# Replacing directories
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Some directories can't be replaced. If you're having issues replacing the directory, that might be the case. The following directories are shared between the nodes and can't be replaced.
+  `/opt/intel` - This includes Intel MPI, Intel Parallel Studio, and related files.
+  `/opt/slurm` - This includes Slurm Workload Manager and related files. (Conditional, only if `Scheduler: slurm`.)