similar to: domUs Clock synchronisation

Hello, On a xenserver with several (39) domUs, we experience problems with the system clock of the domUs. The clock seems to drift away several seconds up to two minutes from the dom0 clock. We do have set independent_wallclock=0. According to the docs (i.e. http://wiki.xensource.com/xenwiki/InstallationNotes) that way domUs should use the dom0 clock, but apparently that''s not the case.

Hello to all, I''ve noticed a value of 10000000 in /proc/sys/xen/permitted_clock_jitter. I''m assuming thats only checked if independent_wallclock has a value greater than 0. Does anyone know what unit the 10000000 represents? Thanks in advance Tim _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com

I have numerous problems with my para- and hardware- virtualizated guests. Clock in guests drifts up to many days. Sometimes it happens after xendomains service saves and restores state on reboot, sometimes not, sometimes it happens when I am sleeping :). I use latest fedora 8 with latest updates (I have had problem since fedora 6 ...) My proc settings: /proc/sys/xen/permitted_clock_jitter is

This must be documented somewhare but I checked the Xen 3.0 manual and the word "clock" doesn''t even exist in it. I checked the FAQ as well. I am running Xen 3.0.1 and an AMD64 CPU. I found that DOMUs time clock drifts ahead. I installed ntpdate and it reports to change the time but it does not. David _______________________________________________ Xen-users mailing list

The time appears to be perfect inside dom0, however all the domU''s tend to have a slightly faster date which gets further out of sync every day. I''m currently using Xen 3.0.3 with Gentoo Linux, under 3.0.2 I had no problems with domU clocks. Are there any known issues which could cause this? I''d strongly prefer not to run ntpd in every domU, having all domU clocks in

Package: xen Severity: important Version: 4.0.1-1 The Xen documentation and Xen Debian wiki describes using independent_wallclock to sync domU clocks against the dom0 clock http://docs.vmd.citrix.com/XenServer/4.0.1/guest/ch04s06.html http://wiki.debian.org/Xen#Possible_problems_and_bugs-1 This sysctl appears to have gone away with squeeze, but the documentation is not updated Time drift is

Hi all, finally I have managed to upgrade to Xen 4.0 (actually it reports Xen 4.1-unstable) and Debian''s Linux kernel 2.6.32-4-xen-amd64. Now I am wondering what happend to independent_wallclock. There is no more /sys/xen and sysctl complains error: "xen.independent_wallclock" is an unknown key Does anybody know more about this? Thanks + best regards, Stephan

Hi all, finally I have managed to upgrade to Xen 4.0 (actually it reports Xen 4.1-unstable) and Debian''s Linux kernel 2.6.32-4-xen-amd64. Now I am wondering what happend to independent_wallclock. There is no more /sys/xen and sysctl complains error: "xen.independent_wallclock" is an unknown key Does anybody know more about this? Thanks + best regards, Stephan

Hello, I know, often asked, often discussed .. No recommendation from Citrix. What is the better solution? 1) use ntp in the XEN host and synchronize the guests with the clock running on the control domain (independent_wallclock=0, what the default is) 2) or use ntp in host and guest (and independent_wallclock=1) I ask, because the XEN host (bare metal) has a more stable clock and if the ntp

Hi list! I tried to install Xen 4 in a HP Proliant ML350 G4p, but it seems not compatible, is there another way to run Xen 4 in this server ? I couldn''t find any information on Hp''s site neither Intel''s site ... Thanks ! -- @ntonio _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com

> Hi All, > > My PXE configurations works fine for a bios PXE (the server in legacy > mode) but hangs in an EUFI mode. Look like it can transfer the bootx64.efi > but not the next one ldlinux.e64 > > > Any ideas? > > Thanks > Latest updates (including firmware) for the HP ML350 Gen9 were released on 2014DEC19 (v1.21); I would suggest double-checking

Just putting this out there to see if anyone else has seen any issues. May cross-post to asterisk-dev if it's indeed a bug (and not my own stupidity). I've got a Digium TE220 (2xT1 interface w/Echo canceller) that in two separate Nehalem-based (Xeon E5520 "Gainestown") boxes (HP ProLiant ML350 G6; HP Z800 Workstation) has caused numerous kernel panics. This is only

We bought a Compaq ML350 G5. When trying to install Centos, I got the message: No disk installed. and centos suggest me a list of drivers, but none of them seems to work. Has anybody tried this? Any help would be appreciated. carlos -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hello I do have problem using Linux with an external HP tape drive. The server platform is also an HP Server; the server is an HP ML350 G4, and the Tape drive is a HP Storage Works Ultrium 448 - 1U Rack-mountable. HP Ultrium documentation says two drivers should be automatically up, sym53c8xx for LSI SCSI interface "st" for tape and /proc/scsi/scsi should contain information about

hi guys, after installing centos on my ml350 i found 2 choices on the grub options. CENTOS-4 i386 (2.6.9-22.ELsmp) CENTOS-4 i386-up (2.6.9-22.EL) what choice will i choose ? --------------------------------- Yahoo! Autos. Looking for a sweet ride? Get pricing, reviews, & more on new and used cars. -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi. My domU date is about 75 seconds (and climbing?) behind domU. Tue Feb 21 23:11:31 UTC 2006 - dom0 Tue Feb 21 23:10:16 UTC 2006 - domu Tue Feb 21 18:10:17 EST 2006 - domu domUs'' /proc/sys/xen/independent_wallclock was 0 Set that to 1: echo 1 > /proc/sys/xen/independent_wallclock Still out by about 75 seconds: Tue Feb 21 23:14:32 UTC 2006 - dom0 Tue Feb 21 23:13:17 UTC 2006 -

Hello. On kernel from linux-image-2.6.18-6-xen-686, there is /proc/sys/xen/independent_wallclock sysctl that may be used to decoupte domU clock from domO clock. This is needed to run ntp in domU. On kernel from linux-image-2.6.26-1-xen-686, there is no such ioctl. Is that a bug or a feature? Is it possible to decoupte domU clock from domO clock when domU is running on

If independent_wallclock is set to 0, then that means running ''date'' in the domU should provide exactly the same answer as running ''date'' on dom0, right? But this isn''t happening for us. The domU''s are all running minutes behind the dom0 - in one case 16 minutes behind! dom0$ date Tue Jun 27 14:23:01 BST 2006 domU-a$ date Tue Jun 27

Hi all, can anybody please explain me what changes if i set independent_wallclock to 1 in dom0. I know that setting it to 1 in domU means that the domU will have his clock running independently from dom0 but I don''t understand what does it means setting it to 1 in dom0. Regards -- Dario Fiumicello _______________________________________________ Xen-users mailing list

Hi to all, I am in the process of setup a new asterisk server, I think in the HP Proliant ML350 G6 Server (aprox. 100 SIP Users), and Sangoma A102DE Card. The specs of the Proliant (HP PART 487932-001) about PCI are the next. 1 ( 1 ) x PCI Express 2.0 x16 ( x8 mode ) , 1 ( 1 ) x PCI Express 2.0 x8 ( x8 mode ) , 4 ( 3 ) x PCI Express 2.0 x8 ( x4 mode ) The question is, if