similar to: xen host system capacity utilization

This is pretty epic if true. I'm installing some Fail 2008r2 now to check. Is your hypervisor running CentOS 6 or 7? -- Sent from the Delta quadrant using Borg technology! Nux! www.nux.ro ----- Original Message ----- > From: "Dennis Jacobfeuerborn" <dennisml at conversis.de> > To: "Discussion about the virtualization on CentOS" <centos-virt at

On 09.12.2015 00:39, NightLightHosts Admin wrote: > On Tue, Dec 8, 2015 at 5:26 PM, Dennis Jacobfeuerborn > <dennisml at conversis.de> wrote: >> Hi, >> today we ran into a strange problem: When performing a regular Windows >> 2008r2 update apparently among other things the following was installed: >> "SUSE - Storage Controller - SUSE Block Driver for

Hi, today we ran into a strange problem: When performing a regular Windows 2008r2 update apparently among other things the following was installed: "SUSE - Storage Controller - SUSE Block Driver for Windows" Previously the disk drive was using the Red Hat virtio drivers which worked just fine but after the reboot after the update I just get a blue screen indicating that Windows cannot

Op 09-12-15 om 01:00 schreef Dennis Jacobfeuerborn: > On 09.12.2015 00:39, NightLightHosts Admin wrote: >> On Tue, Dec 8, 2015 at 5:26 PM, Dennis Jacobfeuerborn >> <dennisml at conversis.de> wrote: >>> Hi, >>> today we ran into a strange problem: When performing a regular Windows >>> 2008r2 update apparently among other things the following was

On Tue, Dec 8, 2015 at 5:26 PM, Dennis Jacobfeuerborn <dennisml at conversis.de> wrote: > Hi, > today we ran into a strange problem: When performing a regular Windows > 2008r2 update apparently among other things the following was installed: > "SUSE - Storage Controller - SUSE Block Driver for Windows" > > Previously the disk drive was using the Red Hat virtio

On 09.12.2015 13:47, Patrick Bervoets wrote: > > > Op 09-12-15 om 01:00 schreef Dennis Jacobfeuerborn: >> On 09.12.2015 00:39, NightLightHosts Admin wrote: >>> On Tue, Dec 8, 2015 at 5:26 PM, Dennis Jacobfeuerborn >>> <dennisml at conversis.de> wrote: >>>> Hi, >>>> today we ran into a strange problem: When performing a regular

Hi, I'm thinking about how to go about migrating our Xen VMs to KVM. Migrating the configuraton should be easy using the virsh dumpxml/define commands but what is the best way to transfer the (logical volume based) images without too much downtime for the guest system? Can rsync operate on logical volumes? If so I could potentially use "dd" to transfer an initial copy of the

Is there any way to monitor the _real_ CPU utilization for a given xen installation? I have a 4x dual-core AMD system running 10 domU''s, and I''m not sure if I''m overloading or under-utilizing the hardware. I''ve been using xentop to see how much virtual cpu each domU (and dom0) is consuming, but I''m finding it hard to figure out what the _real_

Hi all, If I want to measure the Dom0 CPU utilization, which is a more accurate way among the following 3 options? 1. Running profiling program like "sar" in domain 0. 2. Running Xentop in domain 0 3. Running Xenmon.py in domain 0 By running these 3 different program, the results have certain differences. So I am confused here which to use.Thank you in advance. Lei

Hello, I noticed that the CPU% reported by xentop appears to be too high. With dom0 idle xentop is reporting between 14-17% CPU utilization while at the same time top in dom0 is reporting 1-4% CPU utilization. I see that the TODO for xentop includes a task to make CPU% more accurate but looking at the code for xentop and libxenstat I''m not sure how to go about this. Assuming the CPU

Hi, up until now I've always deployed VMs with their storage located directly on the host system but as the number of VMs grows and the hardware becomes more powerful and can handle more virtual machines I'm concerned about a failure of the host taking down too many VMs in one go. As a result I'm now looking at moving to an infrastructure that uses shared storage instead so I can

Package: xen-utils-common Version: 3.0.3-0-2 Severity: wishlist Tags: patch Currently when hostnames are wider than 10 chars, the xentop output is messed up. Please add the following patch to support up to 20 chars, or better yet, allow the columns to auto size :) #! /bin/sh /usr/share/dpatch/dpatch-run ## xentop-name-width.dpatch by <apeeters@lashout.net> ## ## All lines beginning with

Hi, I'm wondering about the impact of using both dom0 and domU's on a server at the same time. I'm worried about the performance impact of running a Mysql server in a domU and now I'm thinking about moving the Mysql part of a LAMP setup into dom0 and running a few Apache guests as domUs. Since the Apaches will serve mostly from an NFS share they won't have much impact on

Hi, I recently did some benchmarking on a Rackspace VM and was surprised that bonnie++ showed a read throughput of almost 500MB/sec. Does anyone have an idea how they achieve these speeds in a shared environment? While you can achieve this with a RAID easily these days once you have lots of VMs accessing that array I would expect that speed to go down quite a bit. Was I just lucky that I was

Hello I am working with 3 host machines each running xen with shared NFS storage. I am working on automatic load balancing if one host is over utilized and another is under utilized by measuring the utilization from xentop. I am facing a problem after migration of VM. I am setting the flags ( 1| 8| 16) in order to do live migration, persist VM on destination, undefine host from source. After

On 27.02.2018 16:45, Stephen John Smoogen wrote: > On 27 February 2018 at 06:11, Dennis Jacobfeuerborn > <dennisml at conversis.de> wrote: >> Hi, >> I'm currently trying to mirror a couple of yum repositories and the only >> tool that seems to be available for this is reposync. >> Unfortunately reposync for some inexplicable reason seems to use the yum

Op 09-12-15 om 14:23 schreef Dennis Jacobfeuerborn: > Yes, this is a CentOS 6 Host using regular libvirt based virtualization. The Suse driver is apparently an optional update that gets delivered using the regular Microsoft update mechanism. It's hard to believe that they didn't catch a completely broken driver during QA so my hypothesis is that maybe the new Virtio driver is

Sorry for posting again, but because the subject.Hi All, I have 5 servers each: Intel Quad Core i7 2.4Gig (8 processors)2 *1TB HDD2*1Gig NIC12G RAM I installed XCP 0.5 on each and all are joining a resource pool.Then I installed 2 Centos 5.5 VM on each XCP host and I used the following command to specify the number of vCPUs for each VM: xe vm-param-set uuid=$VM_UUID VCPUs-max=4xe vm-param-set

I know df does not report the correct size for btrfs raid systems. Is there any other way to find out the total capacity of a btrfs file system? Or at least the raid level for data / metadata? My test system is Ubuntu 10.10 alpha with btrfs 0.19 and a 2.6.35 kernel (don''t know which rc). # uname -a Linux ubuntu 2.6.35-12-generic #17-Ubuntu SMP Mon Jul 26 18:48:06 UTC 2010 x86_64

  Hi, How i can calculate cpu utilization percentage for host using python libvirt API. Which function can i use for calulating cpu percentage of host and Virtual Machines? 1)Host cpu utilization  ====================  I tried getCPUStats() function,it gives the following output.Is there any way to calculate cpu percentage from the following output?  Is there any other function availabe for