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Clock accuracy of DL360 Gen8 when NTP is free-running mode

moto_xxxx
Occasional Contributor

Clock accuracy of DL360 Gen8 when NTP is free-running mode

Hello, Community

 

Could you please suggest that what is clock accuracy of DL360 gen8 when the NTP is free-running mode?

Otherwise, how can I check the accuracy? Is it described on some documentation?

 

Thanks for your help

 

 

2 REPLIES
Suman_1978
HPE Pro

Re: Clock accuracy of DL360 Gen8 when NTP is free-running mode

Hi,

 

The RTC accuracy is +/-2 seconds per day. Most HP servers have same or similar RTC accuracy.

 

Do refer to the below link for:

Crystal Considerations with Maxim Real-Time Clocks (RTCs)

http://www.maximintegrated.com/app-notes/index.mvp/id/58

 

Note: It is not expected that the server hardware clock would be considered an accurate time keeping device.  The end-user should use NTP server or synchronize with an atomic clock more frequently.

Thanks.

Suman

 

mhunter
Frequent Advisor

Re: Clock accuracy of DL360 Gen8 when NTP is free-running mode

http://www.nist.gov/pml/div688/grp40/its.cfm

This program will write to a notepad file if you are interested in seeing any errors.

Also, if you are interested in reducing the delay and use a cheap atomic clock, use a GPS with a serial output.

All HP ISS Servers conform to the NTP standards (essentially sub-second accuracy)