[LU-9435] DNE2 - object placement QoS policy

• Type: Improvement
• Resolution: Won't Fix
• Priority: Minor
• Labels: dne3
• Assignee: Lai Siyao
• Reporter: Jinshan Xiong (Inactive)

Description

In current implementation, when a file is created, the file's inode must be in the same MDT where the name entry locates. It's more desirable to allocate MDT objects with the QoS policies like what we do for OST objects.

Issue Links

• is related to: LU-10277 DNE3: allow 'lfs mkdir' to create directory on MDS which has more space
• is related to: LU-11213 DNE3: remote mkdir() in ROOT/ by default
• is related to: LU-7827 DNE3: automatically select MDT for lfs mkdir
• is related to: LU-10784 DNE3: mkdir() automatically create remote directory on MDS which has more space