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Xen 3.0.3 with VMXXen 3.0.3 with VMXPresented by psboy(Dec 7th,2006)Presented by psboy(Dec 7th,2006)
- Introduction to Xen 3.0.3 with VMX- Install/Build Domain 0 (Privileged D
omain)- Install Domain U (Unprivileged Doma
in)- Operate Xen Virtual Machine / Xen V
MX Server- Q & A
- Introduction to Xen 3.0.3 with VMX- Install/Build Domain 0 (Privileged D
omain)- Install Domain U (Unprivileged Doma
in)- Operate Xen Virtual Machine / Xen V
MX Server- Q & A
SchemeSchemeSchemeScheme
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Introduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMX
Xen is an open-source hypervisor that enables increased server utilization and server consolidation by enabling multiple operating system images to simultaneously run on a single physical server. Xen provides resource guarantees to virtual servers to ensure that application layer SLAs are met, including CPU, memory and I/O guarantees.
Xen is the industry’s fastest and most secure infrastructure virtualization software technology, and has been endorsed and adopted by over 20 of the industry’s major vendors, including AMD, Dell, Egenera, Hewlett-Packard, IBM, Intel, Mellanox Technologies, Network Appliance, Novell, Red Hat, Sun Microsystems, TopSpin, Unisys and Voltaire.
Xen is an open-source hypervisor that enables increased server utilization and server consolidation by enabling multiple operating system images to simultaneously run on a single physical server. Xen provides resource guarantees to virtual servers to ensure that application layer SLAs are met, including CPU, memory and I/O guarantees.
Xen is the industry’s fastest and most secure infrastructure virtualization software technology, and has been endorsed and adopted by over 20 of the industry’s major vendors, including AMD, Dell, Egenera, Hewlett-Packard, IBM, Intel, Mellanox Technologies, Network Appliance, Novell, Red Hat, Sun Microsystems, TopSpin, Unisys and Voltaire.
What is Xen?What is Xen?What is Xen?What is Xen?
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Introduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMX
Xen is licensed under the GNU General Public License (GPL2), and is available free for download. It is offered by XenSource and other vendors as a supported enterprise software product.
Xen was created in 2003 at the University of Cambridge Computer Laboratory in what’s known as the Xen Hypervisor project led by Ian Pratt. Additional team members include Keir Fraser, Steven Hand, and Christian Limpach. This same team founded XenSource with experienced Silicon Valley technology entrepreneurs Nick Gault and Simon Crosby.
Xen is licensed under the GNU General Public License (GPL2), and is available free for download. It is offered by XenSource and other vendors as a supported enterprise software product.
Xen was created in 2003 at the University of Cambridge Computer Laboratory in what’s known as the Xen Hypervisor project led by Ian Pratt. Additional team members include Keir Fraser, Steven Hand, and Christian Limpach. This same team founded XenSource with experienced Silicon Valley technology entrepreneurs Nick Gault and Simon Crosby.
Who create Xen?Who create Xen?Who create Xen?Who create Xen?
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Introduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMX
What are the business benefits of What are the business benefits of adopting Xen?adopting Xen?What are the business benefits of What are the business benefits of adopting Xen?adopting Xen? Increased server utilization: Data centers can achieve dramatic
improvements in server utilization and enable server consolidation, reducing wasted capital costs and personnel management expenses.
Reduced burden on IT: By enabling server consolidation, Xen reduces the cost, complexity, and personnel time required for data center server management. XenSource’s virtualization infrastructure software solutions provide both Xen based virtualization for servers and management, and control and automation tools that allow IT organizations to “operationalize” virtualization in a seamless, low cost fashion.
Lowest TCO: Today virtualization has yet to enter the heart of the data center. There are two reasons: poor performance of proprietary hypervisors and their tremendous cost. Xen is the best performing hypervisor, and it’s free. That radically changes the economics of the adoption of virtualization.
Increased server utilization: Data centers can achieve dramatic improvements in server utilization and enable server consolidation, reducing wasted capital costs and personnel management expenses.
Reduced burden on IT: By enabling server consolidation, Xen reduces the cost, complexity, and personnel time required for data center server management. XenSource’s virtualization infrastructure software solutions provide both Xen based virtualization for servers and management, and control and automation tools that allow IT organizations to “operationalize” virtualization in a seamless, low cost fashion.
