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Qsan Document – User Manual
virtual disk. It will only take up the just the right amount of space to store the data, not the
full size of the virtual disk.
Convert traditional virtual disk to QThin and vice versa.
You can enjoy the benefits of QThin right now and right this moment. Move all your existing
fat-provisioned virtual disks to thin-provisioned ones. Virtual disk clone function can be
performed on both directions - fat-to-thin and thin-to-fat, depending on your application
needs. Figure 5 shows cloning a fat virtual disk to a thin one.
Figure 5: Clone between thin virtual disk and fat one
QThin Options
The following describes the thin provisioning options.
Threshold settings and capacity policies.
These are designed to simplify the management and better monitoring the storage usage.
You can set as many as 16 policies for each RAID group. When space usage ratio grows over
the threshold set in the policy, the action will be taken and event log will be generated.