@After
  public void tearDown() throws Exception {
    DiskStoreImpl.SET_IGNORE_PREALLOCATE = false;

    invokeInEveryVM(() -> {
      DiskStoreImpl.SET_IGNORE_PREALLOCATE = false;
    });
  }
If IOException occurs while updating an entry in an already initialized DiskRegion, then the
cache server should be stopped.

<p>
TRAC #39079: Regions with persistence remain in use after IOException have occurred
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/InitializedDiskRegionWithIoExceptionRegressionTest.java