Highly Available STorage
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 | This article relies largely or entirely on a single source. (June 2024) |
| Highly Available Storage | |
|---|---|
| Original author | Pawel Jakub Dawidek |
| Repository |
|
| Written in | C |
| Engine | |
| Operating system | FreeBSD |
| Type | Distributed storage system |
| License | FreeBSD License |
| Website | wiki |
Highly Available Storage (HAST) is a protocol and tool set for FreeBSD written by Pawel Jakub Dawidek, a core FreeBSD developer.
HAST provides a block device to be synchronized between two servers for use as a file system. The two machines comprise a cluster, where each machine is a cluster node. HAST uses a Primary-Secondary (or Master-Slave) configuration, so only one cluster node is active at a time.
HAST-provided devices appear like disk devices in the /dev/hast/ directory in FreeBSD, and can be used like standard block devices. HAST is similar to a RAID1 (mirror) where each RAID component is provided across the network by one cluster node.[1]
See also
[edit | edit source]- Network block device
- DRBD (Distributed Replicated Block Device)
References
[edit | edit source]- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
External links
[edit | edit source]
