73 lines
3.4 KiB
Markdown
73 lines
3.4 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/bench2.en.md) ;-D
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- [NVMe atomic write support](../config/osd.en.md#atomic_write_size) for reducing the amount
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of "extra" disk writes to almost zero (Write Amplification = 1)
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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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- [Localized read support](../config/pool.en.md#local_reads) for cross-datacenter setup optimization
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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#use_rdma) or [RDMA-CM](../config/network.en.md#use_rdmacm)
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- [Scrubbing](../config/osd.en.md#auto_scrub) (verification of copies)
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- [Checksums](../config/layout-osd.en.md#data_csum_type)
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- [Client write-back cache](../config/client.en.md#client_enable_writeback)
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- [Intelligent recovery auto-tuning](../config/osd.en.md#recovery_tune_interval)
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- [Clustered file system](../usage/nfs.en.md#vitastorfs)
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- [Experimental internal etcd replacement - antietcd](../config/monitor.en.md#use_antietcd)
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- [Built-in Prometheus metric exporter](../config/monitor.en.md#enable_prometheus)
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- [NFS RDMA support](../usage/nfs.en.md#rdma) (probably also usable for GPUDirect)
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- [S3](../installation/s3.en.md)
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## Plugins and tools
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- [Proxmox storage plugin and packages](../installation/proxmox.en.md)
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- [OpenNebula storage plugin](../installation/opennebula.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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- [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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- [Disk management CLI (vitastor-disk)](../usage/disk.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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- [UBLK](../usage/ublk.en.md) and [NBD](../usage/nbd.en.md) servers for kernel mounts
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- [Simplified NFS proxy for file-based image access emulation (suitable for VMWare)](../usage/nfs.en.md#pseudo-fs)
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## Roadmap
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The following features are planned for the future:
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- Control plane optimisation
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- Other administrative tools
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- Web GUI
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- iSCSI and NVMeoF gateways
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- Multi-threaded client
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- Faster failover
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- Tiered storage (SSD caching)
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- NVDIMM support
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- Compression (possibly)
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