What is Distributed lock management?

Interview Questions

1. What is Distributed lock management?

Distributed lock management (DLM): Distributed lock management (DLM) enables two servers to access the same physical disk at the same time without corrupting the data. If a device is updating a particular file or piece of data, the device gets locked so that another controller can’t seize ownership and overwrite the data. NT does not currently support DLM, so disks are dedicated to one node or the other.

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