Am 01.12.2012 02:21, schrieb Stan Hoeppner: > On 11/30/2012 6:08 PM, Wietse Venema wrote: >> Stan Hoeppner: >>> That said, given the ongoing clock issues that all the guest/hypervisor >>> combos have always experienced to some degree, and will forever >>> experience no matter how good the mitigation hacks, it is my opinion, >>> and Wietse's, and many others, that mail is not really a suitable >>> application for most virtual environments. I'm sure you'll now write at >> >> Um, I have pointed out failures. I do not claim that all virtualization >> environments fail to meet the requirements > > My apologies for the mis-attribution Wietse. I agree not all virtual > environments have clock problems serious enough to avoid deploying mail > servers. I stated "most", which may likely be better described today as > "many". It's still a problem with Linux on ESX though not as bad as it > once was
it is no problem with linux on ESXi "divider=10 clocksource=hpet" with current ESXi5 und HW8 but i have running since 2008 a lot of virtual machines and since 2009 two mailservers with postfix and even without "clocksource=hpet" which is bot supported in virtual hwardwre below v8 there wo NO timedrift at all, a "distribute-command.sh date" shows the same time on any machine in the list independent on which host or phsyical or even on what location it is running so if time drift is your only problem with virtualization there is no problem at all at least with recent fedora guests and RHEL6
signature.asc
Description: OpenPGP digital signature