Lowest TCO: Today virtualization has yet to enter the heart of the data center. There are two reasons: poor performance of proprietary hypervisors and their tremendous cost. Xen is the best performing hypervisor, and it’s free. That radically changes the economics of the adoption of virtualization.
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Introduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMX
Xen 3.0 features Xen 3.0 features Xen 3.0 features Xen 3.0 features Support for up to 32-way SMP guest Intel® VT-x and AMD Pacifica hardware virtualization support PAE support for 32 bit servers with over 4 GB memory x86/64 support for both AMD64 and EM64T
Support for up to 32-way SMP guest Intel® VT-x and AMD Pacifica hardware virtualization support PAE support for 32 bit servers with over 4 GB memory x86/64 support for both AMD64 and EM64T
Xen 3.0.3 features Xen 3.0.3 features Xen 3.0.3 features Xen 3.0.3 features New easy-to-use CPU scheduler including weights, caps and
automatic load balancing Much enhanced support for unmodified ('hvm') guests including
windows and legacy linux systems Support for sparse and copy-on-write disks High performance networking using segmentation off-load
New easy-to-use CPU scheduler including weights, caps and automatic load balancing
Much enhanced support for unmodified ('hvm') guests including windows and legacy linux systems
Support for sparse and copy-on-write disks High performance networking using segmentation off-load
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Xen NetworkingXen NetworkingXen NetworkingXen NetworkingIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMX
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Introduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMX
Logical network cards connected Logical network cards connected between dom0 and dom1between dom0 and dom1Logical network cards connected Logical network cards connected between dom0 and dom1between dom0 and dom1
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Illustration on network-bridge and Illustration on network-bridge and vif-bridge:vif-bridge:
Introduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMX
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Intel Virtualization Intel Virtualization TechnologyTechnology
Introduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMX
Xen 3.0 architecture Xen 3.0 architecture
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Introduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMX
VMCSVMCS
Shadow Page TableShadow Page Table
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Introduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMX
For the IA-32 architecture, a VMCS structure is created for each CPU in a HVM domain
Instructions such as CPUID, MOV from/to CR3, MOV to CR0/CR4, RDMSR, WRMSR, HLT, INVLPG, MOV from CR8, MOV DR, and MWAIT are intercepted as VM exits.
Exceptions/faults, such as page fault, are intercepted as VM exits, and virtualized exceptions/faults are injected on VM entry to guests.
External interrupts unrelated to guests are intercepted as VM exits, and virtualized interrupts are injected on VM entry to the guests.
Read shadows are created for the guest CR0, CR4, and time stamp counter (TSC). Read accesses to such registers will not cause VM exit, but will return the shadow values.
For the IA-32 architecture, a VMCS structure is created for each CPU in a HVM domain
Instructions such as CPUID, MOV from/to CR3, MOV to CR0/CR4, RDMSR, WRMSR, HLT, INVLPG, MOV from CR8, MOV DR, and MWAIT are intercepted as VM exits.
Exceptions/faults, such as page fault, are intercepted as VM exits, and virtualized exceptions/faults are injected on VM entry to guests.
External interrupts unrelated to guests are intercepted as VM exits, and virtualized interrupts are injected on VM entry to the guests.
Read shadows are created for the guest CR0, CR4, and time stamp counter (TSC). Read accesses to such registers will not cause VM exit, but will return the shadow values.
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Introduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMX
The virtual MMU module supports all page table formats that can be used by the guest OS
For IA-32
a. it supports 2-level page tables with 4 KB page size for 32-bit guests. For IA-32 Physical Address Extension (PAE)
a. it supports 2-level page tables with 4 KB page sizes for 32-bit guests.
b. it supports 3-level page tables with 4 KB and 2 MB page sizes for 32-bit PAE guests.
For Intel® EM64T
a. it supports 2-level page tables with 4 KB page size for 32-bit guests.
b. it supports 3-level page tables with 4 KB and 2 MB page sizes for 32-bit PAE guests.
c. it supports 4-level page tables with 4 KB and 2 MB page sizes for 64-bit guests.
The virtual MMU module supports all page table formats that can be used by the guest OS
For IA-32
a. it supports 2-level page tables with 4 KB page size for 32-bit guests. For IA-32 Physical Address Extension (PAE)
a. it supports 2-level page tables with 4 KB page sizes for 32-bit guests.
b. it supports 3-level page tables with 4 KB and 2 MB page sizes for 32-bit PAE guests.
