[Bug 1712811] Re: iscsiadm sometimes does not show attached device (iscsiadm -m session) but device is really exist and attached
Alexander Symonenko
1712811 at bugs.launchpad.net
Thu Aug 24 13:38:36 UTC 2017
** Description changed:
Hi colleagues.
I have some troubles with iscsiadm. iscsiadm sometimes creates LUN but
does not show attached disk. My device is really exist.
Login:
- >sudo -s iscsiadm --mode node --portal 192.168.1.86 --targetname
+ >sudo -s iscsiadm --mode node --portal 192.168.1.86 --targetname
iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879
--login 2>&1
- Logging in to [iface: default, target: iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879, portal: 192.168.1.86,3260] (multiple)
- Login to [iface: default, target: iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879, portal: 192.168.1.86,3260] successful.
+ Logging in to [iface: default, target: iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879, portal: 192.168.1.86,3260] (multiple)
+ Login to [iface: default, target: iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879, portal: 192.168.1.86,3260] successful.
Check result:
- >sudo -s iscsiadm -m session -P 3 2>&1
-
- Target: iqn.2010-06.com.nutanix:vg-backup-3943a3b9-3745-4dd7-ba0e-72f25b4a417b
- Current Portal: 192.168.1.86:3260,1
- Persistent Portal: 192.168.1.86:3260,1
- **********
- Interface:
- **********
- Iface Name: default
- Iface Transport: tcp
- Iface Initiatorname: iqn.1993-08.org.debian:01:5bb3c3d5f39
- Iface IPaddress: 192.168.0.43
- Iface HWaddress: <empty>
- Iface Netdev: <empty>
- SID: 10
- iSCSI Connection State: LOGGED IN
- iSCSI Session State: LOGGED_IN
- Internal iscsid Session State: NO CHANGE
- *********
- Timeouts:
- *********
- Recovery Timeout: 120
- Target Reset Timeout: 30
- LUN Reset Timeout: 30
- Abort Timeout: 15
- *****
- CHAP:
- *****
- username: <empty>
- password: ********
- username_in: <empty>
- password_in: ********
- ************************
- Negotiated iSCSI params:
- ************************
- HeaderDigest: None
- DataDigest: None
- MaxRecvDataSegmentLength: 262144
- MaxXmitDataSegmentLength: 1048576
- FirstBurstLength: 262144
- MaxBurstLength: 16776192
- ImmediateData: Yes
- InitialR2T: Yes
- MaxOutstandingR2T: 1
- ************************
- Attached SCSI devices:
- ************************
- Host Number: 12 State: running
- scsi12 Channel 00 Id 0 Lun: 0
- Attached scsi disk sdc State: running
- Target: iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879
- Current Portal: 192.168.1.86:3260,1
- Persistent Portal: 192.168.1.86:3260,1
- **********
- Interface:
- **********
- Iface Name: default
- Iface Transport: tcp
- Iface Initiatorname: iqn.1993-08.org.debian:01:5bb3c3d5f39
- Iface IPaddress: 192.168.0.43
- Iface HWaddress: <empty>
- Iface Netdev: <empty>
- SID: 40
- iSCSI Connection State: LOGGED IN
- iSCSI Session State: LOGGED_IN
- Internal iscsid Session State: NO CHANGE
- *********
- Timeouts:
- *********
- Recovery Timeout: 120
- Target Reset Timeout: 30
- LUN Reset Timeout: 30
- Abort Timeout: 15
- *****
- CHAP:
- *****
- username: <empty>
- password: ********
- username_in: <empty>
- password_in: ********
- ************************
- Negotiated iSCSI params:
- ************************
- HeaderDigest: None
- DataDigest: None
- MaxRecvDataSegmentLength: 262144
- MaxXmitDataSegmentLength: 1048576
