[pve-devel] qemu 1.2 - open issues

Alexandre DERUMIER aderumier at odiso.com
Fri Sep 7 09:27:00 CEST 2012


also if
> Improved support for passthrough of SCSI tapes and media changers. 
so this is with local /dev/sgX. file=/dev/sgx scsi-blk ? 

don't work, maybe create a lio target to expose the /dev/sgx to iscsi can work ?
But I don't know if lio is already backported in redhat kernel.



----- Mail original ----- 

De: "Alexandre DERUMIER" <aderumier at odiso.com> 
À: "Dietmar Maurer" <dietmar at proxmox.com> 
Cc: pve-devel at pve.proxmox.com 
Envoyé: Vendredi 7 Septembre 2012 09:20:33 
Objet: Re: [pve-devel] qemu 1.2 - open issues 

> Three new SCSI host bus adapter devices are available: am53c974 and dc390 emulate 

>> should we add them (scsihw)? 

I think this is for old guest, like win NT4. Not sure we really need them ;) 


>>Also, how can we passthrough SCSI tapes? 
I don't have hardware to test it .... But Yes, I have read that users request it in the forum 


> Improved support for passthrough of SCSI tapes and media changers. 
so this is with local /dev/sgX. file=/dev/sgx scsi-blk ? 

> libiscsi can be used together with scsi-generic to pass iSCSI tapes and media changers to the guest. 
So this part is for ISCSI tapes, should be easy iscsi://ip/lun . scsi-generic ? 
iscsidirect storage plugin can do the job I think. 


Maybe their is some emulators which can simulate a tape drive to test ? 


----- Mail original ----- 

De: "Dietmar Maurer" <dietmar at proxmox.com> 
À: pve-devel at pve.proxmox.com 
Envoyé: Vendredi 7 Septembre 2012 07:36:33 
Objet: [pve-devel] qemu 1.2 - open issues 

Just looking at the changelog found at: http://wiki.qemu.org/ChangeLog/1.2 

> Three new SCSI host bus adapter devices are available: am53c974 and dc390 emulate 

should we add them (scsihw)? 

Also, how can we passthrough SCSI tapes? 

> Improved support for passthrough of SCSI tapes and media changers. 
> libiscsi can be used together with scsi-generic to pass iSCSI tapes and media changers to the guest. 

That would be a great feature if we can make that work. 

- Dietmar 




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