# iSCSI target configuration file
#
# Please write all parameters using ASCII.
# The parameter must be quoted if it includes whitespace.
#
# Configuration syntax:
# Leading whitespace is ignored.
# Lines starting with '#' are comments.
# Lines ending with '\' are concatenated with the next line.
# Bracketed ([]) names define sections

[Global]
  # Shared Memory Group ID. SPDK applications with the same ID will share memory.
  # Default: <the process PID>
  #SharedMemoryID 0

  # Disable PCI access. PCI is enabled by default. Setting this
  # option will hide any PCI device from all SPDK modules, making
  # SPDK act as if they don't exist.
  #NoPci Yes

  # Tracepoint group mask for spdk trace buffers
  # Default: 0x0 (all tracepoint groups disabled)
  # Set to 0xFFFF to enable all tracepoint groups.
  #TpointGroupMask 0x0

# Users may activate entries in this section to override default values for
# global parameters in the block device (bdev) subsystem.
[Bdev]
  # Number of spdk_bdev_io structures allocated in the global bdev subsystem pool.
  #BdevIoPoolSize 65536

  # Maximum number of spdk_bdev_io structures to cache per thread.
  #BdevIoCacheSize 256

[iSCSI]
  # node name (not include optional part)
  # Users can optionally change this to fit their environment.
  NodeBase "iqn.2016-06.io.spdk"

  AuthFile /usr/local/etc/spdk/auth.conf

  MinConnectionsPerCore 4

  # Socket I/O timeout sec. (0 is infinite)
  Timeout 30

  # authentication information for discovery session
  # Options:
  # None, Auto, CHAP and Mutual.  Note that Mutual infers CHAP.
  DiscoveryAuthMethod Auto

  #MaxSessions 128
  #MaxConnectionsPerSession 2

  # iSCSI initial parameters negotiate with initiators
  # NOTE: incorrect values might crash
  DefaultTime2Wait 2
  DefaultTime2Retain 60

  # Maximum amount in bytes of unsolicited data the iSCSI
  # initiator may send to the target during the execution of
  # a single SCSI command.
  FirstBurstLength 8192

  ImmediateData Yes
  ErrorRecoveryLevel 0

# Users must change the PortalGroup section(s) to match the IP addresses
#  for their environment.
# PortalGroup sections define which network portals the iSCSI target
#  will use to listen for incoming connections.  These are also used to
#  determine which targets are accessible over each portal group.
# Up to 1024 portal directives are allowed.  These define the network
#  portals of the portal group. The user must specify a IP address
#  for each network portal, and may optionally specify a port and
#  a cpumask. If the port is omitted, 3260 will be used. Cpumask will
#  be used to set the processor affinity of the iSCSI connection
#  through the portal.  If the cpumask is omitted, cpumask will be
#  set to all available processors.
#  Syntax:
#    Portal <Name> <IP address>[:<port>[@<cpumask>]]
[PortalGroup1]
  Portal DA1 192.168.2.21:3260
  Portal DA2 192.168.2.22:3260@0xF

# Users must change the InitiatorGroup section(s) to match the IP
#  addresses and initiator configuration in their environment.
# Netmask can be used to specify a single IP address or a range of IP addresses
#  Netmask 192.168.1.20   <== single IP address
#  Netmask 192.168.1.0/24 <== IP range 192.168.1.*
[InitiatorGroup1]
  InitiatorName ANY
  Netmask 192.168.2.0/24

# NVMe configuration options
[Nvme]
  # NVMe Device Whitelist
  # Users may specify which NVMe devices to claim by their transport id.
  # See spdk_nvme_transport_id_parse() in spdk/nvme.h for the correct format.
  # The second argument is the assigned name, which can be referenced from
  # other sections in the configuration file. For NVMe devices, a namespace
  # is automatically appended to each name in the format <YourName>nY, where
  # Y is the NSID (starts at 1).
  TransportID "trtype:PCIe traddr:0000:00:00.0" Nvme0
  TransportID "trtype:PCIe traddr:0000:01:00.0" Nvme1