- FirstBurstLength: 262144
- MaxBurstLength: 16776192
- ImmediateData: Yes
- InitialR2T: Yes
- MaxOutstandingR2T: 1
- ************************
- Attached SCSI devices:
- ************************
- Host Number: 42 State: running
- scsi42 Channel 00 Id 0 Lun: 0
- Target: iqn.2010-06.com.nutanix:vg-backup-2c392880-0708-4911-86ed-16dfd4ff47f6
- Current Portal: 192.168.1.86:3260,1
- Persistent Portal: 192.168.1.86:3260,1
- **********
- Interface:
- **********
- Iface Name: default
- Iface Transport: tcp
- Iface Initiatorname: iqn.1993-08.org.debian:01:5bb3c3d5f39
- Iface IPaddress: 192.168.0.43
- Iface HWaddress: <empty>
- Iface Netdev: <empty>
- SID: 6
- iSCSI Connection State: LOGGED IN
- iSCSI Session State: LOGGED_IN
- Internal iscsid Session State: NO CHANGE
- *********
- Timeouts:
- *********
- Recovery Timeout: 120
- Target Reset Timeout: 30
- LUN Reset Timeout: 30
- Abort Timeout: 15
- *****
- CHAP:
- *****
- username: <empty>
- password: ********
- username_in: <empty>
- password_in: ********
- ************************
- Negotiated iSCSI params:
- ************************
- HeaderDigest: None
- DataDigest: None
- MaxRecvDataSegmentLength: 262144
- MaxXmitDataSegmentLength: 1048576
- FirstBurstLength: 262144
- MaxBurstLength: 16776192
- ImmediateData: Yes
- InitialR2T: Yes
- MaxOutstandingR2T: 1
- ************************
- Attached SCSI devices:
- ************************
- Host Number: 8 State: running
- scsi8 Channel 00 Id 0 Lun: 0
- Attached scsi disk sdb State: running
-
-
+ >sudo -s iscsiadm -m session -P 3 2>&1
+
+ Target: iqn.2010-06.com.nutanix:vg-backup-3943a3b9-3745-4dd7-ba0e-72f25b4a417b
+ Current Portal: 192.168.1.86:3260,1
+ Persistent Portal: 192.168.1.86:3260,1
+ **********
+ Interface:
+ **********
+ Iface Name: default
+ Iface Transport: tcp
+ Iface Initiatorname: iqn.1993-08.org.debian:01:5bb3c3d5f39
+ Iface IPaddress: 192.168.0.43
+ Iface HWaddress: <empty>
+ Iface Netdev: <empty>
+ SID: 10
+ iSCSI Connection State: LOGGED IN
+ iSCSI Session State: LOGGED_IN
+ Internal iscsid Session State: NO CHANGE
+ *********
+ Timeouts:
+ *********
+ Recovery Timeout: 120
+ Target Reset Timeout: 30
+ LUN Reset Timeout: 30
+ Abort Timeout: 15
+ *****
+ CHAP:
+ *****
+ username: <empty>
+ password: ********
+ username_in: <empty>
+ password_in: ********
+ ************************
+ Negotiated iSCSI params:
+ ************************
+ HeaderDigest: None
+ DataDigest: None
+ MaxRecvDataSegmentLength: 262144
+ MaxXmitDataSegmentLength: 1048576
+ FirstBurstLength: 262144
+ MaxBurstLength: 16776192
+ ImmediateData: Yes
+ InitialR2T: Yes
+ MaxOutstandingR2T: 1
+ ************************
+ Attached SCSI devices:
+ ************************
+ Host Number: 12 State: running
+ scsi12 Channel 00 Id 0 Lun: 0
+ Attached scsi disk sdc State: running
+ Target: iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879
+ Current Portal: 192.168.1.86:3260,1
+ Persistent Portal: 192.168.1.86:3260,1
+ **********
+ Interface:
+ **********
+ Iface Name: default
+ Iface Transport: tcp
+ Iface Initiatorname: iqn.1993-08.org.debian:01:5bb3c3d5f39
+ Iface IPaddress: 192.168.0.43
+ Iface HWaddress: <empty>
+ Iface Netdev: <empty>
+ SID: 40
+ iSCSI Connection State: LOGGED IN
+ iSCSI Session State: LOGGED_IN
+ Internal iscsid Session State: NO CHANGE
+ *********
+ Timeouts:
+ *********
+ Recovery Timeout: 120
