HELP: storage overprovision for storage plugins

[Marcus Sorensen]

Does anyone know how to make our storage plugin allow overprovisioning
with the new storage framework? Looks like its currently hardcoded to
just NFS or VMFS.

I imagine we'd want to add a method to StoragePool, boolean
StoragePool.getOverprovision()


server/src/com/cloud/storage/StorageManagerImpl.java

        if (storagePool.getPoolType() ==
StoragePoolType.NetworkFilesystem || storagePool.getPoolType() ==
StoragePoolType.VMFS) {
            BigDecimal overProvFactor =
getStorageOverProvisioningFactor(storagePool.getDataCenterId());
            totalOverProvCapacity = overProvFactor.multiply(new
BigDecimal(storagePool.getCapacityBytes())).longValue();
            // All this is for the inaccuracy of floats for big number
multiplication.
        } else {
            totalOverProvCapacity = storagePool.getCapacityBytes();
        }