On 03/16/2013 04:36 PM, Patrick McGarry wrote:
Hey guys,
TGT has indeed been patch with the first pass at iSCSI work by
Inktanker Dan Mick. This should probably be considered a 'tech
preview' as it is quite new. Expect a blog entry to show up on the
ceph.com blog in a week or two from Dan about all his hard work.
That would be great. I haven't looked into the TGT implementation that
well, but it seems the best way to handle RBD.
You by-pass using the kernel module and run it all in userspace via
librbd. That's much safer then using krbd and re-exporting that block
device.
Wido
Best Regards,
Patrick McGarry
Director, Community || Inktank
http://ceph.com || http://inktank.com
@scuttlemonkey || @ceph || @inktank
On Sat, Mar 16, 2013 at 7:14 AM, Ansgar Jazdzewski
<a.jazdzewski@xxxxxxxxxxxxxx> wrote:
Hi,
i have done a short look into RBD + iSCSI, and i found TGT + librbd.
https://github.com/fujita/tgt
http://stgt.sourceforge.net/
i didn't take a deeper look into it but i like to test it in the next month
or so, it looks easy to me
https://github.com/fujita/tgt/blob/master/doc/README.rbd
cheers
Ansgar
2013/3/16 Bond, Darryl <dbond@xxxxxxxxxxxxx>
I have a small 3 node ceph cluster with 6 OSDs on each node
I would like to re-export some rbd images via LIO.
Is it recommended to run RBD/LIO on one of the cluster nodes?
Preliminary tests show that it works fine. I have seen reports (that I
can't find) that it is not recommended to run the RBD kernel module on an
OSD node.
Has anyone used multiple hosts to do iSCSI multipathing to a singe RBD
image for vmware?
My thoughts are to export the same RBD image via LIO from 2 hosts. It is
easy to configure LIO to use the same iSCSI target address on both hosts.
I could then configure vmware storage with the two ceph nodes as a
primary/secondary failover.
Regards
Darryl
The contents of this electronic message and any attachments are intended
only for the addressee and may contain legally privileged, personal,
sensitive or confidential information. If you are not the intended
addressee, and have received this email, any transmission, distribution,
downloading, printing or photocopying of the contents of this message or
attachments is strictly prohibited. Any legal privilege or confidentiality
attached to this message and attachments is not waived, lost or destroyed by
reason of delivery to any person other than intended addressee. If you have
received this message and are not the intended addressee you should notify
the sender by return email and destroy all copies of the message and any
attachments. Unless expressly attributed, the views expressed in this email
do not necessarily represent the views of the company.
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
--
Wido den Hollander
42on B.V.
Phone: +31 (0)20 700 9902
Skype: contact42on
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
