question: startup from a 2.6-layout that has legacy storage ids correctly generates new storage ids . test case for hdfs-7575 . concode_field_sep PlaceHolder placeHolder concode_field_sep void runLayoutUpgradeTest concode_elem_sep void testUpgradeFrom26PreservesStorageIDs concode_elem_sep void initStorageDirs concode_elem_sep void upgradeAndVerify concode_elem_sep void testUpgradeFrom22FixesStorageIDs
target: void function ( ) { runLayoutUpgradeTest ( GenericTestUtils . getMethodName ( ) , null ) ; }