[LU-17327] Write conf-santity test case for online OST and MDT addition

• Type: Improvement
• Resolution: Unresolved
• Priority: Minor
• Affects Version/s: Lustre 2.16.0
• Severity: 3
• Assignee: Jian Yu
• Reporter: Jian Yu

Description

We need an automated test to exercise adding OSTs and MDTs online to a live filesystem that is under load.

Andreas provided this guidance:

Add a conf-sanity test to format MDTs and OSTs, mount the first half of them, start a workload (eg. "rsync -a /etc /usr/lib $DIR/$tdir"), and then mount the second half of MDTs and OSTs).

You can likely copy test_46a to test_46b and add in the rsync workload instead of waiting nicely for the second set of OSTs to be added.

Issue Links

• is related to: LU-17300 Avoid creating new dir/file/object on newly added MDT/OST
• is related to: LU-17334 Client should handle dir/file/object created on newly added MDT/OST