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7e64db1597
ESE (Extent Space Efficient) volumes are thin-provisioned and therefore space is only occupied with real data. In order to make previously used space available for re-allocation again, discard support is enabled for ESE volumes allowing the DASD driver to release said space. Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com> Reviewed-by: Stefan Haberland <sth@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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