[Gluster-users] Deployment (round 2)

[Paolo Supino]

Hi Krishna

  I'm running glusterfs servers and clients on all the nodes that are
connected to the private network and I want to run glusterfs clients (only)
on researcher computers that have only access to the head node from an
external network.
  I've attached an image of the final setup I want to reach ...
  What I'm missing now: Head node doesn't iSCSI mount the toaster and
doesn't isn't a glusterfs server. The researcher's computer doesn't act as a
glusterfs client ...




--
TIA
Paolo







On Sat, Sep 20, 2008 at 10:32 PM, Krishna Srinivas <krishna at zresearch.com>wrote:

> On Sun, Sep 21, 2008 at 1:46 AM, Paolo Supino <paolo.supino at gmail.com>
> wrote:
> > Hi Krishna
> >
> >  I have all intentions of mounting the toaster's filesystems on the
> > head node using iSCSI (see my original post), but I have a problem: I
> > have 35 servers in the gluster filesystem that the researchers don't see
> > directly: the head node hides the private network with
> > PAT/PNAT/Masquerading (pick your favorite acronym) so the clients only
> > see the head node but not all the gluster filesystem servers behind it.
> > The glusterfs clients get a wrong image of the gluster filesystem ... I
> > could simply remove the PAT/PNAT/Masquerading (pick your favorite
> > acronym), but I'd rather not do that because that adds an overhead in
> > systems administration and breaks the rule of KISS.
> >
>
> Ah OK, you have 35 storage servers apart from toaster.
> If I understand you correctly, you are planing to run glusterfs
> client on head node and re-export this mount point to the
> researchers' nodes?
> If yes, you could setup port forwarding on head node and avoid
> re-exporting completely so that researchers' nodes access the
> storage nodes directly.
>
> Regards
> Krishna
>
> >
> >
> > --
> > TIA
> > Paolo
> >
> >
> >
> > Krishna Srinivas wrote:
> >> Paolo,
> >>
> >> You could mount toaster's partition on head node using iscsi.
> >> Run glusterfs server on head node exporting the two partitions.
> >> Run glusterfs client on the researcher's nodes.
> >>
> >> Krishna
> >>
> >> 2008/9/18 Paolo Supino <paolo.supino at gmail.com>:
> >>> Hi
> >>>
> >>>   now that I have a new shiney parallel filesystem :-) I want to take
> >>> it a step forward (the fun never ends ;-) ) ...
> >>>   A few words on my HPC cluster:
> >>> 1. The private network between the compute nodes, head and toaster
> >>> (Netapp FAS 2020) is Gigabit Ethernet.
> >>> 2. The toaster exports 2.1 and 5.1 TB volumes served over NFSv3
> (ouch..)
> >>> 3. Only the head node is multi homed and connected to the faculty
> >>> network, where the researchers are ...
> >>>
> >>>   What I thought of doing:
> >>> 1. Re export the toaster using iSCSI.
> >>> 2. Mount the iSCSI exports on the head and add them to the gluster
> >>> volume. This is pretty straight forward :-) and voilà I have a uniform
> >>> 9.3TB volume ...
> >>> 3. The last part is the tricky part that I still have to figure out:
> >>> have the researchers be able to be gluster clients of this volume
> >>> without exposing the private network to the faculty network (I don't
> >>> want to NFS export it)
> >>>
> >>>
> >>>
> >>>
> >>> --
> >>> Paolo
> >>> _______________________________________________
> >>> Gluster-users mailing list
> >>> Gluster-users at gluster.org
> >>> http://zresearch.com/cgi-bin/mailman/listinfo/gluster-users
> >>>
> >
> >
>
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