For Intel® EM64T
a. it supports 2-level page tables with 4 KB page size for 32-bit guests.
b. it supports 3-level page tables with 4 KB and 2 MB page sizes for 32-bit PAE guests.
c. it supports 4-level page tables with 4 KB and 2 MB page sizes for 64-bit guests.
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Introduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMXIntroduction to Xen 3.0.3 with VMX
Device IO Virtualization The primary function of the device
model is to wait for an I/O event
from the HVM guest and dispatch it
to the appropriate device emulation
model. Once the device emulation
model completes the I/O request, it
will respond back with the result.
A shared memory between the device model and the Xen hypervisor is used for communication of I/O request and response.
Device IO Virtualization The primary function of the device
model is to wait for an I/O event
from the HVM guest and dispatch it
to the appropriate device emulation
model. Once the device emulation
model completes the I/O request, it
will respond back with the result.
A shared memory between the device model and the Xen hypervisor is used for communication of I/O request and response.
I/O Device virtualization modelI/O Device virtualization model
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Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Before install Domain 0 Unmodified operating systems are supported. Support is
provided for running Windows on VT or AMD-V hardware. Xen supports 32-bit processors with and without Physical
Address Extension (PAE), 64-bit processors, and Symmetric Multiprocessing (SMP) guest operating systems.
Enterprise Linux guest operating systems supported: Red Hat Enterprise Linux 3.5, 4.1, SUSE Linux Enterprise Server 9.2; Also Fedora Core 4, CentOS 4, SUSE Open Linux 10, Debian and others.
Current test with Xen 3.03 for example , linux kernel 2.6.16.29.
Before install Domain 0 Unmodified operating systems are supported. Support is
provided for running Windows on VT or AMD-V hardware. Xen supports 32-bit processors with and without Physical
Address Extension (PAE), 64-bit processors, and Symmetric Multiprocessing (SMP) guest operating systems.
Enterprise Linux guest operating systems supported: Red Hat Enterprise Linux 3.5, 4.1, SUSE Linux Enterprise Server 9.2; Also Fedora Core 4, CentOS 4, SUSE Open Linux 10, Debian and others.
Current test with Xen 3.03 for example , linux kernel 2.6.16.29.
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System requirement
1. Cpu need support VMX /SVM You can use command “cat /proc/cpuinfo”to
see if your cpu have vmx/svm flag
2. Chipset need support VMX
3. Bios need to enable VMX /SVM Intel VMX default is disable. AMD SVM default is enable.
4. You can try to use Xen Test CD first before test Xen HVM.
System requirement
1. Cpu need support VMX /SVM You can use command “cat /proc/cpuinfo”to
see if your cpu have vmx/svm flag
2. Chipset need support VMX
3. Bios need to enable VMX /SVM Intel VMX default is disable. AMD SVM default is enable.
4. You can try to use Xen Test CD first before test Xen HVM.
Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)
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Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)
Several ways to install Domain 0 Install from binary tarball
Quick for installation but no preferred modules contain in official release
Install from RPMs Quick for installation but no preferred modules contain in
official release
Install from source Kernel and module can customize and more flexible Dom0 kernel and hypervisor tuning is available
Several ways to install Domain 0 Install from binary tarball
Quick for installation but no preferred modules contain in official release
Install from RPMs Quick for installation but no preferred modules contain in
official release
Install from source Kernel and module can customize and more flexible Dom0 kernel and hypervisor tuning is available
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Step 0.1Download Xen 3.03 source from http://bits.xensource.
com/oss-xen/release/3.0.3-0/src.tgz/xen-3.0.3_0-src.tgz
Download linux-2.6.16.29.tar.bz2 from http://www.kernel.org
Step 0.2 Install RHEL4 AS U4 32bit.(Full install)
Recommend set your system resolution to 1024x768 for later install Domain U.
Don’t use whole disk as “/” (left some space for guest os )
Step 0.1Download Xen 3.03 source from http://bits.xensource.
com/oss-xen/release/3.0.3-0/src.tgz/xen-3.0.3_0-src.tgz
Download linux-2.6.16.29.tar.bz2 from http://www.kernel.org
Step 0.2 Install RHEL4 AS U4 32bit.(Full install)
Recommend set your system resolution to 1024x768 for later install Domain U.
Don’t use whole disk as “/” (left some space for guest os )
Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)
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Step 1Extract xen-3.0.3_0-src.tgz.
