[libvirt] [PATCH 0/1] Merge DanPB's SCSI HBA pool code

Dave Allan dallan at redhat.com
Mon Feb 23 19:42:24 UTC 2009


Guido Günther wrote:
> On Fri, Feb 20, 2009 at 05:14:54PM -0500, David Allan wrote:
>> This patch contains the implementation Daniel Berrange did of storage
>> pools using SCSI HBAs.  I have updated it for the current tree in
>> preparation for implementing NPIV support.  Let me know what you
>> think.
> This looks like a great addition but I wonder if it is of any real use
> without supporting multipath? On SANs issuing I/O to some paths might
> cause severe performance penalties or the LUN might be visible but I/O
> is rejected until an explicit switch over command is sent. This would be
> handled transparently if multipath would be used on top.
> Any plans to add this? (Otherwise I might give this a try once I'll find
> some more free time to spend on libvirt again).

Funny you should mention multipath, that's what I'm working on at the 
moment.  :)  The host code will also provide a basis for NPIV support.

Dave




More information about the libvir-list mailing list