[Bug 1891214] Re: targetcli/LIO needs tcm_vhost and xen-scsiback feature enabled OR option disabled
Rafael David Tinoco
1891214 at bugs.launchpad.net
Tue Sep 8 12:42:09 UTC 2020
Okay, since TCM_VHOST is experimental in kernel, as we are in feature
freeze for Groovy, I'm going to cap the missing features from targetcli
so end user does not experience failures from the UI. This bug can serve
as a future guidance in enabling those options (specially TCM_VHOST).
** Changed in: qemu (Ubuntu)
Milestone: ubuntu-20.10-beta => None
** Changed in: python-rtslib-fb (Ubuntu)
Milestone: ubuntu-20.10-beta => None
** Changed in: linux (Ubuntu)
Milestone: ubuntu-20.10-beta => None
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https://bugs.launchpad.net/bugs/1891214
Title:
targetcli/LIO needs tcm_vhost and xen-scsiback feature enabled OR
option disabled
Status in linux package in Ubuntu:
Confirmed
Status in python-rtslib-fb package in Ubuntu:
Confirmed
Status in qemu package in Ubuntu:
Incomplete
Bug description:
targetcli-fb was recently included in MAIN and rely on some features
that aren't available currently in Ubuntu:
## TCM VHOST
/vhost> create
b'modprobe: FATAL: Module tcm_vhost not found in directory /lib/modules/...
not enabled in Ubuntu kernels.
QEMU virtio-scsi feature:
https://wiki.qemu.org/Features/VirtioSCSI/TCM_Overview
KERNEL option to be enabled:
https://cateee.net/lkddb/web-lkddb/TCM_VHOST.html
KERNEL TCM documentation:
https://www.kernel.org/doc/html/latest/target/tcmu-design.html
LIO (LinuxIO) VHOST feature explained:
http://linux-iscsi.org/wiki/VHost
## XEN PVSCSI
Same happens for XEN:
https://wiki.xenproject.org/wiki/Paravirtualized_SCSI
PS: this would I would go for a targetcli fabric module disablement
instead of enabling the feature.
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