how to troubleshoot remotely if sever crashs/ hangs/ blue screen

Question

how to troubleshoot remotely if sever crashs/ hangs/ blue screen.

Answer 1

You need an out-of-band management system. Most commercial servers have a facility for this; for example, HP servers are equipped with Systems Insight Manager. If you're working on a computer that doesn't have something like this built-in, you will need an IP KVM and a network attached PDU.

Answer 2

1. Get in car

2. Drive to data center

3. Look at server monitor screen

Answer 3

It might have helped if you'd mentioned what OS this relates to.

Since you refer to 'blue screen' I assume you mean Microsoft Windows. Unfortunately MS Windows has never been very good for remote access, nor for diagnostics/post-mortem analysis.

Any good UPS should provide remote access to power cycle the server.