+ Target Reset Timeout: 30
+ LUN Reset Timeout: 30
+ Abort Timeout: 15
+ *****
+ CHAP:
+ *****
+ username: <empty>
+ password: ********
+ username_in: <empty>
+ password_in: ********
+ ************************
+ Negotiated iSCSI params:
+ ************************
+ HeaderDigest: None
+ DataDigest: None
+ MaxRecvDataSegmentLength: 262144
+ MaxXmitDataSegmentLength: 1048576
+ FirstBurstLength: 262144
+ MaxBurstLength: 16776192
+ ImmediateData: Yes
+ InitialR2T: Yes
+ MaxOutstandingR2T: 1
+ ************************
+ Attached SCSI devices:
+ ************************
+ Host Number: 42 State: running
+ scsi42 Channel 00 Id 0 Lun: 0
+ Target: iqn.2010-06.com.nutanix:vg-backup-2c392880-0708-4911-86ed-16dfd4ff47f6
+ Current Portal: 192.168.1.86:3260,1
+ Persistent Portal: 192.168.1.86:3260,1
+ **********
+ Interface:
+ **********
+ Iface Name: default
+ Iface Transport: tcp
+ Iface Initiatorname: iqn.1993-08.org.debian:01:5bb3c3d5f39
+ Iface IPaddress: 192.168.0.43
+ Iface HWaddress: <empty>
+ Iface Netdev: <empty>
+ SID: 6
+ iSCSI Connection State: LOGGED IN
+ iSCSI Session State: LOGGED_IN
+ Internal iscsid Session State: NO CHANGE
+ *********
+ Timeouts:
+ *********
+ Recovery Timeout: 120
+ Target Reset Timeout: 30
+ LUN Reset Timeout: 30
+ Abort Timeout: 15
+ *****
+ CHAP:
+ *****
+ username: <empty>
+ password: ********
+ username_in: <empty>
+ password_in: ********
+ ************************
+ Negotiated iSCSI params:
+ ************************
+ HeaderDigest: None
+ DataDigest: None
+ MaxRecvDataSegmentLength: 262144
+ MaxXmitDataSegmentLength: 1048576
+ FirstBurstLength: 262144
+ MaxBurstLength: 16776192
+ ImmediateData: Yes
+ InitialR2T: Yes
+ MaxOutstandingR2T: 1
+ ************************
+ Attached SCSI devices:
+ ************************
+ Host Number: 8 State: running
+ scsi8 Channel 00 Id 0 Lun: 0
+ Attached scsi disk sdb State: running
+
There is no string after scsi42 Channel 00 Id 0 Lun: 0:
- Attached scsi disk sdd State: running
-
+ Attached scsi disk sdd State: running
+
But device is really exist:
- > ll /dev/disk/by-path/
+ > ll /dev/disk/by-path/
Result:
- lrwxrwxrwx 1 root root 9 сер 22 15:18 ip-192.168.1.86:3260-iscsi-iqn.2010-06.com.nutanix:vg-backup-2c392880-0708-4911-86ed-16dfd4ff47f6-lun-0 -> ../../sdb
- lrwxrwxrwx 1 root root 9 сер 23 11:52 ip-192.168.1.86:3260-iscsi-iqn.2010-06.com.nutanix:vg-backup-3943a3b9-3745-4dd7-ba0e-72f25b4a417b-lun-0 -> ../../sdc
- lrwxrwxrwx 1 root root 9 сер 23 19:02 ip-192.168.1.86:3260-iscsi-iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879-lun-0 -> ../../sdd
- lrwxrwxrwx 1 root root 9 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0 -> ../../sda
- lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part1 -> ../../sda1
- lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part2 -> ../../sda2
- lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part5 -> ../../sda5
-
+ lrwxrwxrwx 1 root root 9 сер 22 15:18 ip-192.168.1.86:3260-iscsi-iqn.2010-06.com.nutanix:vg-backup-2c392880-0708-4911-86ed-16dfd4ff47f6-lun-0 -> ../../sdb
+ lrwxrwxrwx 1 root root 9 сер 23 11:52 ip-192.168.1.86:3260-iscsi-iqn.2010-06.com.nutanix:vg-backup-3943a3b9-3745-4dd7-ba0e-72f25b4a417b-lun-0 -> ../../sdc
+ lrwxrwxrwx 1 root root 9 сер 23 19:02 ip-192.168.1.86:3260-iscsi-iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879-lun-0 -> ../../sdd
