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Re: [libvirt] [Patch v0.5] iSCSI Multi-IQN (Libvirt Support)



Please review.

> -----Original Message-----
> From: Iyer, Shyam
> Sent: Monday, December 28, 2009 2:53 PM
> To: libvir-list redhat com
> Cc: Bellad, Sudhir; Domsch, Matt; KM, Paniraja; dallan redhat com
> Subject: [Patch v0.5] iSCSI Multi-IQN (Libvirt Support)
> 
> 
> This patch set realizes the multi-IQN concept discussed in an earlier
> thread
http://www.mail-archive.com/libvir-list redhat com/msg16706.html
> 
> And here .. http://www.mail-archive.com/libvir-
> list redhat com/msg17499.html
> 
> The patch realizes an XML schema like the one below and allows libvirt
> to read through it to create storage pools.
> These XMLs when created using a virtualization manager realize unique
> VM to storage LUN mappings through a single console and thus opening
up
> possibilities for the following scenarios -
> 
> * possibility of multiple IQNs for a single Guest
> * option for hypervisor's initiator to use these IQNs on behalf of the
> guest
> 
> Change Log from v0.4:
> 1) Set default tab space to 4(Hopefully this is corrected this time ;)
)
> 2) Review comments from Dave Allan
>     a) Use output of "iscsiadm -m iface" to search for existing iqn
> names in the iface files.
> 3) Create new unique iface file names for user provided iqn names if
> the iqns are not present in the existing iface files.
> 
> Change Log from v0.3:
> 1) Set default tab space to 4
> 2) Use Case Description for Commit Log
> 3) Review comments from Dave Allan
>     a) No initiator iqn in the xml would mean use of the default
> initiator iqn name
>     b) Initiator iqn provided would mean a unique session to be
created
> using the provided iqn name.
>     c) Single iSCSI session per pool
> 4) Added syntax in doc/schemas/storagepool.rng
> 
> There are no new errors introduced by this patch with "make check" and
> "make syntax-check" tests.
> 
> Signed-off-by: Sudhir Bellad <sudhir_bellad dell com>
> Signed-off-by: Shyam Iyer <shyam_iyer dell com>


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