Re: [Xen-users] making scsi disks visible to RHEL 5 guest

[K Mehta <kiranmehta1981@xxxxxxxxx>]

Ok.

1. So does it mean that installing some recent version of Redhat/SuSE
will make (fibre channel) scsi3 disks visible
   as scsi3 in the guest

2. Or does it mean that guest OS will never be able to see fibre
channel scsi3 disks (made visible from Dom0) as scsi3 whatever OS
version I install ?


3. If i make scsi3 disks visible to guest directly (not through Dom0),
will guest be expected to see it as scsi3 ? (I think it should !!!)


Thanks,
 kiran

On Mon, Jan 16, 2012 at 5:19 PM, Fajar A. Nugraha <list@xxxxxxxxx> wrote:
> On Mon, Jan 16, 2012 at 6:32 PM, K Mehta <kiranmehta1981@xxxxxxxxx> wrote:
>> Simon.. thanks for your reply.
>>
>> The problem is that scsi commands are failing on xvd devices.
>> Few hours ago i renamed xvd devices are sd* devices in vm config file.
>>  scsi inquiry, TUR and few other commands are working on those sd*
>> devices in the guest. However, scsi reservation  commands (executed
>> using sg util) are failing with error "bad field in cdb including
>> unsupported service action".
>
> That is expected behavior.
>
>>
>> Are some additional steps required to make scsi3 disks visible as
>> scsi3 in the guest. Or we just need to include line like this
>> ->'phy:/dev/mapper/360060e80056509000000650900000260,xvdf,w!'     in
>> the config file for each scsi3 disk..????
>
> Nope.
>
> There's this: http://wiki.xen.org/wiki/Paravirtualized_SCSI
> but AFAIK it's not available on RHEL5's kernel and xen version. You
> MIGHT find it easier to use iscsi (export on dom0, import on domU)
> with support for scsi passthru (e.g. tgt)
>
> --
> Fajar

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