+ lrwxrwxrwx 1 root root 9 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0 -> ../../sda
+ lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part1 -> ../../sda1
+ lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part2 -> ../../sda2
+ lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part5 -> ../../sda5
+
As we can see my target/lun connected to sdd.
If I make full re-login then all is ok:
- > sudo iscsiadm -m node --logout
- > ll /dev/disk/by-path/
-
- lrwxrwxrwx 1 root root 9 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0 -> ../../sda
- lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part1 -> ../../sda1
- lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part2 -> ../../sda2
- lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part5 -> ../../sda5
-
- > sudo -s iscsiadm --mode node --portal 192.168.1.86 --targetname iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879 --login 2>&1
-
- Logging in to [iface: default, target: iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879, portal: 192.168.1.86,3260] (multiple)
- Login to [iface: default, target: iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879, portal: 192.168.1.86,3260] successful.
+ > sudo iscsiadm -m node --logout
+ > ll /dev/disk/by-path/
+
+ lrwxrwxrwx 1 root root 9 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0 -> ../../sda
+ lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part1 -> ../../sda1
+ lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part2 -> ../../sda2
+ lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part5 -> ../../sda5
+
+ > sudo -s iscsiadm --mode node --portal 192.168.1.86 --targetname
+ iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879
+ --login 2>&1
+
+ Logging in to [iface: default, target: iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879, portal: 192.168.1.86,3260] (multiple)
+ Login to [iface: default, target: iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879, portal: 192.168.1.86,3260] successful.
Result:
-
- > ll /dev/disk/by-path/
-
- lrwxrwxrwx 1 root root 9 сер 24 14:38 ip-192.168.1.86:3260-iscsi-iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879-lun-0 -> ../../sdb
- lrwxrwxrwx 1 root root 9 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0 -> ../../sda
- lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part1 -> ../../sda1
- lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part2 -> ../../sda2
- lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part5 -> ../../sda5
-
- > sudo -s iscsiadm -m session -P 3 2>&1
-
- Target: iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879
- Current Portal: 192.168.1.86:3260,1
- Persistent Portal: 192.168.1.86:3260,1
- **********
- Interface:
- **********
- Iface Name: default
- Iface Transport: tcp
- Iface Initiatorname: iqn.1993-08.org.debian:01:5bb3c3d5f39
- Iface IPaddress: 192.168.0.43
- Iface HWaddress: <empty>
- Iface Netdev: <empty>
- SID: 41
- iSCSI Connection State: LOGGED IN
- iSCSI Session State: LOGGED_IN
- Internal iscsid Session State: NO CHANGE
- *********
- Timeouts:
- *********
- Recovery Timeout: 120
- Target Reset Timeout: 30
- LUN Reset Timeout: 30
- Abort Timeout: 15
- *****
- CHAP:
- *****
- username: <empty>
- password: ********
- username_in: <empty>
- password_in: ********
- ************************
- Negotiated iSCSI params:
- ************************
