HP Itanium Server

[muralikrishna]

Hi

I am using HP Itanium server. Initally server date is keep on changing so that we changed CMOS battery. After that also sometimes system date is changing. Its happening for all my itanium servers. what might be the reason? Please i need urgent solution bcoz my application is totally dependent on system date.

[Keith Matthews]

Two things you could try, one easy and quick the other slower but surer.

If your machines have internet access then ensure that they connect to Network Time Protocol servers and synchronise the time as part of start up (it will also do this as an ongoing exercise).

If they don't have internet access then your need to get a suitable radio clock slaved to your local time standard (MSF in the UK, WWV in the USA, most countries will have their own). Read this clock (it will typically connect to a serial port) as part of your system start-up procedures and set the system clock accordingly.

The snag with the latter method is that such clocks are not available in the local store and you might need to do quite a bit of googling to find a vendor. Check what time standard station applies to your area first.

In both cases you need to ensure this is done before the application starts.

[Steven E. Protter]

Shalom,

Take a look at the battery situation and use ntp to maintain the time on the system.

SEP

[dirk dierickx]

you need to use ntp like mentioned before, if you rely on your internal clock to keep perfectly in sync you're dreaming. i haven't seen an accurate clock on computer equipment since ages (in fact they never were 100% accurate, but long long ago it was not that bad).

[Ganesan R]

Hi Muralikrishna,

If the clock difference is minor and that is very sensitive to your application then obviously you should go for NTP configuration.

But if the date is getting changed then it should be some hardware issue. Check the batteries and log a case with HP if needed.