NAME

       iscsi — iSCSI initiator

SYNOPSIS

       To compile this driver into the kernel, place the following line in the kernel configuration file:

             device iscsi

       Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

             iscsi_load="YES"

DESCRIPTION

       The iscsi subsystem provides the kernel component of an iSCSI initiator, responsible for implementing the
       Full  Feature Phase of the iSCSI protocol.  The initiator is the iSCSI client, which connects to an iSCSI
       target, providing local access to a remote block device.  The userland component is provided by iscsid(8)
       and both the kernel and userland are configured using iscsictl(8).

SYSCTL VARIABLES

       The following variables are available as both sysctl(8) variables and loader(8) tunables:

       kern.iscsi.debug
               Verbosity level for log messages from the iscsi driver.  Set to 0 to disable logging or 1 to warn
               about potential problems.  Larger values enable debugging output.  Defaults to 1.

       kern.iscsi.ping_timeout
               The number of seconds to wait for the target to respond to a NOP-Out  PDU.   In  the  event  that
               there  is  no response within that time the session gets forcibly restarted.  Set to 0 to disable
               sending NOP-Out PDUs.  Defaults to 5.

       kern.iscsi.iscsid_timeout
               The number of seconds to wait for iscsid(8) to establish a session.  After that time  iscsi  will
               abort and retry.  Defaults to 60.

       kern.iscsi.login_timeout
               The  number  of seconds to wait for a login attempt to succeed.  After that time iscsi will abort
               and retry.  Defaults to 60.

       kern.iscsi.maxtags
               The maximum number of outstanding IO requests.  Defaults to 255.

       kern.iscsi.fail_on_disconnection
               Controls the behavior after an iSCSI connection has been dropped due to network  problems.   When
               set  to  1,  a  dropped  connection  causes  the  iSCSI  device  nodes  to  be  destroyed.  After
               reconnecting, they will be created again.  By default, the device nodes are left  intact.   While
               the  connection  is  down  all  input/output  operations  are  suspended, to be retried after the
               connection is reestablished.

SEE ALSO

       iser(4), iscsi.conf(5), iscsictl(8), iscsid(8)

HISTORY

       The iscsi subsystem first appeared in FreeBSD 10.0.

AUTHORS

       The iscsi subsystem was developed by Edward Tomasz Napierala <trasz@FreeBSD.org> under  sponsorship  from
       the FreeBSD Foundation.

Debian                                            May 28, 2017                                          ISCSI(4)