[LU-15625] set_param -P must not be used for root squash

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0, Lustre 2.15.2
• Labels: sec
• Severity: 3
• Assignee: Sebastien Buisson
• Reporter: Sebastien Buisson

Description

Only lctl conf_param must be used to set root squash parameters. If lctl set_param -P is used, the value is set only on server side permanently, and any other value set via conf_param is ignored. Plus this value is not forwarded to client side.