- HeaderDigest: None
- DataDigest: None
- MaxRecvDataSegmentLength: 262144
- MaxXmitDataSegmentLength: 1048576
- FirstBurstLength: 262144
- MaxBurstLength: 16776192
- ImmediateData: Yes
- InitialR2T: Yes
- MaxOutstandingR2T: 1
- ************************
- Attached SCSI devices:
- ************************
- Host Number: 43 State: running
- scsi43 Channel 00 Id 0 Lun: 0
- Attached scsi disk sdb State: running
+
+ > ll /dev/disk/by-path/
+
+ lrwxrwxrwx 1 root root 9 сер 24 14:38 ip-192.168.1.86:3260-iscsi-iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879-lun-0 -> ../../sdb
+ lrwxrwxrwx 1 root root 9 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0 -> ../../sda
+ lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part1 -> ../../sda1
+ lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part2 -> ../../sda2
+ lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part5 -> ../../sda5
+
+ > sudo -s iscsiadm -m session -P 3 2>&1
+
+ Target: iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879
+ Current Portal: 192.168.1.86:3260,1
+ Persistent Portal: 192.168.1.86:3260,1
+ **********
+ Interface:
+ **********
+ Iface Name: default
+ Iface Transport: tcp
+ Iface Initiatorname: iqn.1993-08.org.debian:01:5bb3c3d5f39
+ Iface IPaddress: 192.168.0.43
+ Iface HWaddress: <empty>
+ Iface Netdev: <empty>
+ SID: 41
+ iSCSI Connection State: LOGGED IN
+ iSCSI Session State: LOGGED_IN
+ Internal iscsid Session State: NO CHANGE
+ *********
+ Timeouts:
+ *********
+ Recovery Timeout: 120
+ Target Reset Timeout: 30
+ LUN Reset Timeout: 30
+ Abort Timeout: 15
+ *****
+ CHAP:
+ *****
+ username: <empty>
+ password: ********
+ username_in: <empty>
+ password_in: ********
+ ************************
+ Negotiated iSCSI params:
+ ************************
+ HeaderDigest: None
+ DataDigest: None
+ MaxRecvDataSegmentLength: 262144
+ MaxXmitDataSegmentLength: 1048576
+ FirstBurstLength: 262144
+ MaxBurstLength: 16776192
+ ImmediateData: Yes
+ InitialR2T: Yes
+ MaxOutstandingR2T: 1
+ ************************
+ Attached SCSI devices:
+ ************************
+ Host Number: 43 State: running
+ scsi43 Channel 00 Id 0 Lun: 0
+ Attached scsi disk sdb State: running
After re-login the string with device name is exist:
- Attached scsi disk sdb State: running
-
- Cross link of this on stackoverflow:
-
- https://stackoverflow.com/questions/45861219/iscsiadm-sometimes-
- does-not-show-attached-device-iscsiadm-m-session-but-devic
+ Attached scsi disk sdb State: running
--
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to open-iscsi in Ubuntu.
https://bugs.launchpad.net/bugs/1712811
Title:
iscsiadm sometimes does not show attached device (iscsiadm -m session)
but device is really exist and attached
Status in open-iscsi package in Ubuntu:
New
Bug description:
Hi colleagues.
I have some troubles with iscsiadm. iscsiadm sometimes creates LUN but
does not show attached disk. My device is really exist.
Login:
>sudo -s iscsiadm --mode node --portal 192.168.1.86 --targetname
iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-
4df5-8955-d3f6ffa27879 --login 2>&1
Logging in to [iface: default, target: iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879, portal: 192.168.1.86,3260] (multiple)
Login to [iface: default, target: iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879, portal: 192.168.1.86,3260] successful.
