domu
In this post, these content are introduced:
Create and manage file-backed virtual block device (VBD) for virtual machines on xen.
Install Fedora 11 via internet as DomU on top of xen.
Manage virtual ... read more »
The is a simple introduction to paravirt_ops in Linux kernel for Xen, VMware, etc. We make this introduction from the view of code. We use the function raw_local_irq_disable() and raw_local_irq_enable() ... read more »
I have created slides from introducing Xen’s source code structure and backend and frontend drivers in Xen. Please find the PDF version here:
xen-code-disk-v2.pdf
Animation is enabled which may help to understand ... read more »
Creating file-backed virtual block device (VBD) for Xen virtual machines and installing Fedora 11 in Xen DomU via internet will be introduced.
The Dom0 platform on top of which this DomU ... read more »
Creating file-backed virtual block device (VBD) for Xen virtual machines and installing Fedora 12 in Xen DomU via internet will be introduced.
The Dom0 platform on top of which this DomU ... read more »
LVM volumes as backing for DomU’s file system is an appealing solution to Xen VBD. LVM volumes can dynamically grow/shrink and snapshot. These features make it simple and fast to ... read more »
LVM volumes as backing for DomU’s file system is an appealing solution to Xen VBD. LVM volumes can dynamically grow/shrink and snapshot. These features make it simple and fast to ... read more »
Setting up Ubuntu 10.10 DomU on top of Fedora Xen Dom0 is introduced in this post. The process of setting up Ubuntu 10.10 DomU is the same as Setting Up ... read more »
This posts list benchmark (using bonnie++) result of I/O performance of Xen LVM and loopback backed VBDs.
The configuration of machines
Dom0
VCPU: 2 (Intel(R) Xeon(R) CPU E5520 @ 2.27GHz)
Memory: 2GB
Xen and Linux ... read more »
LVM’s snapshot feature enables us to duplicate an LVM backed Xen DomU in seconds inside of the same volume group. When we want to duplicate LVM backed Xen DomU from ... read more »
How to create a LVM group from two hard disk partitions is introduced in this post.
Assume we have installed two hard disks /dev/sdb and /dev/sdc to the server, our task ... read more »
LVM’s snapshot feature enables us to duplicate an LVM backed Xen DomU in seconds rather than minutes. We no longer need to copy the entire file system image like backing ... read more »
The performance of Xen’s Dom0 is important for the overall system. The disk and network drivers are running on Dom0. I/O intensive guests’ workloads may consume lots Dom0′s CPU cycles. ... read more »
Previously, we create a configuration file for each DomU virtual machines in our cluster. Most of the content in these configuration files is the same. The differences are only the ... read more »
A script for backing up file-backed Xen DomU is introduced in this post. This script can be changed to similar platform.
In our cluster, virtual machines are stored under /lhome/xen/. Virtual ... read more »
I have done some I/O performance benchmark test of Xen DomU. For easier management, our DomU VMs are all using file-backed VBDs. Previously, our VMs are using Loopback-mounted file-backed VBDs. ... read more »
Please refer to here for the platform of this test.
I have done some simple performance test on DomU and Dom0 and compare with the performance on physical machines. These test ... read more »
Assumption:
There are VBD based Xen DomU virtual machines stored under /lhome/xen/vm-f11-sample/. There are two files under vm-f11-sample: vm0-f11.run (The configuration file) and vmdisk0 (The virtual disk).
Now we want to duplicate ... read more »