Skylight—a window on shingled disk operation

A Aghayev, M Shafaei, P Desnoyers - ACM Transactions on Storage …, 2015 - dl.acm.org
We introduce Skylight, a novel methodology that combines software and hardware
techniques to reverse engineer key properties of drive-managed Shingled Magnetic …

GearDB: A GC-free key-value store on HM-SMR drives with gear compaction

T Yao, J Wan, P Huang, Y Zhang, C **e… - Proceedings of the ACM …, 2023 - dl.acm.org
Host-managed shingled magnetic recording drives (HM-SMR)[2] give a capacity advantage
to harness the explosive growth of data. Applications where data is sequentially written and …

Storage system having a host that manages physical data locations of a storage device

D Hashimoto - US Patent 10,101,939, 2018 - Google Patents
A storage system includes a storage device including a controller and a nonvolatile memory
unit, and a host including a processor configured to determine whether or not the host is …

{SMaRT}: An Approach to Shingled Magnetic Recording Translation

W He, DHC Du - 15th USENIX Conference on File and Storage …, 2017 - usenix.org
Shingled Magnetic Recording (SMR) is a new technique for increasing areal data density in
hard drives. Drivemanaged SMR (DM-SMR) drives employ a shingled translation layer to …

{SMRSTORE}: A Storage Engine for Cloud Object Storage on {HM-SMR} Drives

S Zhou, E Xu, H Wu, Y Du, J Cui, W Fu, C Liu… - … USENIX Conference on …, 2023 - usenix.org
Cloud object storage vendors are always in pursuit of better cost efficiency. Emerging
Shingled Magnetic Recording (SMR) drives are becoming economically favorable in …

Evolving ext4 for shingled disks

A Aghayev, T Ts'o, G Gibson, P Desnoyers - 15th USENIX Conference …, 2017 - usenix.org
Drive-Managed SMR (ShingledMagnetic Recording) disks offer a plug-compatible higher-
capacity replacement for conventional disks. For non-sequential workloads, these disks …

RAIZN: Redundant array of independent zoned namespaces

T Kim, J Jeon, N Arora, H Li, M Kaminsky… - Proceedings of the 28th …, 2023 - dl.acm.org
Zoned Namespace (ZNS) SSDs are the latest evolution of host-managed flash storage,
enabling improved performance at a lower cost-per-byte than traditional block interface …

Pattern matching with swaps

A Amir, Y Aumann, GM Landau, M Lewenstein… - Journal of …, 2000 - Elsevier
Let a text string T of n symbols and a pattern string P of m symbols from alphabet Σ be given.
A swapped version T′ of T is a length n string derived from T by a series of local swaps (ie …

Performance evaluation of host aware shingled magnetic recording (HA-SMR) drives

F Wu, Z Fan, MC Yang, B Zhang, X Ge… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
Shingled Magnetic Recording (SMR) drives can benefit large-scale storage systems by
reducing the Total Cost of Ownership (TCO) of dealing with explosive data growth. Among …

Building GC-free key-value store on HM-SMR drives with ZoneFS

Y Zhang, T Yao, J Wan, C **e - ACM Transactions on Storage (TOS), 2022 - dl.acm.org
Host-managed shingled magnetic recording drives (HM-SMR) are advantageous in capacity
to harness the explosive growth of data. For key-value (KV) stores based on log-structured …