Vitaliy Filippov
a0cae4c180
Old pool configurations with "jerasure" also remain supported as an alias for "ec"
63 lines
2.5 KiB
Markdown
63 lines
2.5 KiB
Markdown
[Documentation](../../README.md#documentation) → Introduction → Features
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-----
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[Читать на русском](features.ru.md)
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# Features
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- [Server-side features](#server-side-features)
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- [Plugins and tools](#plugins-and-tools)
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- [Roadmap](#roadmap)
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## Server-side features
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- Basic part: highly-available block storage with symmetric clustering and no SPOF
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- [Performance](../performance/comparison1.en.md) ;-D
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- [Multiple redundancy schemes](../config/pool.en.md#scheme): Replication, XOR n+1, Reed-Solomon erasure codes
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based on jerasure and ISA-L libraries with any number of data and parity drives in a group
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- Configuration via simple JSON data structures in etcd (parameters, pools and images)
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- Automatic data distribution over OSDs, with support for:
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- Mathematical optimization for better uniformity and less data movement
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- Multiple pools
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- Placement tree, OSD selection by tags (device classes) and placement root
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- Configurable failure domains
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- Recovery of degraded blocks
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- Rebalancing (data movement between OSDs)
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- [Lazy fsync support](../config/layout-cluster.en.md#immediate_commit)
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- Per-OSD and per-image I/O and space usage statistics in etcd
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- Snapshots and copy-on-write image clones
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- [Write throttling to smooth random write workloads in SSD+HDD configurations](../config/osd.en.md#throttle_small_writes)
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- [RDMA/RoCEv2 support via libibverbs](../config/network.en.md#rdma_device)
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## Plugins and tools
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- [Debian and CentOS packages](../installation/packages.en.md)
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- [Image management CLI (vitastor-cli)](../usage/cli.en.md)
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- Generic user-space client library
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- [Native QEMU driver](../usage/qemu.en.md)
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- [Loadable fio engine for benchmarks](../usage/fio.en.md)
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- [NBD proxy for kernel mounts](../usage/nbd.en.md)
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- [CSI plugin for Kubernetes](../installation/kubernetes.en.md)
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- [OpenStack support: Cinder driver, Nova and libvirt patches](../installation/openstack.en.md)
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- [Proxmox storage plugin and packages](../installation/proxmox.en.md)
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- [Simplified NFS proxy for file-based image access emulation (suitable for VMWare)](../usage/nfs.en.md)
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## Roadmap
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The following features are planned for the future:
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- Better OSD creation and auto-start tools
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- Other administrative tools
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- Web GUI
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- OpenNebula plugin
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- iSCSI proxy
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- Multi-threaded client
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- Faster failover
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- Scrubbing without checksums (verification of replicas)
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- Checksums
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- Tiered storage (SSD caching)
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- NVDIMM support
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- Compression (possibly)
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- Read caching using system page cache (possibly)
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