  # The number of attempts per I/O when an I/O fails. Do not include
  # this key to get the default behavior.
  RetryCount 4
  # Timeout for each command, in microseconds. If 0, don't track timeouts.
  TimeoutUsec 0
  # Action to take on command time out. Only valid when Timeout is greater
  # than 0. This may be 'Reset' to reset the controller, 'Abort' to abort
  # the command, or 'None' to just print a message but do nothing.
  # Admin command timeouts will always result in a reset.
  ActionOnTimeout None
  # Set how often the admin queue is polled for asynchronous events.
  # Units in microseconds.
  AdminPollRate 100000

  # Disable handling of hotplug (runtime insert and remove) events,
  # users can set to Yes if want to enable it.
  # Default: No
  HotplugEnable No

  # Set how often the hotplug is processed for insert and remove events.
  # Units in microseconds.
  HotplugPollRate 0

# Users may change this section to create a different number or size of
#  malloc LUNs.
# If the system has hardware DMA engine, it can use an IOAT
# (i.e. Crystal Beach DMA) channel to do the copy instead of memcpy
# by specifying "Enable Yes" in [Ioat] section.
# Offload is disabled by default even it is available.
[Malloc]
  # Number of Malloc targets
  NumberOfLuns 3
  # Malloc targets are 128M
  LunSizeInMB 128
  # Block size. Default is 512 bytes.
  BlockSize 4096

# Users can use offload by specifying "Enable Yes" in this section
# if it is available.
# Users may use the whitelist to initialize specified devices, IDS
#  uses BUS:DEVICE.FUNCTION to identify each Ioat channel.
[Ioat]
  Enable No
  Whitelist 00:04.0
  Whitelist 00:04.1

# Users must change this section to match the /dev/sdX devices to be
# exported as iSCSI LUNs. The devices are accessed using Linux AIO.
# The format is:
# AIO <file name> <bdev name> [<block size>]
# The file name is the backing device
# The bdev name can be referenced from elsewhere in the configuration file.
# Block size may be omitted to automatically detect the block size of a disk.
[AIO]
  AIO /dev/sdb AIO0
  AIO /dev/sdc AIO1
  AIO /tmp/myfile AIO2 4096

# PMDK libpmemblk-based block device
[Pmem]
  # Syntax:
  #   Blk <pmemblk pool file name> <bdev name>
  Blk /path/to/pmem-pool Pmem0

# The Split virtual block device slices block devices into multiple smaller bdevs.
[Split]
  # Syntax:
  #   Split <bdev> <count> [<size_in_megabytes>]

  # Split Malloc1 into two equally-sized portions, Malloc1p0 and Malloc1p1
  Split Malloc1 2

  # Split Malloc2 into eight 1-megabyte portions, Malloc2p0 ... Malloc2p7,
  # leaving the rest of the device inaccessible
  Split Malloc2 8 1

# Users should change the TargetNode section(s) below to match the
#  desired iSCSI target node configuration.
# TargetName, Mapping, LUN0 are minimum required
[TargetNode1]
  TargetName disk1
  TargetAlias "Data Disk1"
  Mapping PortalGroup1 InitiatorGroup1
  AuthMethod Auto
  AuthGroup AuthGroup1
  # Enable header and data digest
  # UseDigest Header Data
  UseDigest Auto
  # Use the first malloc target
  LUN0 Malloc0
  # Using the first AIO target
  LUN1 AIO0
  # Using the second storage target
  LUN2 AIO1
  # Using the third storage target
  LUN3 AIO2
  QueueDepth 128

[TargetNode2]
  TargetName disk2
  TargetAlias "Data Disk2"
  Mapping PortalGroup1 InitiatorGroup1
  AuthMethod Auto
  AuthGroup AuthGroup1
  UseDigest Auto
  LUN0 Nvme0n1
  QueueDepth 32