FreeBSD Iscsi with zfs

 

2. Configurare ZFS:

Create s ZFS pool and data set (zvol) to serve as iSCSI volume. For example to create o pool name mypool and zvol named myzvol:

sudo zpool create mypool /dev/ada0 
sudo zfs create -V 100G mypool/myzvol
After that we need to install istgt
pkg install istgt
In my case will use following config files:
auth.conf
#[AuthGroup1]
  Comment "Group for the Test Disk"
  Auth "iqn.1991-05.com.microsoft:vm111wdc.test.soft:testdisk"  "between12and16" 
[AuthGroup9999]
  Comment "Group for discovery"
  Auth "iqn.1991-05.com.microsoft:vm111wdc.test.soft"  "discovermenow"

#
[AuthGroup10000]
#  Comment "Group for unit controller"
#  Auth "ctluser" "test" "mutualuser" "mutualsecret"
istgt.conf

[Global]
  Comment "Global section"
  NodeBase "iqn.1991-05.com.microsoft:vm111wdc.test.soft"
#  DiscoveryAuthMethod CHAP
#  DiscoveryAuthGroup AuthGroup9999

  #The following values were not editied
  PidFile /var/run/istgt.pid
#  AuthFile /usr/local/etc/istgt/auth.conf
  MediaDirectory /var/istgt
  LogFacility "local7"

  Timeout 30
  NopInInterval 20

  MaxSessions 16
  MaxConnections 4
  MaxR2T 32
  MaxOutstandingR2T 16
  DefaultTime2Wait 2
  DefaultTime2Retain 60
  FirstBurstLength 262144
  MaxBurstLength 1048576
  MaxRecvDataSegmentLength 262144
  InitialR2T Yes
  ImmediateData Yes
  DataPDUInOrder Yes
  DataSequenceInOrder Yes
  ErrorRecoveryLevel 0

#Unit controller
[UnitControl]
  Comment "Internal Logical Unit Controller"
#  AuthMethod CHAP Mutual
#  AuthGroup AuthGroup10000
  Portal UC1 127.0.0.1:3261
  Netmask 127.0.0.1

#Portal of the Test Disk
[PortalGroup1]
  Comment "SINGLE PORT TEST"
  Portal DA1 10.100.200.109:3260

#Initiators for the Test Disk
[InitiatorGroup1]
  Comment "Initiator Group1"
  InitiatorName "iqn.1991-05.com.microsoft:vm111wdc.test.soft"
  Netmask 10.100.200.0/24

#Test Disk
[LogicalUnit1]
  Comment "Test Disk"
  TargetName testdisk
  TargetAlias "ISCSI Test Disk"
  Mapping PortalGroup1 InitiatorGroup1
#  AuthMethod CHAP
#  AuthGroup AuthGroup1

  ReadOnly No
  UnitType Disk
  UnitOnline Yes

  UseDigest Auto
#  UnitType Pass

LUN0 Storage /dev/zvol/storage/storage 26T


istgtcontrol.conf


[Global] 
 Comment "Sample Configuration" 
 Timeout 60 
 AuthMethod CHAP Mutual 
 Auth "ctluser" "test" "mutualuser" "mutualsecret" 
 Host localhost
  Port 3261 
 TargetName "iqn.1991-05.com.microsoft:vm111wdc.test.soft" 
 Lun 0 
 Flags "ro" 
 Size "auto"