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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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abh1sar merged 3 commits into from
Apr 6, 2026
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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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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.
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Live Migration
^^^^^^^^^^^^^^
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