[LU-13650] ldiskfs: enable metadata_csum on MDT/OST Created: 08/Jun/20  Updated: 05/Oct/20

Status: Open
Project: Lustre
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: New Feature Priority: Minor
Reporter: Andreas Dilger Assignee: WC Triage
Resolution: Unresolved Votes: 0
Labels: e2fsprogs, ldiskfs

Issue Links:
Related
is related to LU-5949 Verify e2fsck inode badness is workin... Resolved
is related to LU-11922 mkfs.lustre in 1.44.3.wc1 causes corr... Resolved
is related to LU-13446 Security hole in default e2fsck behav... Resolved
Rank (Obsolete): 9223372036854775807

 Description   

It would be useful it we could enable the metadata_csum feature on the MDT/OST, so long as this is being properly handled by e2fsck. It would be a valuable addition to the "inode badness" metric that we currently have added to e2fsck. It isn't quite as useful by itself as the block checksums used by ZFS, since ZFS also has backup copies of all metadata blocks, but in some cases metadata_csum can still be valuable to detect corruption and avoid the use of corrupted metadata.


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