mass-storage/mass-storage-full-structure-home.md

+To ease the reading of the full tree view of the new mass storage, it has been divided into three part:
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+- [Administration (ADM)](mass-storage/mass-storage-ADM)
+- [Platforms (PTF)](mass-storage/mass-storage-PTF)
+- [Research Units (URT)](mass-storage/mass-storage-URT)
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