106 lines
4.8 KiB
Markdown
106 lines
4.8 KiB
Markdown
# Vitastor
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[Читать на русском](README-ru.md)
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## The Idea
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Make Clustered Block Storage Fast Again.
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Vitastor is a distributed block and file SDS, direct replacement of Ceph RBD and CephFS,
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and also internal SDS's of public clouds. However, in contrast to them, Vitastor is fast
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and simple at the same time. The only thing is it's slightly young :-).
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Vitastor is architecturally similar to Ceph which means strong consistency,
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primary-replication, symmetric clustering and automatic data distribution over any
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number of drives of any size with configurable redundancy (replication or erasure codes/XOR).
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Vitastor targets primarily SSD and SSD+HDD clusters with at least 10 Gbit/s network,
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supports TCP and RDMA and may achieve 4 KB read and write latency as low as ~0.1 ms
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with proper hardware which is ~10 times faster than other popular SDS's like Ceph
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or internal systems of public clouds.
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Vitastor supports QEMU, NBD, NFS protocols, OpenStack, OpenNebula, Proxmox, Kubernetes drivers.
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More drivers may be created easily.
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Read more details in the documentation. You can start from here: [Quick Start](docs/intro/quickstart.en.md).
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## Talks and presentations
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- DevOpsConf'2021: presentation ([in Russian](https://vitastor.io/presentation/devopsconf/devopsconf.html),
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[in English](https://vitastor.io/presentation/devopsconf/devopsconf_en.html)),
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[video](https://vitastor.io/presentation/devopsconf/talk.webm)
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- Highload'2022: presentation ([in Russian](https://vitastor.io/presentation/highload/highload.html)),
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[video](https://vitastor.io/presentation/highload/talk.webm)
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## Documentation
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- Introduction
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- [Quick Start](docs/intro/quickstart.en.md)
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- [Features](docs/intro/features.en.md)
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- [Architecture](docs/intro/architecture.en.md)
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- [Author and license](docs/intro/author.en.md)
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- Installation
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- [Packages](docs/installation/packages.en.md)
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- [Proxmox](docs/installation/proxmox.en.md)
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- [OpenNebula](docs/installation/opennebula.en.md)
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- [OpenStack](docs/installation/openstack.en.md)
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- [Kubernetes CSI](docs/installation/kubernetes.en.md)
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- [Building from Source](docs/installation/source.en.md)
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- Configuration
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- [Overview](docs/config.en.md)
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- Parameter Reference
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- [Common](docs/config/common.en.md)
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- [Network](docs/config/network.en.md)
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- [Client](docs/config/client.en.md)
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- [Global Disk Layout](docs/config/layout-cluster.en.md)
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- [OSD Disk Layout](docs/config/layout-osd.en.md)
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- [OSD Runtime Parameters](docs/config/osd.en.md)
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- [Monitor](docs/config/monitor.en.md)
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- [Pool configuration](docs/config/pool.en.md)
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- [Image metadata in etcd](docs/config/inode.en.md)
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- Usage
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- [vitastor-cli](docs/usage/cli.en.md) (command-line interface)
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- [vitastor-disk](docs/usage/disk.en.md) (disk management tool)
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- [fio](docs/usage/fio.en.md) for benchmarks
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- [NBD](docs/usage/nbd.en.md) for kernel mounts
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- [QEMU and qemu-img](docs/usage/qemu.en.md)
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- [NFS](docs/usage/nfs.en.md) clustered file system and pseudo-FS proxy
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- [Administration](docs/usage/admin.en.md)
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- Performance
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- [Understanding storage performance](docs/performance/understanding.en.md)
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- [Theoretical performance](docs/performance/theoretical.en.md)
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- [Example comparison with Ceph](docs/performance/comparison1.en.md)
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- [Newer benchmark of Vitastor 1.3.1](docs/performance/bench2.en.md)
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## Author and License
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Copyright (c) Vitaliy Filippov (vitalif [at] yourcmc.ru), 2019+
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Join Vitastor Telegram Chat: https://t.me/vitastor
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All server-side code (OSD, Monitor and so on) is licensed under the terms of
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Vitastor Network Public License 1.1 (VNPL 1.1), a copyleft license based on
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GNU GPLv3.0 with the additional "Network Interaction" clause which requires
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opensourcing all programs directly or indirectly interacting with Vitastor
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through a computer network and expressly designed to be used in conjunction
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with it ("Proxy Programs"). Proxy Programs may be made public not only under
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the terms of the same license, but also under the terms of any GPL-Compatible
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Free Software License, as listed by the Free Software Foundation.
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This is a stricter copyleft license than the Affero GPL.
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Please note that VNPL doesn't require you to open the code of proprietary
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software running inside a VM if it's not specially designed to be used with
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Vitastor.
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Basically, you can't use the software in a proprietary environment to provide
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its functionality to users without opensourcing all intermediary components
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standing between the user and Vitastor or purchasing a commercial license
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from the author 😀.
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Client libraries (cluster_client and so on) are dual-licensed under the same
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VNPL 1.1 and also GNU GPL 2.0 or later to allow for compatibility with GPLed
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software like QEMU and fio.
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You can find the full text of VNPL-1.1 in the file [VNPL-1.1.txt](VNPL-1.1.txt).
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GPL 2.0 is also included in this repository as [GPL-2.0.txt](GPL-2.0.txt).
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