#gunzip xen-3.0.3_0-src.tgz. #tar zxvf xen-3.0.3_0-src.tar. #cd xen-3.0.3_0-src
Copy linux-2.6.16.29.tar.bz2 to xen-3.0.3_0-src directory. Don’t extract linux-2.6.16.29.tar.bz2 !!
Step 1Extract xen-3.0.3_0-src.tgz.
#gunzip xen-3.0.3_0-src.tgz. #tar zxvf xen-3.0.3_0-src.tar. #cd xen-3.0.3_0-src
Copy linux-2.6.16.29.tar.bz2 to xen-3.0.3_0-src directory. Don’t extract linux-2.6.16.29.tar.bz2 !!
Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)
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Step 2 Compile and install Xen and Dom0 kernel
Check if your system need PAE support.When system memory over 4G,you will need PAE support for high address memory. Use “XEN_TARGET_X86_PAE=y” to make parameter. #XEN_TARGET_X86_PAE=y make world install
Use the following command if you don’t need PAE support. #make world install
Step 2 Compile and install Xen and Dom0 kernel
Check if your system need PAE support.When system memory over 4G,you will need PAE support for high address memory. Use “XEN_TARGET_X86_PAE=y” to make parameter. #XEN_TARGET_X86_PAE=y make world install
Use the following command if you don’t need PAE support. #make world install
Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)
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Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)
If you want to rebuild or clean source directory before compile , use the following command. #make clean world install
If you want to customize your dom0 kernel config , use the following command. #make linux-2.6-xen-config CONFIGMODE=menuconfig #make linux-2.6-xen-build #make linux-2.6-xen-install
If you want to rebuild or clean source directory before compile , use the following command. #make clean world install
If you want to customize your dom0 kernel config , use the following command. #make linux-2.6-xen-config CONFIGMODE=menuconfig #make linux-2.6-xen-build #make linux-2.6-xen-install
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Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)
You can build dom0 and domU by KERNELS=“linux-2.6-xen0 linux-2.6-xenU” parameter. #KERNELS=“linux-2.6-xen0 linux-2.6-xenU” make world
install
To rebuild without change and clean source tree , use the following command. #make dist #make install
You can build dom0 and domU by KERNELS=“linux-2.6-xen0 linux-2.6-xenU” parameter. #KERNELS=“linux-2.6-xen0 linux-2.6-xenU” make world
install
To rebuild without change and clean source tree , use the following command. #make dist #make install
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Step 3 Make initial ram disk for domain 0 If you want to use initial ram disk , your kernel configurati
on should contain BLK_DEV_RAM=y and BLK_DEV_INITRD=y setting , and BLK_DEV_RAM can not be compile as module. #depmod 2.6.16.29-xen #mkinitrd –f –with=ata_piix –with=scsi_mod /boot/initrd-2.
6.16.29-xen 2.6.16.29-xen
-f: overwrite existing image file --with=module_name : load module in the initial ram disk
Step 3 Make initial ram disk for domain 0 If you want to use initial ram disk , your kernel configurati
on should contain BLK_DEV_RAM=y and BLK_DEV_INITRD=y setting , and BLK_DEV_RAM can not be compile as module. #depmod 2.6.16.29-xen #mkinitrd –f –with=ata_piix –with=scsi_mod /boot/initrd-2.
6.16.29-xen 2.6.16.29-xen
-f: overwrite existing image file --with=module_name : load module in the initial ram disk
Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)
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Step 4 Modify grub.confGrub config need to modify for apply compiled xen k
ernel and dom0 kernelAdd entry in grub.conf such like below:
title Xen 3.0.3 root (hd0,0) kernel /xen-3.0.3-0.gz console=vga dom0_mem=262144 module /vmlinuz-2.6.16.29-xen ro root=/dev/VolGroup00/
LogVol01 rhgb console=tty0 module /initrd-2.6.16.29-xen
Step 4 Modify grub.confGrub config need to modify for apply compiled xen k
ernel and dom0 kernelAdd entry in grub.conf such like below:
title Xen 3.0.3 root (hd0,0) kernel /xen-3.0.3-0.gz console=vga dom0_mem=262144 module /vmlinuz-2.6.16.29-xen ro root=/dev/VolGroup00/
LogVol01 rhgb console=tty0 module /initrd-2.6.16.29-xen
Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)
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Step 5 Disable tls library #mv /lib/tls /lib/tls.disabled
Step 6 Reboot system and choose Xen 3.03 from grub boot menu
Step 7 Check your Domain 0 Xend service is running#chkconfig xend on#service xend start
Step 5 Disable tls library #mv /lib/tls /lib/tls.disabled
Step 6 Reboot system and choose Xen 3.03 from grub boot menu
Step 7 Check your Domain 0 Xend service is running#chkconfig xend on#service xend start
Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)Install Domain 0 (Privileged Domain)
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Before install Domain UCheck your hardware (bios) support VMX
#xm info|grep xen_cap
xen_caps : xen-3.0-x86-32p hvm-3.0-x86-32 hvm-3.0-x86_32p #xm dmesg|grep –i vmxon
(XEN) VMXON is done
Each time you start a guest domain , Xen will random select a Mac 00:16:3E:XX:XX:XX if you didn’t set Mac in your guest domain config file.
