Hey, all, we just refreshed stgt to its latest released version
(1.0.41), and I also tweaked the rbd backend to be a little more
flexible and useful.
stgt is a userspace iSCSI target implementation (using tgtd) that can
export several types of storage entities as iSCSI LUNs; backends include
files in synchronous or asynchronous mode, "passthrough" to
real SCSI devices, tape-device emulation on a file, sheepdog block
images, and Ceph RBD images.
New bs_rbd features include:
* fixed up tgt-admin to work with rbd images (so .conf files work)
* no more 20-rbd-image-per-tgtd limit
* tgtadm accepts --bsopts for each image
conf= to set path to ceph.conf file
id= to set clientid
This means that each image can have different logging and access
rights, or even refer to a different cluster.
The stgt source has also been refactored so that packagers can
build with or without bs_rbd, now built into an .so, and distribute
that module separately if desired; thus the base package doesn't
require Ceph libraries librbd and librados.
The source is available upstream at http://github.com/fujita/stgt.
Packages are built and available in the ceph-extras repository at
http://ceph.com/packages/ceph-extras/.
Enjoy!
--
Dan Mick, Filesystem Engineering
Inktank Storage, Inc. http://inktank.com
Ceph docs: http://ceph.com/docs
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