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Full Program

Keynote Talks

Storage Research in an Open Cloud
Orran Krieger (Boston University)
[Abstract], [Speaker Bio], [Slides], [Q&A]

While cloud computing is transforming society, today's public clouds are black boxes, implemented and operated by a single provider that makes all business and technology decisions. In 2014 we launched the Mass Open Cloud (MOC) with the vision of creating a production cloud that would enable innovation by a broad industry and research community. This open cloud has become a laboratory for cloud research and innovation, resulting in 100s of publications, contributions to open source software, and collaborations between researchers, open source developers, and production operations staff. This talk will discuss some of the storage research and initiatives that have gone on in the MOC ecosystem, our future directions, and some of the demands we see on storage going forward.


Orran Krieger is a Professor in the Department of Electrical and Computer Engineering at Boston University. Despite an ongoing effort to focus on research and avoid responsibility, he is the Co-Director of the Red Hat Collaboratory@BU and is involved in a set of interrelated Open Cloud projects, including the Mass Open Cloud (MOC), Open Research Cloud Initiative (ORCI), and Open Cloud Testbed (OCT). Before coming to BU as a Fellow of the Hariri Institute for Computing, he spent five years at VMware starting and working on vCloud. Prior to that, he was a researcher and manager at IBM T. J. Watson, leading the Advanced Operating System Research Department, working on the K42 operating system and contributing to projects like PHYP, Cell, PERCS, rHype, Linux, sHype and even contributing a couple of instructions to the Power architecture. Orran obtained his PhD and MASc degrees in Electrical Engineering at the University of Toronto where he worked on the Hurricane and Tornado Operating Systems and the Hector and NUMAchine multiprocessors.


08:00 Breakfast
08:45 Opening remarks
09:00 Session 1: Caching
10:00 Coffee break
10:20 Session 2: Devices and interfaces
12:20 Lunch
13:30 Keynote by Orran Krieger
14:30 Session 3: Application-aware storage
15:30 Coffee break
16:00 Session 4: File systems
17:40 Closing remarks


Session 1: Caching (09:00am to 10:00am ET)
Session Chairs: Avani Wildani (Cloudflare)

Cache in Hand: Expander-Driven CXL Prefetcher for Next Generation CXL-SSD
[Paper] [Slides]
Miryeong Kwon, Sangwon Lee, Myoungsoo Jung, Panmnesia and KAIST

P2Cache: An Application-Directed Page Cache for Improving Performance of Data-Intensive Applications
[Paper] [Slides]
Dusol Lee, Inhyuk Choi, Chanyoung Lee, Seoul National University; Sungjin Lee, DGIST; Jihong Kim, Seoul National University

When Caching Systems Meet Emerging Storage Devices: A Case Study
[Paper] [Slides]
Zhen Lin, University of New York at Binghamton; Lianjie Cao, Faraz Ahmed, Hewlett Packard Labs; Hui Lu, State University of New York at Binghamton; Puneet Sharma, Hewlett Packard Labs

Session 2: Devices and interfaces (10:20 to 12:20 ET)
Session Chairs: Gala Yadgar (Technion)

Do we still need IO schedulers for low-latency disks?
[Paper] [Slides]
Caeden Whitaker, Sidharth Sundar, Bryan Harris, Nihat Altiparmak, University of Louisville

Deep Note: Can Acoustic Interference Damage the Availability of Hard Disk Storage in Underwater Data Centers?
[Paper] [Slides]
SK Hynix Best Paper Award Winner!
Jennifer Sheldon, Weidong Zhu, Adnan Abdullah, Kevin Butler, Md Jahidul Islam, Sara Rampazzi, University of Florida

Energy Implications of IO Interface Design Choices
[Paper] [Slides]
Sidharth Sundar, William Simpson, Jacob Higdon, Caeden Whitaker, Bryan Harris, Nihat Altiparmak, University of Louisville

Excessive SSD Internal Parallelism Considered Harmful
[Paper] [Slides]
Xiangqun Zhang, Syracuse University; Shuyi Pei, Samsung; Jongmoo Choi, Dankook University; Bryan S. Kim, Syracuse University

A Study of Invalid Programming in 3D QLC NAND Flash Memories
[Paper] [Slides]
Hongyang Dang, Xiangyu Yao, Zheng Wan, Qiao Li, Xiamen University

Hide-and-Seek: Hiding Secrets in Threshold Voltage Distributions of NAND Flash Memory Cells
[Paper] [Slides]
Md Raquibuzzaman, Aleksandar Milenkovic, Biswajit Ray, The University of Alabama in Huntsville

Session 3: Application-aware storage (14:30 to 15:30 ET)
Session Chairs: Mania Abdi (Google)

Neural Cloud Storage: Innovative Cloud Storage Solution for Cold Video
[Paper] [Slides]
Jinyeong Lim, Juncheol Ye, Jaehong Kim, Hwijoon Lim, Hyunho Yeo, Dongsu Han, KAIST

NeSSA: Near-Storage Data Selection for Accelerated Machine Learning Training
[Paper] [Slides]
Neha Prakriya, Yu Yang, Baharan Mirzasoleiman, Cho-Jui Hsieh, Jason Con, UCLA

SAND: A Storage Abstraction for Video-based Deep Learning
[Paper] [Slides]
Uitaek Hong, Hwijoon Lim, Hyunho Yeo, Jinwoo Park, Dongsu Han, KAIST

Session 4: File systems (16:00 to 17:40 ET)
Session Chairs: Ningfang Mi (Northeastern University)

When F2FS Meets Compression-Based SSD!
[Paper] [Slides]
Yunpeng Song, Yiyang Huang, Yina Lv, Yi Zhang, Liang Shi, East China Normal University

Input and Output Coverage Needed in File System Testing
[Paper] [Slides]
Yifei Liu, Gautam Ahuja, Stony Brook University; Geoff Kuenning, Harvey Mudd College; Scott Smolka, Erez Zadok, Stony Brook University

Is Garbage Collection Overhead Gone? Case study of F2FS on ZNS SSDs
[Paper] [Slides]
Dongjoo Seo, Ping-Xiang Chen, University of California, Irvine; Huaicheng Li, Virginia Tech; Matias Bjorling, Western Digital; Nikil Dutt, University of California, Irvine

A Free-Space Adaptive Runtime Zone-Reset Algorithm for Enhanced ZNS Efficiency
[Paper] [Slides]
Sungjin Byeon, Joseph Ro, Safdar Jamil, Sogang University, Seoul; Jeong-Uk Kang, Samsung Electronics Co., Ltd.; Youngjae Kim, Sogang University, Seoul

An Efficient Order-Preserving Recovery for F2FS with ZNS SSD
[Paper] [Slides]
Euidong Lee, Ikjoon Son, Jin-Soo Kim, Seoul National University