Check result:
>sudo -s iscsiadm -m session -P 3 2>&1
Target: iqn.2010-06.com.nutanix:vg-backup-3943a3b9-3745-4dd7-ba0e-72f25b4a417b
Current Portal: 192.168.1.86:3260,1
Persistent Portal: 192.168.1.86:3260,1
**********
Interface:
**********
Iface Name: default
Iface Transport: tcp
Iface Initiatorname: iqn.1993-08.org.debian:01:5bb3c3d5f39
Iface IPaddress: 192.168.0.43
Iface HWaddress: <empty>
Iface Netdev: <empty>
SID: 10
iSCSI Connection State: LOGGED IN
iSCSI Session State: LOGGED_IN
Internal iscsid Session State: NO CHANGE
*********
Timeouts:
*********
Recovery Timeout: 120
Target Reset Timeout: 30
LUN Reset Timeout: 30
Abort Timeout: 15
*****
CHAP:
*****
username: <empty>
password: ********
username_in: <empty>
password_in: ********
************************
Negotiated iSCSI params:
************************
HeaderDigest: None
DataDigest: None
MaxRecvDataSegmentLength: 262144
MaxXmitDataSegmentLength: 1048576
FirstBurstLength: 262144
MaxBurstLength: 16776192
ImmediateData: Yes
InitialR2T: Yes
MaxOutstandingR2T: 1
************************
Attached SCSI devices:
************************
Host Number: 12 State: running
scsi12 Channel 00 Id 0 Lun: 0
Attached scsi disk sdc State: running
Target: iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879
Current Portal: 192.168.1.86:3260,1
Persistent Portal: 192.168.1.86:3260,1
**********
Interface:
**********
Iface Name: default
Iface Transport: tcp
Iface Initiatorname: iqn.1993-08.org.debian:01:5bb3c3d5f39
Iface IPaddress: 192.168.0.43
Iface HWaddress: <empty>
Iface Netdev: <empty>
SID: 40
iSCSI Connection State: LOGGED IN
iSCSI Session State: LOGGED_IN
Internal iscsid Session State: NO CHANGE
*********
Timeouts:
*********
Recovery Timeout: 120
Target Reset Timeout: 30
LUN Reset Timeout: 30
Abort Timeout: 15
*****
CHAP:
*****
username: <empty>
password: ********
username_in: <empty>
password_in: ********
************************
Negotiated iSCSI params:
************************
HeaderDigest: None
DataDigest: None
MaxRecvDataSegmentLength: 262144
MaxXmitDataSegmentLength: 1048576
FirstBurstLength: 262144
MaxBurstLength: 16776192
ImmediateData: Yes
InitialR2T: Yes
MaxOutstandingR2T: 1
************************
Attached SCSI devices:
************************
Host Number: 42 State: running
scsi42 Channel 00 Id 0 Lun: 0
Target: iqn.2010-06.com.nutanix:vg-backup-2c392880-0708-4911-86ed-16dfd4ff47f6
Current Portal: 192.168.1.86:3260,1
Persistent Portal: 192.168.1.86:3260,1
**********
Interface:
**********
Iface Name: default
Iface Transport: tcp
Iface Initiatorname: iqn.1993-08.org.debian:01:5bb3c3d5f39
Iface IPaddress: 192.168.0.43
Iface HWaddress: <empty>
Iface Netdev: <empty>
SID: 6
iSCSI Connection State: LOGGED IN
iSCSI Session State: LOGGED_IN
Internal iscsid Session State: NO CHANGE
*********
Timeouts:
*********
Recovery Timeout: 120
Target Reset Timeout: 30
LUN Reset Timeout: 30
Abort Timeout: 15
*****
CHAP:
*****
username: <empty>
password: ********
username_in: <empty>
password_in: ********
************************
Negotiated iSCSI params:
************************
HeaderDigest: None
DataDigest: None
MaxRecvDataSegmentLength: 262144
MaxXmitDataSegmentLength: 1048576
FirstBurstLength: 262144
MaxBurstLength: 16776192
ImmediateData: Yes
InitialR2T: Yes
MaxOutstandingR2T: 1
************************
Attached SCSI devices:
