We present Griffin, a hybrid storage device that uses a hard disk drive (HDD) as a write
cache for a Solid State Device (SSD). Griffin is motivated by two observations: First, HDDs …

Abstract We present Nameless Writes, a new device interface that removes the need for
indirection in modern solid-state storage devices (SSDs). Nameless writes allow the device …

We present nameless writes, a new interface that obviates the need for indirection in modern
solid-state storage devices (SSDs). Nameless writes allow the device to pick the location of …

We introduce split-level I/O scheduling, a new framework that splits I/O scheduling logic
across handlers at three layers of the storage stack: block, system call, and page cache. We …

Disks form the central element of Cloud-based storage, whose demand far outpaces the
considerable rate of innovation in disks. Exponential growth in demand, already in progress …

Fast storage devices are an emerging solution to satisfy data-intensive applications. They
provide high transaction rates for DBMS, low response times for Web servers, instant on …

Recent studies have shown that moderate to high data redundancy exists in primary storage
systems, such as VM-based, enterprise and HPC storage systems, which indicates that the …

A FLUSH command has been used for decades to enforce persistence and ordering of
updates in a storage device. The command forces all the data in the volatile buffer to non …

Zoned Namespace (ZNS) defines a new abstraction for host software to flexibly manage
storage in flash-based SSDs as append-only zones. It also provides a Zone Append …

We introduce manylogs, a simple and novel concept of logging that deploys many scattered
logs on disk such that small random writes can be appended into any log near the current …