[CentOS-virt] domU doesn't see all memory

2013-01-02 Thread sg
Hi, I'm running CentOS 6.2 x86_64 as xen guest on a CentOS 5.7 dom0. The host is running 2.6.18-274.7.1.el5xen, the guest 2.6.32-220.2.1.el6.x86_64. Memory for domU is set to 1024 MB and xm list shows these 1024 MB. But free -m on the guest system shows only 652 MB. When I set up a CentOS 5.x

[CentOS-virt] Time

2013-01-02 Thread Robert Dinse
Friday, I moved our servers to a new co-lo facility and ran into an interesting problem with virtual machines. I did an orderly shutdown of the CentOS 6.3 host, and it in turn suspends all the guests. It took about an hour and a half to move and fire up the host. The guests,

Re: [CentOS-virt] Time

2013-01-02 Thread Dmitry E. Mikhailov
On Wed, 2013-01-02 at 00:53 -0800, Robert Dinse wrote: Friday, I moved our servers to a new co-lo facility and ran into an interesting problem with virtual machines. I did an orderly shutdown of the CentOS 6.3 host, and it in turn suspends all the guests. It took about an hour and a

Re: [CentOS-virt] domU doesn't see all memory

2013-01-02 Thread Nico Kadel-Garcia
On Wed, Jan 2, 2013 at 3:29 AM, s...@cyon.ch wrote: Hi, I'm running CentOS 6.2 x86_64 as xen guest on a CentOS 5.7 dom0. The host is running 2.6.18-274.7.1.el5xen, the guest 2.6.32-220.2.1.el6.x86_64. Memory for domU is set to 1024 MB and xm list shows these 1024 MB. But free -m on the

Re: [CentOS-virt] Time

2013-01-02 Thread Nico Kadel-Garcia
On Wed, Jan 2, 2013 at 3:53 AM, Robert Dinse nan...@eskimo.com wrote: Friday, I moved our servers to a new co-lo facility and ran into an interesting problem with virtual machines. I did an orderly shutdown of the CentOS 6.3 host, and it in turn suspends all the guests. It took

Re: [CentOS-virt] Time

2013-01-02 Thread James B. Byrne
On Wed, January 2, 2013 03:53, Robert Dinse wrote: Friday, I moved our servers to a new co-lo facility and ran into an interesting problem with virtual machines. I did an orderly shutdown of the CentOS 6.3 host, and it in turn suspends all the guests. It took about an hour and a

Re: [CentOS-virt] Time

2013-01-02 Thread SilverTip257
On Wed, Jan 2, 2013 at 9:41 AM, James B. Byrne byrn...@harte-lyne.cawrote: I ran into this situation several times whilst testing KVM and the lessons I learned from the experiences can be summarized as: 1. Never allow the kvm hypervisior to handle guests during a host shutdown. Use 'virsh

Re: [CentOS-virt] Time

2013-01-02 Thread Robert Dinse
I thank everyone for their input. I prefer to have the guests suspend rather than shutdown because many of my customers start things up manually and get annoyed when they come back to find them not running. Most of the time it is for a simple reboot of the host to make a new kernel or some

Re: [CentOS-virt] Time

2013-01-02 Thread James B. Byrne
On Wed, January 2, 2013 12:51, SilverTip257 wrote: On Wed, Jan 2, 2013 at 9:41 AM, James B. Byrne byrn...@harte-lyne.cawrote: I ran into this situation several times whilst testing KVM and the lessons I learned from the experiences can be summarized as: 1. Never allow the kvm hypervisior