[Gluster-users] Difference in transltors and a question about live heal

[William Hanwoody]

> On Sun, Feb 22, 2009 at 11:06 PM, Jeffry Molanus
>
> <jeffry.molanus at gmail.com>wrote:
> > On Sun, 2009-02-22 at 21:34 +0530, Basavanagowda Kanur wrote:
> > > Davide,
> > >   Replies inline.
> > >
> > > On Sun, Feb 22, 2009 at 2:24 PM, Davide D'Amico
> > > <davide.damico at gmail.com> wrote:
> > >         Hi,
> > >         I was looking for a scalable-ha nfs storage solution and
> > >         glusterfs seems to be
> > >         the only out there :-)
> > >
> > >         I was reading the documentation and I cannot find the
> > >         difference
> > >         between "Replicate
> > >         Translator" and "HA Translator": the latest seems to be a
> > >         particular case of the
> > >         first one when I have only two bricks. Is it right?
> > > Replicate translator provides replication feature, whereas HA (High
> > > Availability) translator provides high availability, HA does not do
> > > any replication.
> >
> > Care to explain how it does work then? How can a file be HA if the
> > server that went down is not replicated?
>
> HA is useful when you have multiple network interconnect to the server and
> you want glusterfs to continue working seemlessly, then you would use HA.
> HA fails over to secondary interconnect, if primary fails.

I think the name of "HA" is mismatch. For replication is also "HA" when one of 
storage node went down.

HA of gluster is more like  bonding of multiple network interface，and I think 
it is no need for glusterfs, because we can do bonding!!

>
> > >         I intend to create a scalable nfs cluster, so I can add
> > >         storage nodes
> > >         to increase
> > >         storage size: have I to use unify on top of AFR translator
> > >         (i.e. unify
> > >         on a replicated
> > >         volume?).
> > > you can use 'distribute' (formerly DHT) translator over AFR.
> > >
> > >
> > >
> > >         I've read that glusterfs has problems with self-healing and
> > >         opened
> > >         files: is it true?
> > >
> > >
> > >         Thanks in advance,
> > >
> > >         --
> > >         d.
> > >
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> > >
> > >
> > >
> > > --
> > > Gowda
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