Davide,<br> Please find reply inline.<br><br><div class="gmail_quote">On Sun, Feb 22, 2009 at 9:52 PM, Davide D'Amico <span dir="ltr"><<a href="mailto:davide.damico@gmail.com">davide.damico@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">2009/2/22 Basavanagowda Kanur <<a href="mailto:gowda@zresearch.com">gowda@zresearch.com</a>>:<br>
<div class="Ih2E3d">> Davide,<br>
> Replies inline.<br>
><br>
> On Sun, Feb 22, 2009 at 2:24 PM, Davide D'Amico <<a href="mailto:davide.damico@gmail.com">davide.damico@gmail.com</a>><br>
> wrote:<br>
>><br>
>> Hi,<br>
>> I was looking for a scalable-ha nfs storage solution and glusterfs seems<br>
>> to be<br>
>> the only out there :-)<br>
>><br>
>> I was reading the documentation and I cannot find the difference<br>
>> between "Replicate<br>
>> Translator" and "HA Translator": the latest seems to be a particular case<br>
>> of the<br>
>> first one when I have only two bricks. Is it right?<br>
><br>
> Replicate translator provides replication feature, whereas HA (High<br>
> Availability) translator provides high availability, HA does not do any<br>
> replication.<br>
</div>It seems that HA works on 'interfaces', while Replication works on subvolumes.<br>
<div class="Ih2E3d"><br>
>><br>
>> I intend to create a scalable nfs cluster, so I can add storage nodes<br>
>> to increase<br>
>> storage size: have I to use unify on top of AFR translator (i.e. unify<br>
>> on a replicated<br>
>> volume?).<br>
><br>
> you can use 'distribute' (formerly DHT) translator over AFR.<br>
<br>
</div>What are the differences between unify and distribute? It seems that dht si<br>
more scalable than unify.<br>
</blockquote><div>unify and distribute function exactly in the same way - to distribute files across their subvolumes.<br>Difference is in the way the distribution is handled. <br>* distribute uses a hash based scheduling to distribute files, whereare unify relies on the schedulers. <br>
* distribute does not require any central meta-data server, whereas unify requires a central meta-data server called namespace.<br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
I am using fbsd 7 and to compile the sources I have to install bison,<br>
fusefs-libs,<br>
setenv (export if you use bash) CFLAGS=-I/usr/local/include and<br>
LDFLAGS=-L/usr/local/lib<br>
to compile with FUSE enabled.<br>
<br>
Thanks,<br>
<font color="#888888">d.<br>
</font></blockquote></div><br><br clear="all"><br>-- <br>Gowda<br>