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Type: Improvement
Resolution: Fixed
Priority: Major
Fix Version/s: Lustre 2.16.0
Affects Version/s: Lustre 2.14.0, Lustre 2.12.4
Labels:
- medium

Rank (Obsolete):
9223372036854775807
Epic Link:
EX-4481

In order to allow draining an MDT for removal from the filesystem, or to disable it temporarily, it makes sense to add an "mdt.*.no_create" parameter on the MDT similar to "obdfilter.*.no_precreate" on the OST, and a matching mount option "-o no_create". The OS_STATE_NOPRECREATE" flag should be set in obd_statfs from the MDT to let clients/MDS know that it should be skipped.

This should result in new stripes directories skipping the MDT during selection for "lfs mkdir -i -1", auto striping, etc.

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sanity.test_300l.debug_log.tmp.1721986026.log
16.76 MB
26/Jul/24 9:29 AM

is cloned by

LU-17299 DNE3: disable new regular file creation on MDTs mounted with 'no_create'

Open

is related to

LU-17300 Avoid creating new dir/file/object on newly added MDT/OST

Open

LU-17334 Client should handle dir/file/object created on newly added MDT/OST

Resolved

LU-18193 sanity/300l fails frequently on a local setup

Resolved

LU-18343 interop: sanity test_160a: FAIL: mkdir parent '/mnt/lustre/d160a.sanity/pics/2008' failed

Resolved

is related to

LU-12025 Adding OST may cause EIO - delay activation of new OSTs on existing filesystem

Resolved

LU-16024 Allow permanently removing an MDT from config

Open

LU-7668 permanently remove deactivated OSTs from configuration log

Resolved

mentioned in: Page Loading...

(3 is related to , 1 mentioned in)

Assignee:: Lai Siyao

Reporter:: Andreas Dilger

Votes:: 0 Vote for this issue

Watchers:: 10 Start watching this issue

Created:: 22/Nov/19 4:21 AM

Updated:: 18/Oct/25 3:19 AM

Resolved:: 25/Jul/24 7:19 PM

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