host issue performance

[Roshan]

Hi Erman,

we noticed application hangs when connecting to DB on VM hosted on host 2. Noticed IO was very high 15-20%.

When i moved the VM to host1, application runs faster. IO is very low <1%. What could be the issue?

Thanks,
ROshan

[ErmanArslansOracleBlog]

You need to check the DB instance running on Node 2 and the OS itself of Node 2..
Some app/process may be doing excessive I/O.. Some background service on OS may also be the cause.
The investigation should start from the DB instance Node 2, then continue with the OS and then at the last resort, you need to check the VM of Node2 itself... Action plan can be decided according to the findings..