====== istgtでiSCSI Target ======
iSCSI Target（言い方変えるとiSCSIサーバ）を作る。

すごく単純にLUN0を作成してプライベートな範囲からアクセス可能にする。（ESXiでもこのまま使える。）

===== ファイルを指定してLUNを作るパターン =====
/usr/local/etc/istgt/istgt.conf
<code>
[Global]
  Comment "Global section"
  NodeBase "iqn.2010-01.net.ainoniwa.istgt"

  PidFile /var/run/istgt.pid
  AuthFile /usr/local/etc/istgt/auth.conf

  MediaDirectory /var/istgt

  LogFacility "local7"

  Timeout 30
  NopInInterval 20

  DiscoveryAuthMethod Auto

  MaxSessions 64
  MaxConnections 16

  FirstBurstLength 65536
  MaxBurstLength 262144
  MaxRecvDataSegmentLength 262144

[UnitControl]
  Comment "Internal Logical Unit Controller"
  AuthMethod CHAP Mutual
  AuthGroup AuthGroup10000
  Portal UC1 [::1]:3261
  Portal UC1 127.0.0.1:3261
  Netmask [::1]
  Netmask 127.0.0.1

[PortalGroup1]
  Comment "SINGLE PORT TEST"
  Portal DA1 [2001:380:e08:e7::31]:3260
  Portal DA1 192.168.1.103:3260

[InitiatorGroup1]
  Comment "Initiator Group1"
  InitiatorName "ALL"
  Netmask 192.168.1.0/24
  Netmask [2001:380:e08:e7::]/64

[LogicalUnit1]
  Comment "Hard Disk Sample"
  TargetName disk1
  TargetAlias "Data Disk1"
  Mapping PortalGroup1 InitiatorGroup1
  AuthMethod Auto
  AuthGroup AuthGroup1
  UseDigest Auto
  UnitType Disk
  QueueDepth 32
  LUN0 Storage /mnt/lib_01/OS/iSCSI/esxi-01 20GB
# 複数台のディスクが必要な場合は、LUNXを増やしていけばいい。
# LUN1 Storage /mnt/lib_01/OS/iSCSI/esxi-02 20GB
</code>

/usr/local/etc/istgt/auth.conf
<code>
[AuthGroup1]
  Comment "Auth Group1"
</code>

/usr/local/etc/istgt/istgtcontrol.conf
（特に何か書き換えた記憶が無い。）
<code>
[Global]
  Comment "sample configuration"

  # socket I/O timeout sec.
  Timeout 60

  # authentication information
  #AuthMethod Auto
  AuthMethod CHAP Mutual
  Auth "testuser" "secret" "mutual user" "mutual secret"
  #AuthMethod CHAP
  #Auth "testuser" "secret"

  # default controller's host name or IP and port
  Host localhost
  #Host 192.168.2.36
  Port 3261

  # default target name and LUN
  #TargetName "iqn.xxxx"
  TargetName "iqn.2007-09.jp.ne.peach:dvd1"
  Lun 0

  # removable file's flag, initial size if creating
  # ro: read only, rw: read and write
  # auto: use existing size or minimum size
  Flags "ro"
  Size "auto"
</code>