[LU-15474] facet_failover() should mount all facets concurrently

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Severity: 3
• Assignee: Andriy Skulysh
• Reporter: Andriy Skulysh

Description

A single host can hold multiple facets.
They all are needed to be mounted after reboot.
Mounting all facets for in one by one mode increases
total recovery time and leads to evictions
while using striped files.