TY - GEN
T1 - Kurma
T2 - 12th ACM International Systems and Storage Conference, SYSTOR 2019
AU - Chen, Ming
AU - Zadok, Erez
N1 - Publisher Copyright:
© 2019 Association for Computing Machinery.
PY - 2019/5/22
Y1 - 2019/5/22
N2 - Cloud storage is highly available, scalable, and cost-efficient. Yet, many cannot store data in cloud due to security concerns and legacy infrastructure such as network-attached storage (NAS). We describe Kurma, a cloud storage gateway system that allows NAS-based programs to seamlessly and securely access cloud storage. To share files among distant clients, Kurma maintains a unified file-system namespace by replicating metadata across geo-distributed gateways. Kurma stores only encrypted data blocks in clouds, keeps file-system and security metadata on-premises, and can verify data integrity and freshness without any trusted third party. Kurma uses multiple clouds to prevent cloud outage and vendor lock-in. Kurma’s performance is 52–91% that of a local NFS server while providing geo-replication, confidentiality, integrity, and high availability.
AB - Cloud storage is highly available, scalable, and cost-efficient. Yet, many cannot store data in cloud due to security concerns and legacy infrastructure such as network-attached storage (NAS). We describe Kurma, a cloud storage gateway system that allows NAS-based programs to seamlessly and securely access cloud storage. To share files among distant clients, Kurma maintains a unified file-system namespace by replicating metadata across geo-distributed gateways. Kurma stores only encrypted data blocks in clouds, keeps file-system and security metadata on-premises, and can verify data integrity and freshness without any trusted third party. Kurma uses multiple clouds to prevent cloud outage and vendor lock-in. Kurma’s performance is 52–91% that of a local NFS server while providing geo-replication, confidentiality, integrity, and high availability.
KW - Cloud storage gateways
KW - Multi-cloud
KW - Storage security
UR - https://www.scopus.com/pages/publications/85067122100
U2 - 10.1145/3319647.3325830
DO - 10.1145/3319647.3325830
M3 - Conference contribution
AN - SCOPUS:85067122100
T3 - SYSTOR 2019 - Proceedings of the 12th ACM International Systems and Storage Conference
SP - 109
EP - 120
BT - SYSTOR 2019 - Proceedings of the 12th ACM International Systems and Storage Conference
PB - Association for Computing Machinery, Inc
Y2 - 3 June 2019 through 5 June 2019
ER -