Sheepdog enables to make a scalable and reliable storage system with using IA servers. Sheepdog provides many access heads, Qemu, iSCSI, ObjectStorage, Cloud Systems use it as a unified storage. Sheepdog has been developed for improving reliability and stability. So we can use Sheepdog for more critical systems and now is ready for commercial use! In this talk, the recent results of development are presented. Remarkable results are:
- iSCSI multipath: Sheepdog has introduced the algorithm for managing state of tgtd's connections. Now iSCSI multipath with active-backup is supported and tgtd isn't a SPOF.
- Improved GC implementation: Sheepdog couldn't track complicated snapshot relations, so data objects of deleted volumes sometimes remained falsely. Now disk consumption of deleted volume are dramatically reduced.
In addition, performance tests with SSD are presented.
