The average lifespan of a server in Vietnam is roughly five years, but the recent trend has been toward shorter lifecycles.
Constant reboots or random failures
A good server can give out if put under unusually excessive load. Such failures in isolation are often nothing to worry about. But there is a mysterious crash for no clear reason, on a server with no intensive process operating on it. Do not just reboot and pray for the best performance. It’s time to do these tasks.
- A physical check of the motherboard may be worthwhile to see if any components are damaged
- Ensure that the server is not being put under undue stress
- Pour over event logs to see if you can find any explanation for the odd behavior
- Operating a memory test and reseating the memory sticks is a good idea
- Use anti-malware software to see if an infection or intrusion may be causing the crashes
- Check the server’s disk for errors
CPU running hot
A VN server may be in trouble when it starts operating hotter. Every increase of 18º F above 68º F reduces reliability of the server by around 50%.
The high temperature itself, however may not be the real issues, but instead an underlying symptom of what is wrong. Therefore, you should check the chipset, CPU, and HDD temperatures, fans and so on.
Other causes of high temperature could include a blockage of the exhaust or airflow, clogged front intake, recent repositioning of the machine or a dirty heat sink.
Computer hanging up and services failing
“Computer is running slow” is one of the most popular help desk ticket subject lines of all time, and the cause could be almost anything. With a server though, sudden slowness is often the result of deep-seated issues that can put it at risk for failure.
For example, a process may cause a memory leak that could eat up all of your system resources, which could result in the system grinding to a halt. A simple software update may fix things in these instances, but your system may crash for other reasons. Your Linux server VN may decide to go read-only if your hard drive is acting up. Or data corruption may be causing applications to randomly fail. Over time, tiny issues will start to add up, and if regular maintenance is not enough to consistently keep your server in working order — it may be time for a replacement.
Really slow data transfer rates are a huge bottleneck and a big red flag for hard drive issues, as are a rising number of bad sectors that do not respond to read/write operations. Strange noises are also a warning sign, much like the hypothetical noisy furnace mentioned above.