The LIO backend for ZFS over iSCSI fetches the json-config periodically from
the target.
This patch reduces the stored config values to those which are actually used
and additonally untaints the values read from the remote host's config-file.
Since the LUN index is used in calls to targetcli on the remote host (via
run_command), untainting prevents the call to crash when run with '-T'.
Tested by creating a zfs over iscsi backed VM, starting it, adding disks,
resizing disks, removing disks, creating snapshots, rolling back to a snapshot.
Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
When working with several ZFS over iSCSI / LIO storages, we might lookup
between them with less than 15 sec interval.
Previously, the cache of the previous storage was used, which was breaking
disk move for example
Signed-off-by: Daniel Berteaud <daniel@firewall-services.com>
In the default config, emulate_tpu is set to 0, which disables
unmap support. Once enabled, trim can run from guest to reclaim free
space.
Signed-off-by: Daniel Berteaud <daniel@firewall-services.com>
It's not needed, LIO sees the new size automatically.
And it was broken anyway. Partially fix#2335
Signed-off-by: Daniel Berteaud <daniel@firewall-services.com>
move two loop bodies from
if (condition) {
...
}
too
next if !condition;
...
to save an indentation level
rename variables to a bit shorter version, i.e.:
s/oneTarget/target/
s/oneTpg/tpg/
and a comment rewording
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Introducing LIO/targetcli support allowing to use recent linux
distributions as iSCSI targets for ZFS volumes.
In order for this to work, two preconditions have to be met:
1. the portal has to be set up correctly using targetcli
2. the initiator has to be authorized to connect to the target
based on the initiator's InitiatorName
When adding a LIO iSCSI target, a new "LIO target portal group" field needs
to be correctly populated in the "Add: ZFS over iSCSI" popup, containing the
fitting "LIO target portal group" name (typically something like 'tpg1').
Signed-Off-By: Udo Rader <udo.rader@bestsolution.at>
Tested-by: Stoiko Ivanov <s.ivanov@proxmox.com>
