Jiwu Shu

TapeOBS is an archive storage service offered by Huawei Cloud, which delivers high cost-efficiency by leveraging tape to store large volumes of archived data. Although tape boasts a low total cost of ownership, its inherent characteristics (e.g., a limited number of drives within a tape library)...

System-level GPU checkpoint/restore (C/R) enables several critical features such as elastic scaling, task switching, and fault tolerance, for modern GPU workloads in a unified and application-transparent manner. However, existing approaches present fundamental limitations: they fail to simultaneo...

With the emergence of high-performance storage devices, the overhead of the storage stack has become a major I/O performance bottleneck. To alleviate this problem, a number of express I/O paths have been proposed based on the concept of near-data processing (NDP), such as query I/O resubmission (...

Trusted Execution Environments (TEEs) enable users to run sensitive applications in private memory regions. SGX-PFS is the state-of-the-art secure storage solution for TEEs that ensures data confidentiality, integrity, freshness, and consistency (CIFC). Unfortunately, SGX-PFS uses Merkle Hash Tre...

File synchronization (sync) is of increasing significance for not only intra-cloud but also inter-cloud applications and services, as cloud computing is evolving into the Sky computing paradigm with the illusion of utility computing on an infrastructure of multiple geographically-distributed clou...

File synchronization (sync) based on Content-Defined Chunking (CDC) is gaining increasing importance for data migration over networks owing to its effectiveness in detecting and eliminating duplicate data within synchronized files. CDC-based sync schemes typically comprise three phases: file chun...

ByteStore is a distributed append-only storage system that serves as the foundational storage layer of the ByteDance infrastructure. Initially, storage services on ByteStore use compaction for garbage collection (GC). Additional writes induced by compaction and the SSD space occupied by stale dat...