[LU-8670] sanity_115 Fixes & Improvements

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.10.0
• Affects Version/s: Lustre 2.5.1
• Severity: 3
• Assignee: WC Triage
• Reporter: Arshad Hussain

Description

sanity_115 fixes and improvements.
This addresses below points in sanity test_115.

• Do not skip the test when OST is remote.
• Fail Test if ll_ost_io thread has not started.
• Fail Test if ll_os_io post count is less then equal to ll_ost_io pre count.
• Fail Test if the count of started thread more than thread_max.