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SAN attachment to HPVM guest

 
Dbourcier
Advisor

SAN attachment to HPVM guest

Hello,

I installed HPVM with two guests and I'm wondering if there is any way to attach a new LUN to the guest directly and bypass the master.

Curently the LUN are attached to the master and disks are added to the guests using hpvmmodify command.

Thanks in advance for your help
4 REPLIES 4
Jozef_Novak
Respected Contributor

Re: SAN attachment to HPVM guest

Hello,

no, this is not possible. All guest storage is under VM host control. This means that each storage device configured in a guest must have a backing store on the VM host. It can be either a raw disk, partition, LVM volume or a file in a VM host filesystem.

SAN LUN cannot be attached directly to the guest as FC adapters are not virtualized and hence the SAN traffic must go through HBAs on the VM host.

J.
Dbourcier
Advisor

Re: SAN attachment to HPVM guest

Hi Jozef,

Thanks for your prompt feedback.

That's what I thought as well but believing the picture page 7 on the documentation attached it sounds possible to have a virtual HBA on the guest using AVIO drivers.

melvyn burnard
Honored Contributor

Re: SAN attachment to HPVM guest

you can have avio drivers for the virtual NIC and virtual storage, but it does NOT give you direct access to the FC as of the current release of VM.
You still need to create a virtual disk on the host and assign iot to the guest
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Jozef_Novak
Respected Contributor

Re: SAN attachment to HPVM guest

Hello (again),

yes the picture really mentions virtual HBAs, however, as far as I know all storage in VM guests attaches to virtualized SCSI adapters. Use of AVIO storage type is specified in hpvmmodify command when adding a storage device.

My understanding is that if LUNs could be presented directly to a VM, it would have to virtualize FC adapters with characteristics like ports, WWNs and so on.

J.