************************
Host Number: 8 State: running
scsi8 Channel 00 Id 0 Lun: 0
Attached scsi disk sdb State: running
There is no string after scsi42 Channel 00 Id 0 Lun: 0:
Attached scsi disk sdd State: running
But device is really exist:
> ll /dev/disk/by-path/
Result:
lrwxrwxrwx 1 root root 9 сер 22 15:18 ip-192.168.1.86:3260-iscsi-iqn.2010-06.com.nutanix:vg-backup-2c392880-0708-4911-86ed-16dfd4ff47f6-lun-0 -> ../../sdb
lrwxrwxrwx 1 root root 9 сер 23 11:52 ip-192.168.1.86:3260-iscsi-iqn.2010-06.com.nutanix:vg-backup-3943a3b9-3745-4dd7-ba0e-72f25b4a417b-lun-0 -> ../../sdc
lrwxrwxrwx 1 root root 9 сер 23 19:02 ip-192.168.1.86:3260-iscsi-iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879-lun-0 -> ../../sdd
lrwxrwxrwx 1 root root 9 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0 -> ../../sda
lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part5 -> ../../sda5
As we can see my target/lun connected to sdd.
If I make full re-login then all is ok:
> sudo iscsiadm -m node --logout
> ll /dev/disk/by-path/
lrwxrwxrwx 1 root root 9 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0 -> ../../sda
lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part5 -> ../../sda5
> sudo -s iscsiadm --mode node --portal 192.168.1.86 --targetname
iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-
4df5-8955-d3f6ffa27879 --login 2>&1
Logging in to [iface: default, target: iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879, portal: 192.168.1.86,3260] (multiple)
Login to [iface: default, target: iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879, portal: 192.168.1.86,3260] successful.
Result:
> ll /dev/disk/by-path/
lrwxrwxrwx 1 root root 9 сер 24 14:38 ip-192.168.1.86:3260-iscsi-iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879-lun-0 -> ../../sdb
lrwxrwxrwx 1 root root 9 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0 -> ../../sda
lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 сер 22 14:17 pci-0000:00:10.0-scsi-0:0:0:0-part5 -> ../../sda5
> sudo -s iscsiadm -m session -P 3 2>&1
Target: iqn.2010-06.com.nutanix:vg-restore-99079f45-f62d-4df5-8955-d3f6ffa27879
Current Portal: 192.168.1.86:3260,1
Persistent Portal: 192.168.1.86:3260,1
**********
Interface:
**********
Iface Name: default
Iface Transport: tcp
Iface Initiatorname: iqn.1993-08.org.debian:01:5bb3c3d5f39
Iface IPaddress: 192.168.0.43
Iface HWaddress: <empty>
Iface Netdev: <empty>
SID: 41
iSCSI Connection State: LOGGED IN
iSCSI Session State: LOGGED_IN
Internal iscsid Session State: NO CHANGE
*********
Timeouts:
*********
Recovery Timeout: 120
Target Reset Timeout: 30
LUN Reset Timeout: 30
Abort Timeout: 15
*****
CHAP:
*****
username: <empty>
password: ********
username_in: <empty>
password_in: ********
************************
Negotiated iSCSI params:
************************
HeaderDigest: None
DataDigest: None
MaxRecvDataSegmentLength: 262144
MaxXmitDataSegmentLength: 1048576
FirstBurstLength: 262144
MaxBurstLength: 16776192
ImmediateData: Yes
InitialR2T: Yes
MaxOutstandingR2T: 1
************************
Attached SCSI devices:
************************
Host Number: 43 State: running
scsi43 Channel 00 Id 0 Lun: 0
Attached scsi disk sdb State: running
After re-login the string with device name is exist:
Attached scsi disk sdb State: running
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