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Re: [libvirt-users] libvirt equivalent for VMWare for SCSI mode = independent-persistent?

On 05/19/2016 05:18 AM, Juha Anttila wrote:
> Hi,
> I'm attempting to add virtual SCSI disks to my KVM guests the same way as I did 
> with VMWare, but I'm having issues.
> Without knowing any better, I'm assuming it has something to do with me 
> attaching the disk incorrectly, and when I'm looking at the VMWare config one 
> thing I noticed was the SCSI mode "independent-persistent" which I cannot find 
> in libvirt documentation by quick look. Would anyone know how to achieve this?
> In the VMWare VMX file I have:
> scsi1:4.present = "TRUE"
> scsi1:4.fileName = "SCSI1.vmdk"
> scsi1:4.mode = "independent-persistent"
> scsi1:4.deviceType = "scsi-hardDisk"
> and I attempted the below configuration, but when I tried to use the disk as a 
> IO Fencing disk for veritas cluster file system, it failed saying that the 
> device is not SCSI-3 compliant. With VMWare same works fine.

"Feature-wise" - this seems familiar to the usage I've seen for the
"sgio='unfiltered'" setting for a 'lun'. That is the ability to allow
certain SCSI command through to the disk and in particular I recall it
being used for some sort of fencing operation, but the details escape my
memory right now. In order to use 'sgio' though you have to either have
device='lun' for disk type='block'/'network' or 'volume' (when using a
storage pool).


> SCSI Controller:
> <controller type='scsi' index='0' model='virtio-scsi'>
> <alias name='scsi0'/>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x0e' function='0x0'/>
> </controller>
> Disk:
> <disk type='file' device='disk'>
> <driver name='qemu' type='raw' cache='none'/>
> <source file='/home/VM/VMImages/IOFencing1.img'/>
> <target dev='sda' bus='scsi'/>
> <shareable/>
> <alias name='scsi0-0-0-0'/>
> <address type='drive' controller='0' bus='0' target='0' unit='0'/>
> </disk>
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