This error usually indicates that you are successfully connecting to your SAN target, but the SAN disk you are trying to access is not available.

Things you can try:

  * Check that the SAN disk is online and enabled.
  * If you have specified a LUN as part of an [[:sanuri#iscsi|iSCSI root path]], check that you have used a correctly formatted hexadecimal (not decimal) value.
  * Note that the default configuration when Linux is the target is for the disk to be LUN 1.  For example, use "iscsi:iscsi.example.com:::1:iqn.1992-01.com.example.iscsi:target" instead of  "iscsi:iscsi.example.com::::iqn.1992-01.com.example.iscsi:target".  On your Linux iSCSI target, "tgtadm --lld iscsi --op show --mode target" will show you details of each target.
  * If your target is Linux-IO (LIO/targetcli) the default LUN number is 0 instead of 1.
See also [[:err:1d704239|error 0x1d704239]].