Timon Wang
2013-Aug-15 10:01 UTC
Re: [libvirt-users] Oracle RAC in libvirt+KVM environment
Thanks. I have read the link you provide, there is another link which tells me to pass a NPIV discovery lun as a disk, this is seen as a local direct access disk in windows. RAC and Failure Cluster both consider this pass through disk as local disk, not a share disk, and the setup process failed. Hyper-v provides a virtual Fiber Channel implementation, so I wondering if kvm has the same solution like it. On Wed, Aug 14, 2013 at 10:02 PM, Stefan Hajnoczi <stefanha@gmail.com> wrote:> On Wed, Aug 14, 2013 at 04:40:44PM +0800, Timon Wang wrote: >> I found a article about Hyper-V virtual Fiber Channel, I think this >> will make Failover Cluster work if KVM has the same feature. >> http://technet.microsoft.com/en-us/library/hh831413.aspx >> >> Hyper-V uses NPIV for virtual Fiber Channel, I have read some article >> about KVM NPIV, but how can I config it with libvirt? Any body can >> show me some example? > > A web search turns up this: > > https://docs.fedoraproject.org/en-US/Fedora/18/html/Virtualization_Administration_Guide/sect-Technical_Papers-Identifying_HBAs_in_a_Host_System-Confirming_That_IO_Traffic_is_Going_through_an_NPIV_HBA.html > > You can use this if the host has a supported Fibre Channel HBA and your > image is on a SAN LUN. > > From my limited knowledge about this, NPIV itself won't make clustering > possible. RAC or Failure Cluster probably still require specific SCSI > commands in order to work (like persistent reservations) and that's what > needs to be investigated in order to figure out a solution. > > Stefan-- Focus on: Server Vitualization, Network security,Scanner,NodeJS,JAVA,WWW Blog: http://www.nohouse.net
Paolo Bonzini
2013-Aug-19 11:10 UTC
Re: [libvirt-users] Oracle RAC in libvirt+KVM environment
Il 15/08/2013 12:01, Timon Wang ha scritto:> Thanks. > > I have read the link you provide, there is another link which tells me > to pass a NPIV discovery lun as a disk, this is seen as a local direct > access disk in windows. RAC and Failure Cluster both consider this > pass through disk as local disk, not a share disk, and the setup > process failed. > > Hyper-v provides a virtual Fiber Channel implementation, so I > wondering if kvm has the same solution like it.Can you include the XML file you are using for the domain? Paolo
Timon Wang
2013-Aug-20 06:00 UTC
Re: [libvirt-users] Oracle RAC in libvirt+KVM environment
My domain xml is like this:
<domain type='kvm'
xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>
<name>2008-2</name>
<uuid>6325d8a5-468d-42e9-b5cb-9a04f5f34e80</uuid>
<memory unit='KiB'>524288</memory>
<currentMemory unit='KiB'>524288</currentMemory>
<vcpu placement='static'>2</vcpu>
<os>
<type arch='x86_64'
machine='pc-i440fx-1.4'>hvm</type>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<clock offset='localtime'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/bin/qemu-kvm</emulator>
<disk type='file' device='floppy'>
<driver name='qemu' type='raw'
cache='none'/>
<target dev='fda' bus='fdc'/>
<readonly/>
<address type='drive' controller='0' bus='0'
target='0' unit='0'/>
</disk>
<disk type='file' device='disk'>
<driver name='qemu' type='raw'
cache='none'/>
<source file='/home/images/win2008_2_sys'/>
<target dev='hda' bus='ide'/>
<boot order='3'/>
<address type='drive' controller='0' bus='0'
target='0' unit='0'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='qemu' type='raw'/>
<source file='/home/isos/windows2008_64r2.iso'/>
<target dev='sdc' bus='ide'/>
<readonly/>
<boot order='1'/>
<address type='drive' controller='0' bus='1'
target='0' unit='0'/>
</disk>
<disk type='block' device='disk'>
<driver name='qemu' type='raw'/>
<source dev='/dev/fedora/q_disk'/>
<target dev='sda' bus='virtio'/>
<shareable/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x0a'
function='0x0'/>
</disk>
<controller type='fdc' index='0'/>
<controller type='ide' index='0'>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x01'
function='0x1'/>
</controller>
<controller type='virtio-serial' index='0'>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x06'
function='0x0'/>
</controller>
<controller type='usb' index='0'>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x01'
function='0x2'/>
</controller>
<controller type='pci' index='0'
model='pci-root'/>
<controller type='scsi' index='0'
model='virtio-scsi'>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x07'
function='0x0'/>
</controller>
<interface type='bridge'>
<mac address='52:54:00:71:20:ae'/>
<source bridge='br0'/>
<target dev='vport2'/>
<model type='rtl8139'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x03'
function='0x0'/>
</interface>
<interface type='network'>
<mac address='52:54:00:12:a0:fd'/>
<source network='default'/>
<model type='rtl8139'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x04'
function='0x0'/>
</interface>
<serial type='pty'>
<target port='0'/>
</serial>
<console type='pty'>
<target type='serial' port='0'/>
</console>
<input type='tablet' bus='usb'/>
<input type='mouse' bus='ps2'/>
<graphics type='spice' autoport='yes'
listen='0.0.0.0'>
<listen type='address' address='0.0.0.0'/>
</graphics>
<sound model='ac97'>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x05'
function='0x0'/>
</sound>
<video>
<model type='qxl' ram='65536' vram='32768'
heads='2'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x02'
function='0x0'/>
</video>
<memballoon model='virtio'>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x08'
function='0x0'/>
</memballoon>
</devices>
<qemu:commandline>
<qemu:arg value='-rtc-td-hack'/>
</qemu:commandline>
</domain>
On 8/19/13, Paolo Bonzini <pbonzini@redhat.com>
wrote:> Il 15/08/2013 12:01, Timon Wang ha scritto:
>> Thanks.
>>
>> I have read the link you provide, there is another link which tells me
>> to pass a NPIV discovery lun as a disk, this is seen as a local direct
>> access disk in windows. RAC and Failure Cluster both consider this
>> pass through disk as local disk, not a share disk, and the setup
>> process failed.
>>
>> Hyper-v provides a virtual Fiber Channel implementation, so I
>> wondering if kvm has the same solution like it.
>
> Can you include the XML file you are using for the domain?
>
> Paolo
>
>
--
Focus on: Server Vitualization, Network security,Scanner,NodeJS,JAVA,WWW
Blog: http://www.nohouse.net