[libvirt-users] Oracle RAC in libvirt+KVM environment

[Timon Wang]

>From the fedora 19 host:
[root at fedora ~]# sg_inq /dev/sdc
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: fd01ece6-8540-f4c7-0000-fe170142b300

>From the fedora 19 vm:
[root at fedoravm ~]# sg_inq /dev/sdb
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: fd01ece6-8540-f4c7-0000-fe170142b300

The result from fedora 19 host and fedora 19 vm are the same. It's
that means I got a wrong windows vm scsi pass-through driver?
Or is there any tool like sg_inq in windows 2008?


On Tue, Aug 20, 2013 at 8:09 PM, Paolo Bonzini <pbonzini at redhat.com> wrote:
> Il 20/08/2013 13:43, Timon Wang ha scritto:
>> Thanks, the whole iSCSI LUN have been passed to the VM.
>>
>> But I test it with scsicmd, and found that the driver may be not
>> support SPC-3, but if i use this by microsoft iscsi initiator, I can
>> pass all the scsi3_test tests.
>
> If you are passing the LUN to the VM with device='lun', the driver and
> VMM do not interpret any SCSI command.  You should see exactly the same
> data as in the host, which includes support for SPC-3:
>
>>>> [root at 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
>
> Can you try using a Linux VM and executing sg_inq in the VM?
>
> Paolo
>



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