[LU-14058] Create tests for large number of MDTs

• Type: Improvement
• Resolution: Unresolved
• Priority: Minor
• Affects Version/s: Lustre 2.14.0
• Labels: failing_tests tests
• Assignee: Andreas Dilger
• Reporter: James Nunez (Inactive)

Description

Patch https://review.whamcloud.com/37759 "LU-12506 changelog: support large number of MDT" allows clients to mount file systems with large numbers of MDTs. We need to create a, probably conf-sanity, test(s) that creates file systems with 16 and 32 MDTs and confirms that a client can mount this file system. The basic mount is a required test. Other testing with a large number of MDTs should be listed in this ticket.

Issue Links

• is related to: LU-19887 sanity test_300ug: 12MDT failed to migrate overstriped directory
• is related to: LU-19909 sanity test_181 12MDT: mdc_enqueue_base() unable to handle kernel NULL pointer dereference at 0000000000000254
• is related to: LU-19933 sanity test_160h 12MDT: 'mds9: User cl11 still registered'
• is related to: LU-17037 Tests should run with high and sparse index numbers for OSTs and MDTs
• is related to: LU-12506 Client unable to mount filesystem with very large number of MDTs