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Gleb Chesnokov
1bc3f178e7
README.dlm embeds a 2015 Pacemaker recipe that disables quorum and
fencing. README.drbd also says persistent reservation state is never
shared between nodes. The first is unsafe for shared storage and the
second contradicts the current cluster_mode implementation.
Commit 6420070cb9 ("scst: Synchronize persistent reservation
state between cluster nodes") added DLM-backed reservation
synchronization. The current contract lives in scst_dlm.c and
scst_pres.c, while fencing and resource-manager policy remain
outside SCST.
Replace the fixed Pacemaker commands with DLM dependencies and startup
and shutdown ordering. Require fencing, describe cluster_mode, retain
the DRBD protocol C requirement and leave multipath policy to the
installed initiator stack.
Overview
This is the source code repository of the SCST project. SCST is a collection of Linux kernel drivers that implement SCSI target functionality. The SCST project includes:
- The SCST core in the scst/ subdirectory.
- A tool for loading, saving and modifying the SCST configuration in directory scstadmin/.
- Several SCSI target drivers in the directories iscsi-scst/, qla2x00t-32gbit/, qla2x00t/, srpt/, scst_local/ and fcst/.
- User space programs in the usr/ subdirectory, e.g. fileio_tgt.
- Various documentation in the doc/ subdirectory.
Instructions for building and installing SCST are available in the INSTALL.md file.
QLogic target driver
Two QLogic target drivers are included in the SCST project.
The default driver is located in the qla2x00t-32gbit directory. It is the newer one.
May anyone wish to switch back to the older driver that only supported up to
16 Gb/s adapters, it is located in qla2x00t directory. To make use of the
older driver build scst with environment variable QLA_32GBIT=no set.
Vladislav Bolkhovitin vst@vlnb.net, http://scst.sourceforge.net
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