Re: [libvirt-users] Oracle RAC in libvirt+KVM environment
[root@localhost /]# ls -l /dev/VM-IMAGES-BACKUP-DO-NOT-REMOVE/q_disk
lrwxrwxrwx. 1 root root 8 8月 20 17:38
/dev/VM-IMAGES-BACKUP-DO-NOT-REMOVE/q_disk -> ../dm-13
[root@localhost /]# sg_inq /dev/VM-IMAGES-BACKUP-DO-NOT-REMOVE/q_disk
standard INQUIRY:
PQual=0 Device_type=0 RMB=0 version=0x05 [SPC-3]
[AERC=0] [TrmTsk=0] NormACA=0 HiSUP=0 Resp_data_format=0
SCCS=1 ACC=0 TPGS=1 3PC=0 Protect=0 [BQue=0]
EncServ=0 MultiP=0 [MChngr=0] [ACKREQQ=0] Addr16=0
[RelAdr=0] WBus16=1 Sync=1 Linked=0 [TranDis=0] CmdQue=1
length=36 (0x24) Peripheral device type: disk
Vendor identification: MacroSAN
Product identification: LU
Product revision level: 1.0
Unit serial number: 0d9281ae-aea4-6da0-0000-02180142b300
This lun is from a vg build based on iscsi target.
[root@localhost /]# libvirtd --version
libvirtd (libvirt) 1.0.5
[root@localhost /]# qemu-kvm --version
QEMU emulator version 1.4.1, Copyright (c) 2003-2008 Fabrice Bellard
[root@localhost /]# uname -a
Linux localhost.localdomain 3.9.2-301.fc19.x86_64 #1 SMP Mon May 13
12:36:24 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
On Tue, Aug 20, 2013 at 6:16 PM, Paolo Bonzini <pbonzini(a)redhat.com> wrote:
Il 20/08/2013 11:59, Timon Wang ha scritto:
> On Tue, Aug 20, 2013 at 4:33 PM, Paolo Bonzini <pbonzini(a)redhat.com> wrote:
>> Il 20/08/2013 08:00, Timon Wang ha scritto:
>>> <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'>
>>
>> I'm not sure this will be enough, but if you want passthrough to the
>> host device you should use device='lun' here. However, you still would
>> not be able to issue SCSI reservations unless you run QEMU with the
>> CAP_SYS_RAWIO capability (using "<disk ...
rawio='yes'>").
>>
>
> After change the libvirt xml like this:
> <disk type='block' device='lun' rawio='yes'>
> <driver name='qemu' type='raw' cache='none'/>
> <source dev='/dev/VM-IMAGES-BACKUP-DO-NOT-REMOVE/q_disk'/>
> <target dev='sda' bus='scsi'/>
> <shareable/>
> <address type='drive' controller='0' bus='0'
target='0' unit='0'/>
> </disk>
> I got these errors:
> char device redirected to /dev/pts/1 (label charserial0)
> qemu-system-x86_64: -device
>
scsi-block,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0:
> scsi-block: INQUIRY failed
> qemu-system-x86_64: -device
>
scsi-block,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0:
> Device 'scsi-block' could not be initialized
Can you do
# ls -l /dev/VM-IMAGES-BACKUP-DO-NOT-REMOVE/q_disk
# sg_inq /dev/VM-IMAGES-BACKUP-DO-NOT-REMOVE/q_disk
?
Paolo
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