[LU-28] Ability for client to mount subdirectories of a Lustre filesystem

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.9.0
• Affects Version/s: Lustre 2.0.0
• Labels: patch
• Severity: 3
• Bugzilla ID: 15,267

Epic

metadata mount

• Assignee: Wang Shilong (Inactive)
• Reporter: Lai Siyao

Description

In kicking around some ideas for the use of Lustre as a replacement for NFS user directories (home and application areas), the thought of being able to export/mount a subdirectory of a Lustre LOV came up.

Issue Links

• has to be finished together with: LUDOC-319 Add subdirectory mount feature to manual
• is related to: LU-14490 extra getattr RPC if striped directory as subdirectory mount
• is related to: LU-7846 Impose subdirectory mount via nodemap
• is related to: LU-5989 add subdirectory mounting support for lustre
• is related to: LU-8585 All Lustre test suites should pass with subdirectory mount