureshanaparti Jan 30, 2026
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Update source/installguide/hypervisor/kvm.rst
sureshanaparti Jan 30, 2026
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3 changes: 3 additions & 0 deletions source/installguide/hypervisor/kvm.rst
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Expand Up @@ -1644,6 +1644,9 @@ In order to be able to perform Volume Snapshots on CentOS 6.x (greater than 6.4)
replace your version of qemu-img with one which has been patched to include the '-s'
switch.

CloudStack uses rbd cmd to get the physical size of the snapshots for the volumes on ceph
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@DaanHoogland DaanHoogland Feb 11, 2026

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CloudStack uses rbd cmd to get the physical size of the snapshots for the volumes on ceph
CloudStack uses the rbd command to get the physical size of the snapshots for the volumes on ceph

primary storage. This requires ceph-common package to be installed on the KVM hosts. If it
is not installed, the allocated size is used for the physical size of the snapshots.
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@DaanHoogland DaanHoogland Feb 11, 2026

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is not installed, the allocated size is used for the physical size of the snapshots.
is not installed, the allocated size is used as the physical size of the snapshots.


Live Migration
^^^^^^^^^^^^^^
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