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Date: Sat, 19 Feb 2011 16:37:46 +0000
Message-ID: <AANLkTi=XPXn4qfe4PLwktBdoOVLbPrLtFV+J4MYHeM9x@mail.gmail.com>
Subject: Re: [Qemu-devel] iSCSI block driver support
From: Stefan Hajnoczi <stefanha@gmail.com>
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To: ronniesahlberg@gmail.com
Cc: qemu-devel@nongnu.org

On Fri, Feb 4, 2011 at 4:37 AM,  <ronniesahlberg@gmail.com> wrote:
> The following patch adds a new block driver to QEMU/KVM for iSCSI.
> This utilizes the userspace client library for iscsi at https://github.com/sahlberg/libiscsi and will link with this library if available.
>
> This allows using iSCSI resources with QEMU/KVM without making them visible to the underlying host. Which is very useful when having very large number of iscsi devices, or when you for other reasons do not want to expose these devicdes to others.
>
>
> I have used this patch and installed a RHEL6 system from an iscsi dvd onto a iscsi disk. I have done extensive testing.
> Both normally and also running under valgrind (which is very slow)
>
> ./x86_64-softmmu/qemu-system-x86_64 -m 1024 --enable-kvm -cdrom iscsi://127.0.0.1:3262/iqn.ronnie.test/2 -drive if=virtio,file=iscsi://127.0.0.1:3262/iqn.ronnie.test/1 -boot c

I have successfully installed RHEL6 from IDE CD-ROM to an iSCSI LUN
and was able to boot from it.  Both --enable-io-thread and without
seem to work.

Stefan