Ntp Frequency Error Ppm Exceeds Tolerance Vmware
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NSXVirtual SAN vCenterFusionWorkstationvExpertVMware {code} CloudCredSubmit a Link Home > VMTN > Virtual Machine, Guest OS and VM Tools > Discussions Please enter a title. You can not post a blank message. Please type your message and try again. ntp drift file 4 Replies Latest reply: Jan 6, 2008 3:01 PM by ntpd GBromage Time Sync for Linux VM's? hutchingsp Jan 2, 2008 10:28 AM Just getting my head
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around time sync on VMware ESX (3.02).I have my Windows VM's set to the Windows defaults (i.e. get time from a DC which are physical https://access.redhat.com/solutions/35640 machines) and time sync is currently disabled in VMTools.I've configured the physical ESX host as per http://kb.vmware.com/selfservice/viewContent.do?language=en_US&externalId=1339 and it's getting the time via NTP.I have a single Linux VM running on it. What's the best way to have it set its time?I currently have it set to sync with external NTP servers, https://communities.vmware.com/thread/119480?start=0&tstart=0 and the time seems accurate, however I noticed in /var/log/messages lots of: ntpd[1923]: frequency error 512 PPM exceeds tolerance 500 PPMmessages, which suggests ntpd may be working harder than it has to?What's the simplest effective solution please? This is likely to be our only Linux VM. 1337Views Tags: none (add) This content has been marked as final. Show 4 replies 1. Re: Time Sync for Linux VM's? Texiwill Jan 3, 2008 6:59 AM (in response to hutchingsp) Hello,Instead of using NTPD use NTPDATE every 5 minutes within cron. Your sync server should be an external source not the ESX server.Best regards,Edward L. HaletkyVMware Communities User Moderator====Author of the book 'VMWare ESX Server in the Enterprise: Planning and Securing Virtualization Servers', Copyright 2008 Pearson Education. Available on Rough Cuts at http://safari.informit.com/9780132302074 Like Show 0 Likes (0) Actions 2. Re: Time Sync for Linux VM's? hutchingsp Jan 3, 2008 12:39 PM (in response to Texiwill)
Search Tutorials/Articles Search HCL Search Reviews Search ISOs Go to Page... LinuxQuestions.org > Forums > Linux Forums > Linux - Software ntpd frequency error User Name Remember Me? Password Linux - Software This forum is for Software issues. Having http://www.linuxquestions.org/questions/linux-software-2/ntpd-frequency-error-694240/ a problem installing a new program? Want to know which application is best for the job? Post your question in this forum. Notices Welcome to LinuxQuestions.org, a friendly and active Linux Community. You are currently viewing LQ as https://www.netiq.com/support/kb/doc.php?id=7010716 a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. frequency error Join our community today! Note that registered members see fewer ads, and ContentLink is completely disabled once you log in. Are you new to LinuxQuestions.org? Visit the following links: Site Howto | Site FAQ | Sitemap | Register Now If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here. Having a problem logging in? Please visit this page to clear all frequency error ppm LQ-related cookies. Introduction to Linux - A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter. For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own. Click Here to receive this Complete Guide absolutely free. Search this Thread 01-01-2009, 07:52 AM #1 UltraSoul Member Registered: Dec 2004 Location: Japan Distribution: REDHAT9.0, Mandrake10.1 Posts: 404 Rep: ntpd frequency error Hi, I have RHEL AS4 Update4 installed on VMESX3.02. I got the following error from ntpd daemon repeatedly. Jan 1 22:01:12 RHEL4-001 ntpd[3066]: frequency error -504 PPM exceeds tolerance 500 PPM. .... I got the error in the last two weeks and occured again today. Is it related VMware. Any idea about how to get the ntpd error disappeared, Please help. Last edited by UltraSoul; 01-01-2009 at 07:53 AM. UltraSoul
Favorite Rating: NTP time synchronization issue on SUSE Linux Enterprise Server 10 Service Pack 4 running on VMwareThis document (7010716) is provided subject to the disclaimer at the end of this document. Environment SUSE Linux Enterprise Server 10 Service Pack 4 Novell Open Enterprise Server 2 (OES 2) Linux Support Pack 3 NetIQ eDirectory Situation On virtualized SUSE Linux Enterprise Server 10 Service Pack 4, time synchronization using Network Time Protocol daemon (ntpd) is not properly working reporting major clock drift: # cat /var/lib/ntp/drift/ntp.drift -500.000 and several frequency errors in the ntp log file: # cat /var/log/ntp[...]9 Jul 11:06:37 ntpd[466]: frequency error -512 PPM exceeds tolerance 500 PPM 9 Jul 11:07:43 ntpd[466]: frequency error -512 PPM exceeds tolerance 500 PPM 9 Jul 11:08:46 ntpd[466]: frequency error -512 PPM exceeds tolerance 500 PPM 9 Jul 11:09:49 ntpd[466]: frequency error -512 PPM exceeds tolerance 500 PPM[...]If on your system is running eDirectory, you could also have verified a time synchronization issue with the command "ndsrepair -T" The issue has been verified on systems running kernel version 2.6.16.60-0.97.1 on VMware. Resolution Solution:Please update to kernel 2.6.16.60-0.99.1 or later.Workaround:Disable the Time Stamp Counter using the kernel parameter "notsc". In order to do this, add "notsc" to the kernel line in the file "/boot/grub/menu.lst". An example below: kernel /boot/vmlinuz-2.6.16.60-0.97.1-default root=/dev/sda2 vga=0x314 resume=/dev/sda1 splash=silent showopts notsc Then reboot the system and verify if the issue is solved. Additional Information More information about this issue from VMWare:http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1006427 DisclaimerThis Support Knowledgebase provides a valuable tool for NetIQ/Novell/SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND. Document ID:7010716Creation D