Before install Domain UCheck your hardware (bios) support VMX
#xm info|grep xen_cap
xen_caps : xen-3.0-x86-32p hvm-3.0-x86-32 hvm-3.0-x86_32p #xm dmesg|grep –i vmxon
(XEN) VMXON is done
Each time you start a guest domain , Xen will random select a Mac 00:16:3E:XX:XX:XX if you didn’t set Mac in your guest domain config file.
Install Domain U (Unprivileged Domain)Install Domain U (Unprivileged Domain)Install Domain U (Unprivileged Domain)Install Domain U (Unprivileged Domain)
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Install Domain U (Unprivileged Domain)Install Domain U (Unprivileged Domain)Install Domain U (Unprivileged Domain)Install Domain U (Unprivileged Domain)
Install windows based guest OS
(Install windows2003 RC2 as example)
Step 1 Create lvm partition for guest OS #lvcreate –L 10000 –n w2k3 VolGroup00
Step 2 Use xmexample.hvm as sample and modify it. #cp /etc/xen/xmexample.hvm /etc/xen/w2k3.hvm
Modify below entries in w2k3.hvm memory = 512 name = w2k3 disk = [‘phy:/dev/VolGroup00/w2k3,hda,w’ ,‘phy:/dev/hdb,hdb:cdrom,r’] cdrom = ‘/dev/hdb’ boot= ‘d’ sdl=1
Install windows based guest OS
(Install windows2003 RC2 as example)
Step 1 Create lvm partition for guest OS #lvcreate –L 10000 –n w2k3 VolGroup00
Step 2 Use xmexample.hvm as sample and modify it. #cp /etc/xen/xmexample.hvm /etc/xen/w2k3.hvm
Modify below entries in w2k3.hvm memory = 512 name = w2k3 disk = [‘phy:/dev/VolGroup00/w2k3,hda,w’ ,‘phy:/dev/hdb,hdb:cdrom,r’] cdrom = ‘/dev/hdb’ boot= ‘d’ sdl=1
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Install Domain U (Unprivileged Domain)Install Domain U (Unprivileged Domain)Install Domain U (Unprivileged Domain)Install Domain U (Unprivileged Domain)
Step 3 Put windows 2003 RC2 cd into cdrom If /dev/hdb does not exist,use command “mknod /dev/hdb b 3 64” to
create /dev/hdb device node.
Step 4 Use xm command power on guest os #xm create /etc/xen/w2k3.hvm
Step 5 Follow the popup window screen and continue install guest os Press any key when boot from windows 2003 cdrom. After first time install complete and reboot , change boot = ‘d’ to boot = ‘c’.
You can use iso file emulate cdrom
Step 3 Put windows 2003 RC2 cd into cdrom If /dev/hdb does not exist,use command “mknod /dev/hdb b 3 64” to
create /dev/hdb device node.
Step 4 Use xm command power on guest os #xm create /etc/xen/w2k3.hvm
Step 5 Follow the popup window screen and continue install guest os Press any key when boot from windows 2003 cdrom. After first time install complete and reboot , change boot = ‘d’ to boot = ‘c’.
