Monthly Archives: October 2015

iSNS support coming soon for LIO in Fedora

target-isns recently was added to Rawhide, and will be in a future Fedora release. This add-on to LIO allows it to register with an iSNS server, which potential initiators can then query for available targets. (On Fedora, see isns-utils for both the server, and client query tools.) This removes one of the few remaining areas that other target implementations have been ahead of LIO.

Kudos and thanks to Christophe Vu-Brugier for writing this useful program!

Some targetcli and TCMU questions

Just got an email full of interesting questions, I hope the author will be ok with me answering them here so future searches will see them:

I searched on internet and I don’t find some relevant info about gluster api support via tcmu-runner. Can you tell me please if this support will be added to the stable redhat targetcli in the near future? And I want to know also which targetcli is recommended for setup (targetcli or targetcli-fb) and what is the status for targetcli-3.0.

tcmu-runner is a userspace daemon add-on to LIO that allows requests for a device to be handled by a user process. tcmu-runner has early support for using glfs (via gfapi). Both tcmu-runner and its glfs plugin are beta-quality and will need further work before they are ready for stable Fedora, much less a RHEL release. tcmu-runner just landed in Rawhide, but this is really just to make it easier to test.

RHEL & Fedora use targetcli-fb, which is a fork of targetcli, and what I work on. Since I’m working on both tcmu-runner and targetcli-fb, targetcli-fb will see TCMU support very early.

The -fb packages I maintain switched to a “fbXX” version scheme, so I think you must be referring to the other one 🙂 I don’t have any info about the RTS/Datera targetcli’s status, other than nobody likes having two versions, the targetcli maintainer and I have discussed unifying them into a common version, but the un-fun work of merging them has not happened yet.