[LU-11489] improve ha.sh to try power off/on several times

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.12.0
• Affects Version/s: Lustre 2.12.0

Epic

test

• Assignee: Elena Gryaznova
• Reporter: Elena Gryaznova

Description

Sometimes we have a BMC hangup for ~1 minute.

Patch improves ha.sh to try power off/on several times with delay $ha_power_delay default 60 sec.