We have HP blade environment.we are facing isseu like
When we are rebooting any host it's taking too much time. we are suspecting due to RDM lun's mapping and verification is taking much time.
How to fix thi sissue
what is the best way to disable ATS heartbeat on datastore.
If you're just guessing that disabling ATS heartbeating is your issue, you may first want to open an SR to get confirmation. Generally speaking, changing advanced settings like this should only be done if you have a very good and specific reason to do so.
Read this, there is a specific fix for this