Version 7.1.1 Amazing thing. Director become file After a power failure

[DavidTurner]

As discussed here, your disks have a volatile write cache that loses (and apparently corrupts) data on a power loss:

Version 7.1.1 Corrupted translog After a power failure

No, this does not indicate a problem in Elasticsearch or elsewhere. It indicates that your disks have a volatile write cache that loses data on a power loss.