61 lines
2.0 KiB
Markdown
61 lines
2.0 KiB
Markdown
---
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title: Features
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weight: 1
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---
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Vitastor is currently a pre-release and it still misses some important features.
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However, the following is implemented:
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- Basic part: highly-available block storage with symmetric clustering and no SPOF
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- Performance ;-D
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- Multiple redundancy schemes: Replication, XOR n+1, Reed-Solomon erasure codes
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based on jerasure library 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
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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
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- RDMA/RoCEv2 support via libibverbs
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CLI (vitastor-cli):
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- Pool listing and space stats (df)
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- Image listing, space and I/O stats (ls)
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- Image and snapshot creation (create, modify)
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- Image removal and snapshot merge (rm, flatten, merge, rm-data)
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Plugins and packaging:
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- Debian and CentOS packages
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- Generic user-space client library
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- Native QEMU driver
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- Loadable fio engine for benchmarks
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- NBD proxy for kernel mounts
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- CSI plugin for Kubernetes
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- OpenStack support: Cinder driver, Nova and libvirt patches
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- Proxmox storage plugin and packages
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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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- Simplified NFS 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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