HAST (Highly Available Storage) now in HEAD.

Renato Botelho rbgarga at gmail.com
Sat Feb 20 21:12:00 UTC 2010


On Fri, Feb 19, 2010 at 5:07 PM, Pawel Jakub Dawidek <pjd at freebsd.org> wrote:
> Hi.
>
> Yesterday I committed HAST to the HEAD branch.
>
> HAST allows to transparently store data on two physically separated
> machines connected over the TCP/IP network. HAST works in
> Primary-Secondary (Master-Backup, Master-Slave) configuration, which
> means that only one of the cluster nodes can be active at any given
> time. Only Primary node is able to handle I/O requests to HAST-managed
> devices. Currently HAST is limited to two cluster nodes in total.
>
> HAST operates on block level - it provides disk-like devices in
> /dev/hast/ directory for use by file systems and/or applications.
> Working on block level makes it transparent for file systems and
> applications. There in no difference between using HAST-provided device
> and raw disk, partition, etc. All of them are just regular GEOM
> providers in FreeBSD.
>
> For more information please consult hastd(8), hastctl(8) and
> hast.conf(5) manual pages, as well as:
>
>        http://wiki.FreeBSD.org/HAST
>
> On the wiki page above you should find instructions how to initialize
> hast and integrate it with ucarp.
>
> Let me know (using freebsd-fs at FreeBSD.org mailing list) if you have and
> questions or comments.
>
> And last, but not least, I'd like to thank sponsorswho made this
> projects possible:
>
>        The FreeBSD Foundation, http://www.freebsdfoundation.org
>        OMCnet Internet Service GmbH, http://www.omc.net
>        TransIP BV, http://www.transip.nl

It's great news, thank you for your hard work!!!


-- 
Renato Botelho


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