You can use iso file emulate cdrom
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Install Domain U (Unprivileged Domain)Install Domain U (Unprivileged Domain)Install Domain U (Unprivileged Domain)Install Domain U (Unprivileged Domain)
Install linux based guest OS
(Install sles10 as example)
Step 1 Create lvm partition for guest OS #lvcreate –L 10000 –n sl10 VolGroup00
Step 2 Use xmexample.hvm as sample and modify it. #cp /etc/xen/xmexample.hvm /etc/xen/sl10.hvm
Modify below entries in sl10.hvm memory = 512 name = sl10 disk = [‘phy:/dev/VolGroup00/sl10,hda,w’ ,‘phy:/dev/hdb,hdb:cdrom,r’] cdrom = ‘/dev/hdb’ boot= ‘d’ vnc=1 vncviewer=1
Install linux based guest OS
(Install sles10 as example)
Step 1 Create lvm partition for guest OS #lvcreate –L 10000 –n sl10 VolGroup00
Step 2 Use xmexample.hvm as sample and modify it. #cp /etc/xen/xmexample.hvm /etc/xen/sl10.hvm
Modify below entries in sl10.hvm memory = 512 name = sl10 disk = [‘phy:/dev/VolGroup00/sl10,hda,w’ ,‘phy:/dev/hdb,hdb:cdrom,r’] cdrom = ‘/dev/hdb’ boot= ‘d’ vnc=1 vncviewer=1
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Install Domain U (Unprivileged Domain)Install Domain U (Unprivileged Domain)Install Domain U (Unprivileged Domain)Install Domain U (Unprivileged Domain)
If you have multiple nic devices , you need to modify xend-config.sxp , sl10.hvm , script/mynetwork-script .
Modify sl10.hvm vif= [‘type=ioemu , bridge=xenbr0’,’type=ioemu , bridg
e=xenbr1’]
Add mynetwork-script to /etc/xen/script#!/bin/sh mynetwork-script
dir=$(dirname “$0”)
“$dir/network-bridge” “$@” vifnum=0 netdev=eth0
“$dir/network-bridge” “$@” vifnum=1 netdev=eth1
Modify xend-config.sxp (search network-script)(network-script mynetwork-script)
If you have multiple nic devices , you need to modify xend-config.sxp , sl10.hvm , script/mynetwork-script .
Modify sl10.hvm vif= [‘type=ioemu , bridge=xenbr0’,’type=ioemu , bridg
e=xenbr1’]
Add mynetwork-script to /etc/xen/script#!/bin/sh mynetwork-script
dir=$(dirname “$0”)
“$dir/network-bridge” “$@” vifnum=0 netdev=eth0
“$dir/network-bridge” “$@” vifnum=1 netdev=eth1
Modify xend-config.sxp (search network-script)(network-script mynetwork-script)
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Step 3 Put SLES10 cd into cdrom If /dev/hdb does not exist,use command “mknod /dev/hdb b 3 64” to
create /dev/hdb device node.
Step 4 Use xm command power on guest os #xm create /etc/xen/sl10.hvm
Step 5 Follow the popup window screen and continue install guest os Type linux when boot from SLES10 cdrom. After first time install complete and reboot , change boot = ‘d’ to boot = ‘c’. Suggest to adjust resolution to 800x600 , use “vga=0x314”
You can use iso file emulate cdrom
Step 3 Put SLES10 cd into cdrom If /dev/hdb does not exist,use command “mknod /dev/hdb b 3 64” to
create /dev/hdb device node.
Step 4 Use xm command power on guest os #xm create /etc/xen/sl10.hvm
Step 5 Follow the popup window screen and continue install guest os Type linux when boot from SLES10 cdrom. After first time install complete and reboot , change boot = ‘d’ to boot = ‘c’. Suggest to adjust resolution to 800x600 , use “vga=0x314”
You can use iso file emulate cdrom
Install Domain U (Unprivileged Domain)Install Domain U (Unprivileged Domain)Install Domain U (Unprivileged Domain)Install Domain U (Unprivileged Domain)
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Operate Xen Virtual Machine / Xen VMX ServerOperate Xen Virtual Machine / Xen VMX ServerOperate Xen Virtual Machine / Xen VMX ServerOperate Xen Virtual Machine / Xen VMX Server
Booting domain 0 #service xend start
Booting guest domain #xm create /etc/xen/xmexample.hvm
You need modify your guest domain config file before start it
Stop guest domain Shutdown by init 0 command in guest OS #xm destroy domain-name (Or xm shutdown domain-name)
Booting domain 0 #service xend start
Booting guest domain #xm create /etc/xen/xmexample.hvm
You need modify your guest domain config file before start it
Stop guest domain Shutdown by init 0 command in guest OS #xm destroy domain-name (Or xm shutdown domain-name)
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Operate Xen Virtual Machine / Xen VMX ServerOperate Xen Virtual Machine / Xen VMX ServerOperate Xen Virtual Machine / Xen VMX ServerOperate Xen Virtual Machine / Xen VMX Server
Booting domain 0 #service xend start
Booting guest domain #xm create /etc/xen/xmexample.hvm
You need modify your guest domain config file before start it
Stop guest domain Shutdown by init 0 command in guest OS #xm destroy domain-name
XM tool (use this tool to operate guest domain) #xm help
Booting domain 0 #service xend start
Booting guest domain #xm create /etc/xen/xmexample.hvm
You need modify your guest domain config file before start it
Stop guest domain Shutdown by init 0 command in guest OS #xm destroy domain-name
XM tool (use this tool to operate guest domain) #xm help
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Operate Xen Virtual Machine / XenEnterprise Operate Xen Virtual Machine / XenEnterprise ServerServer
Operate Xen Virtual Machine / XenEnterprise Operate Xen Virtual Machine / XenEnterprise ServerServerBasic Management Commands
# xm list which lists all domains running in rows of the following format
The meaning of each field is as follows: name
The descriptive name of the virtual machine.
