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(sometimes called storage head) this patch makes it possible to tell the initiator which port to use. Since that information can be specified per LUN, with this patch it is not only possible to tell the initiator which path to choose but also to balance the load over target ports. Target port attributes can not only be defined for target ports that exist on the system on which SCST is running but also for target ports present on other nodes of the same HA setup. As far as I know this feature is unique among open source storage target implementations. Note: with this patch SCSI target port attributes can be defined for each LUN defined on each SCST target individually. Such an SCST target is either a physical entity (e.g. a HCA for the ib_srpt driver) or a logical entity (e.g. an iSCSI target for the iscsi_scst driver). In the last case it is up to the user to make sure that there is a one-to-one relationship between SCST target and SCSI target port. This patch is based on the specifications in the ANSI T10 spc4r30 document. Signed-off-by: Bart Van Assche <bvanassche@acm.org> git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@3446 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This is the SCST development repository. It contains not a single project SCST as one can think, but a number of them, which are divided as the following: 1. SCST core in scst/ subdirectory 2. Administration utility for SCST core scstadmin in scstadmin/ 3. Target drivers in own subdirectories qla2x00t/, iscsi-scst/, etc. 4. User space programs in usr/ subdirectory, like fileio_tgt. 5. Some various docs in doc/ subdirectory. Those subprojects are in most cases independent from each other, although some of them depend from the SCST core. They put in the single repository only to simplify their development, they are released independently. Thus, use "make all" only if you really need to build everything. Otherwise build only what you need, like for iSCSI-SCST: make scst scst_install iscsi iscsi_install For more information about each subproject see their README files. Vladislav Bolkhovitin <vst@vlnb.net>, http://scst.sourceforge.net