[SPDK] tgt_node.c: 700:spdk_iscsi_tgt_node_construct: *ERROR*: Could not construct SCSI device

[SPDK] tgt_node.c: 700:spdk_iscsi_tgt_node_construct: *ERROR*: Could not construct SCSI device

[Isaac Otsiabah]

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I have  tested with the "./app/iscsi_tgt/iscsi_tgt   -m 0x101" many times but now I am getting this error on both of my test systems. Something has changed?

tgt_node.c: 700:spdk_iscsi_tgt_node_construct: *ERROR*: Could not construct SCSI device
tgt_node.c: 966:spdk_cf_add_iscsi_tgt_node: *ERROR*: tgt_node1: add_iscsi_target_node error
tgt_node.c: 992:spdk_iscsi_init_tgt_nodes: *ERROR*: spdk_cf_add_iscsi_tgt_node() failed
iscsi_subsystem.c: 984:spdk_iscsi_init: *ERROR*: spdk_iscsi_init_tgt_nodes() failed
subsystem.c: 119:spdk_subsystem_init_next: *ERROR*: Init subsystem iscsi failed


my /usr/local/etc/spdk/iscsi.conf contents:
.....
.....
.....

[Nvme]
TransportID "trtype:PCIe traddr:0000:04:00.0" Nvme0
TransportID "trtype:PCIe traddr:0000:05:00.0" Nvme1

  # If 'Yes', iscsi will automatically unbind the kernel NVMe driver from
  # discovered devices and rebind it to the uio driver.
  UnbindFromKernel Yes
  # The following two arguments allow the user to partition NVMe namespaces
  # into multiple LUNs
  NvmeLunsPerNs 2
  LunSizeInMB 1024
  # The number of attempts per I/O when an I/O fails. Do not include
  # this key to get the default behavior.
  RetryCount 4
  # The maximum number of NVMe controllers to claim. Do not include this key to
  # claim all of them.
  #NumControllers 1


[TargetNode1]
#  Comment "Disk 1"
  TargetName disk1
  TargetAlias "Data Disk1"
  Mapping PortalGroup1 InitiatorGroup1
  AuthMethod Auto
  AuthGroup AuthGroup1
  UseDigest Auto
  LUN0 Nvme0
  LUN1 Nvme1
QueueDepth 128


My systems has these devices before I ran scripts/setup.sh
[root(a)host1]# ls -l /dev/*nv*
crw------- 1 root root 248,   0 Jun 30 11:44 /dev/nvme0
brw-rw---- 1 root disk 259,   0 Jun 30 11:44 /dev/nvme0n1
crw------- 1 root root 248,   1 Jun 30 11:44 /dev/nvme1
brw-rw---- 1 root disk 259,   1 Jun 30 11:44 /dev/nvme1n1
crw------- 1 root root  10, 144 Jun 29 18:31 /dev/nvram







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Re: [SPDK] tgt_node.c: 700:spdk_iscsi_tgt_node_construct: *ERROR*: Could not construct SCSI device

[Isaac Otsiabah]

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Found the problem, I think.

From: SPDK [mailto:spdk-bounces(a)lists.01.org] On Behalf Of Isaac Otsiabah
Sent: Friday, June 30, 2017 11:34 AM
To: 'spdk(a)lists.01.org' <spdk(a)lists.01.org>
Subject: [SPDK] tgt_node.c: 700:spdk_iscsi_tgt_node_construct: *ERROR*: Could not construct SCSI device


I have  tested with the "./app/iscsi_tgt/iscsi_tgt   -m 0x101" many times but now I am getting this error on both of my test systems. Something has changed?

tgt_node.c: 700:spdk_iscsi_tgt_node_construct: *ERROR*: Could not construct SCSI device
tgt_node.c: 966:spdk_cf_add_iscsi_tgt_node: *ERROR*: tgt_node1: add_iscsi_target_node error
tgt_node.c: 992:spdk_iscsi_init_tgt_nodes: *ERROR*: spdk_cf_add_iscsi_tgt_node() failed
iscsi_subsystem.c: 984:spdk_iscsi_init: *ERROR*: spdk_iscsi_init_tgt_nodes() failed
subsystem.c: 119:spdk_subsystem_init_next: *ERROR*: Init subsystem iscsi failed


my /usr/local/etc/spdk/iscsi.conf contents:
.....
.....
.....

[Nvme]
TransportID "trtype:PCIe traddr:0000:04:00.0" Nvme0
TransportID "trtype:PCIe traddr:0000:05:00.0" Nvme1

  # If 'Yes', iscsi will automatically unbind the kernel NVMe driver from
  # discovered devices and rebind it to the uio driver.
  UnbindFromKernel Yes
  # The following two arguments allow the user to partition NVMe namespaces
  # into multiple LUNs
  NvmeLunsPerNs 2
  LunSizeInMB 1024
  # The number of attempts per I/O when an I/O fails. Do not include
  # this key to get the default behavior.
  RetryCount 4
  # The maximum number of NVMe controllers to claim. Do not include this key to
  # claim all of them.
  #NumControllers 1


[TargetNode1]
#  Comment "Disk 1"
  TargetName disk1
  TargetAlias "Data Disk1"
  Mapping PortalGroup1 InitiatorGroup1
  AuthMethod Auto
  AuthGroup AuthGroup1
  UseDigest Auto
  LUN0 Nvme0
  LUN1 Nvme1
QueueDepth 128


My systems has these devices before I ran scripts/setup.sh

[root(a)host1]# ls -l /dev/*nv*
crw------- 1 root root 248,   0 Jun 30 11:44 /dev/nvme0
brw-rw---- 1 root disk 259,   0 Jun 30 11:44 /dev/nvme0n1
crw------- 1 root root 248,   1 Jun 30 11:44 /dev/nvme1
brw-rw---- 1 root disk 259,   1 Jun 30 11:44 /dev/nvme1n1
crw------- 1 root root  10, 144 Jun 29 18:31 /dev/nvram







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