domidThe number of the domain ID this virtual machine is running in.
memoryMemory size in megabytes.
vcpusThe number of virtual CPUs this domain has.
Basic Management Commands# xm list which lists all domains running in rows of the follo
wing format
The meaning of each field is as follows: name
The descriptive name of the virtual machine.
domidThe number of the domain ID this virtual machine is running in.
memoryMemory size in megabytes.
vcpusThe number of virtual CPUs this domain has.
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stateDomain state consists of 5 fields:
r
running
bblocked
ppaused
sshutdown
ccrashed
cputimeHow much CPU time (in seconds) the domain has used so far.
stateDomain state consists of 5 fields:
r
running
bblocked
ppaused
sshutdown
ccrashed
cputimeHow much CPU time (in seconds) the domain has used so far.
Operate Xen Virtual Machine / XenEnterprise Operate Xen Virtual Machine / XenEnterprise ServerServer
Operate Xen Virtual Machine / XenEnterprise Operate Xen Virtual Machine / XenEnterprise ServerServer
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Operate Xen Virtual Machine / XenEnterprise Operate Xen Virtual Machine / XenEnterprise ServerServer
Operate Xen Virtual Machine / XenEnterprise Operate Xen Virtual Machine / XenEnterprise ServerServer# xm top Monitor a host and domains in real time
# xm dmesg Read and/or clear Xend’s message buffer# xm info Get information about Xen host# xm uptime Print uptime for a domain
# xm top Monitor a host and domains in real time
# xm dmesg Read and/or clear Xend’s message buffer# xm info Get information about Xen host# xm uptime Print uptime for a domain
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Operate Xen Virtual Machine / XenEnterprise Operate Xen Virtual Machine / XenEnterprise ServerServer
Operate Xen Virtual Machine / XenEnterprise Operate Xen Virtual Machine / XenEnterprise ServerServerMore detail guest domain config file entry
vifList of MAC addresses (random addresses are assigned if not given) a
nd bridges to use for the domain's network interfaces, e.g. vif = [ 'mac=00:16:3E:00:00:11, bridge=xen-br0', 'bridge=xen-br1' ] to assign a MAC address and bridge to the first interface and assign a different bridge to the second interface, leaving xend to choose the MAC address.
diskList of block devices to export to the domain e.g. disk = [ 'phy:hda1,sda
1,r' ] exports physical device /dev/hda1 to the domain as /dev/sda1 with read-only access. Exporting a disk read-write which is currently mounted is dangerous - if you are certain you wish to do this, you can specify w as the mode.
memoryMemory size in megabytes.
extraExtra string to append to the kernel command line (if any)
More detail guest domain config file entryvif
List of MAC addresses (random addresses are assigned if not given) and bridges to use for the domain's network interfaces, e.g. vif = [ 'mac=00:16:3E:00:00:11, bridge=xen-br0', 'bridge=xen-br1' ] to assign a MAC address and bridge to the first interface and assign a different bridge to the second interface, leaving xend to choose the MAC address.
diskList of block devices to export to the domain e.g. disk = [ 'phy:hda1,sda
1,r' ] exports physical device /dev/hda1 to the domain as /dev/sda1 with read-only access. Exporting a disk read-write which is currently mounted is dangerous - if you are certain you wish to do this, you can specify w as the mode.
memoryMemory size in megabytes.
extraExtra string to append to the kernel command line (if any)
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