NAME

       ocf_heartbeat_iSCSILogicalUnit - Manages iSCSI Logical Units (LUs)

SYNOPSIS

       iSCSILogicalUnit [start | stop | status | monitor | meta-data | validate-all]

DESCRIPTION

       Manages iSCSI Logical Unit. An iSCSI Logical unit is a subdivision of an SCSI Target,
       exported via a daemon that speaks the iSCSI protocol.

SUPPORTED PARAMETERS

       implementation
           The iSCSI target daemon implementation. Must be one of "iet", "tgt", "lio", or
           "lio-t". If unspecified, an implementation is selected based on the availability of
           management utilities, with "iet" being tried first, then "tgt", then "lio", then
           "lio-t".

           (optional, string, no default)

       target_iqn
           The iSCSI Qualified Name (IQN) that this Logical Unit belongs to.

           (required, string, no default)

       lun
           The Logical Unit number (LUN) exposed to initiators.

           (required, integer, no default)

       path
           The path to the block device exposed. Some implementations allow this to be a regular
           file, too.

           (required, string, no default)

       scsi_id
           The SCSI ID to be configured for this Logical Unit. The default is the resource name,
           truncated to 24 bytes.

           (unique, optional, string, default "default")

       scsi_sn
           The SCSI serial number to be configured for this Logical Unit. The default is a hash
           of the resource name, truncated to 8 bytes.

           (unique, optional, string, default "c21f969b")

       vendor_id
           The SCSI vendor ID to be configured for this Logical Unit.

           (optional, string, no default)

       product_id
           The SCSI product ID to be configured for this Logical Unit.

           (optional, string, no default)

       tgt_bstype
           TGT specific backing store type. If you want to use aio, make sure your tgtadm is
           built against libaio. See tgtadm(8).

           (optional, string, no default)

       tgt_bsoflags
           TGT specific backing store open flags (direct|sync). See tgtadm(8).

           (optional, string, no default)

       tgt_device_type
           TGT specific device type. See tgtadm(8).

           (optional, string, no default)

       additional_parameters
           Additional LU parameters. A space-separated list of "name=value" pairs which will be
           passed through to the iSCSI daemon's management interface. The supported parameters
           are implementation dependent. Neither the name nor the value may contain whitespace.

           (optional, string, no default)

       allowed_initiators
           Allowed initiators. A space-separated list of initiators allowed to connect to this
           lun. Initiators may be listed in any syntax the target implementation allows. If this
           parameter is empty or not set, access to this lun will not be allowed from any
           initiator, if target is not in demo mode.

           This parameter is only necessary when using LIO.

           (optional, string, no default)

       lio_iblock
           LIO iblock device name, a number starting from 0.

           Using distinct values here avoids a warning in LIO "LEGACY: SHARED HBA"; and it is
           necessary when using multiple LUNs started at the same time (eg. on node failover) to
           prevent a race condition in tcm_core on mkdir() in /sys/kernel/config/target/core/.

           (optional, integer, default 0)

SUPPORTED ACTIONS

       This resource agent supports the following actions (operations):

       start
           Starts the resource. Suggested minimum timeout: 10.

       stop
           Stops the resource. Suggested minimum timeout: 10.

       status
           Performs a status check. Suggested minimum timeout: 10. Suggested interval: 10.

       monitor
           Performs a detailed status check. Suggested minimum timeout: 10. Suggested interval:
           10.

       meta-data
           Retrieves resource agent metadata (internal use only). Suggested minimum timeout: 5.

       validate-all
           Performs a validation of the resource configuration. Suggested minimum timeout: 10.

EXAMPLE CRM SHELL

       The following is an example configuration for a iSCSILogicalUnit resource using the crm(8)
       shell:

           primitive p_iSCSILogicalUnit ocf:heartbeat:iSCSILogicalUnit \
             params \
               target_iqn=string \
               lun=integer \
               path=string \
             op monitor timeout="10" interval="10" depth="0"

EXAMPLE PCS

       The following is an example configuration for a iSCSILogicalUnit resource using pcs(8)

           pcs resource create p_iSCSILogicalUnit ocf:heartbeat:iSCSILogicalUnit \
             target_iqn=string \
             lun=integer \
             path=string \
             op monitor timeout="10" interval="10" depth="0"

SEE ALSO

       http://www.linux-ha.org/wiki/iSCSILogicalUnit_(resource_agent)

AUTHOR

       Linux-HA contributors (see the resource agent source for information about individual
       authors)