4/24/2023 0 Comments Shadow openzfs![]() ![]() ![]() The ARC dynamically shares DRAM capacity among all currently imported zpools. We will also discuss other prototypes to further increase ZFS's capabilities in multi-tenant and container environments. This enabled the sponsoring SaaS provider to support Docker’s native ZFS support from within per-customer containers, without exposing any other datasets. Klara recently completed integration of Linux Namespace delegation support, providing ZFS capabilities similar to FreeBSD Jails and Solaris Zones, to delegate a dataset to a container, where it can be managed by the owner of that container. The operators of these pools need to be able to manage, measure, and control how the pool and its resources. No longer are pools the domain of a single enterprises’ IT department but are often the storage fabric underpinning services provided to an array of different customers. ZFS is increasing being adopted by SaaS and cloud providers, however these new use cases bring into focus the need for more features to support multi-tenant use cases. In this talk I will give an overview of CHERI, explain why porting is required, and propose possible methods for integration into the OpenZFS codebase.Įnabling Storage Multi-Tenancy With ZFS For Containers (Allan Jude) Unfortunately, the management interface contains some assumptions that don’t hold in a CHERI world and required porting. With real hardware to run CheriBSD on, we naturally wanted ZFS support and have made an initial port of OpenZFS to CHERI C/C++.įor the most part, OpenZFS is clean, modern C, and thus Just Works™ with CHERI C/C++. CheriBSD uses the CHERI architectural extensions to provide spatial and referential safety in C and C++ programs. The Arm Morello platform provides a performant desktop or server demonstration platform that runs CheriBSD, our CHERI-aware port of FreeBSD. 7 Refining OpenZFS Compression – a couple things that worked, and many that didn’t (Rich Ercolani)ĬHERI memory safety and ZFS (Brooks Davis).6 Block Cloning for OpenZFS (Pawel Dawidek).5 Faster ZFS scrub and other improvements (Alexander Motin).4 Operating OpenZFS at scale (Satabdi Das).2 Enabling Storage Multi-Tenancy With ZFS For Containers (Allan Jude).1 CHERI memory safety and ZFS (Brooks Davis).
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