Hi,
I'm using Armbian 21.08.6 Bullseye on an Odroid HC2 (http://ix.io/3JUu). I set up tgt (Linux iSCSI) and everything works fine (clients can access the targets). The targets are stored on a btrfs volume.
fstab content:
UUID=4d27c22c-348e-4d96-8d6d-0bed3cc7f965 / ext4 noatime,nodiratime,defaults,commit=600,errors=remount-ro 0 1
tmpfs /tmp tmpfs defaults,nosuid 0 0
/dev/disk/by-uuid/23e54a5b-e08b-49a9-af88-cffc88d9e84e /srv/dev-disk-by-uuid-23e54a5b-e08b-49a9-af88-cffc88d9e84e btrfs defaults,nofail 0 2
However, when a reboot occurs, tgtd seems to not start properly:
Clients cannot access the targets.
tgtadm shows `backing store path: None`
Full output:
nas:~:# tgtadm --lld iscsi --mode target --op show
Target 1: iqn.2021-12.odroidxu4:test
System information:
Driver: iscsi
State: ready
I_T nexus information:
LUN information:
LUN: 0
Type: controller
SCSI ID: IET 00010000
SCSI SN: beaf10
Size: 0 MB, Block size: 1
Online: Yes
Removable media: No
Prevent removal: No
Readonly: No
SWP: No
Thin-provisioning: No
Backing store type: null
Backing store path: None
Backing store flags:
Account information:
ACL information:
ALL
Target 2: iqn.2021-12.odroidxu4:testf
System information:
Driver: iscsi
State: ready
I_T nexus information:
I_T nexus: 1
Initiator: iqn.1991-05.com.microsoft:sirius alias: none
Connection: 1
IP Address: 192.168.50.26
LUN information:
LUN: 0
Type: controller
SCSI ID: IET 00020000
SCSI SN: beaf20
Size: 0 MB, Block size: 1
Online: Yes
Removable media: No
Prevent removal: No
Readonly: No
SWP: No
Thin-provisioning: No
Backing store type: null
Backing store path: None
Backing store flags:
Account information:
ACL information:
ALL
However after restarting the tgtd with `systemctl restart tgt.service`, everything works fine again. tgtadm output: (Note that `Backing store path`is set).
nas:~:# tgtadm --lld iscsi --mode target --op show
Target 1: iqn.2021-12.odroidxu4:test
System information:
Driver: iscsi
State: ready
I_T nexus information:
LUN information:
LUN: 0
Type: controller
SCSI ID: IET 00010000
SCSI SN: beaf10
Size: 0 MB, Block size: 1
Online: Yes
Removable media: No
Prevent removal: No
Readonly: No
SWP: No
Thin-provisioning: No
Backing store type: null
Backing store path: None
Backing store flags:
LUN: 1
Type: disk
SCSI ID: IET 00010001
SCSI SN: beaf11
Size: 536871 MB, Block size: 512
Online: Yes
Removable media: No
Prevent removal: No
Readonly: No
SWP: No
Thin-provisioning: No
Backing store type: rdwr
Backing store path: /srv/dev-disk-by-uuid-23e54a5b-e08b-49a9-af88-cffc88d9e84e/backup-nb-regina/test
Backing store flags:
Account information:
ACL information:
ALL
Target 2: iqn.2021-12.odroidxu4:testf
System information:
Driver: iscsi
State: ready
I_T nexus information:
I_T nexus: 1
Initiator: iqn.1991-05.com.microsoft:sirius alias: none
Connection: 1
IP Address: 192.168.50.26
LUN information:
LUN: 0
Type: controller
SCSI ID: IET 00020000
SCSI SN: beaf20
Size: 0 MB, Block size: 1
Online: Yes
Removable media: No
Prevent removal: No
Readonly: No
SWP: No
Thin-provisioning: No
Backing store type: null
Backing store path: None
Backing store flags:
LUN: 1
Type: disk
SCSI ID: IET 00020001
SCSI SN: beaf21
Size: 1073742 MB, Block size: 512
Online: Yes
Removable media: No
Prevent removal: No
Readonly: No
SWP: No
Thin-provisioning: No
Backing store type: rdwr
Backing store path: /srv/dev-disk-by-uuid-23e54a5b-e08b-49a9-af88-cffc88d9e84e/backup-nb-regina/testf
Backing store flags:
Account information:
ACL information:
ALL
I worked around this issue by adding a `ExecStartPre=/bin/sleep 60` to the `tgt.service` unit.
However, I would like to solve the issue substantially. Does anybody have an idea how to debug/solve this?
Best,
exponentialverteilt
