This repository provides a customized locking manager that integrates Seagate's In-Drive Mutex (IDM) with lvmlockd. The IDM feature present in Seagate's SSD enforces access at the drive level, revealing a single point of authority that connected hosts can use to check if they have access to data on the drive.
flowchart LR
A[Host] -->|vgcreate, lvcreate, etc| B[LVM2]
B -->|--shared| C[lvmlockd]
C --> D[IDM Lock Manager]
D -->|mutex acquire/release/convert commands| E[STX Drive w/IDM]
src/ contains the source code for the IDM lock manager and the IDM wrapper API lib.
test/ contains the testing harness for the IDM lock manager. This includes smoke tests written in C and unit tests written in Python that utilize the PyTest testing framework.
python/ contains SWIG files used to generate Python wrapper API in support of the test harness located in test/.
doc/ contains the supporting documentation for the project such as building, testing, debugging, etc.
debian/ contains supporting files for generating debian packages for the IDM lock manager.
seagate_ilm.spec is used to build RPM packages for the IDM lock manager.
The IDM lock manager's library and APIs are implemented in C.
See LVM and IDM lock manager installation for details.
See LVM and IDM lock manager debugging for details.
See LVM and IDM lock manager testing for details.