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 voil? 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 > >>> > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://zresearch.com/pipermail/gluster-users/attachments/20080921/bc2b3ae8/attachment-0001.htm -------------- next part -------------- A non-text attachment was scrubbed... Name: final.JPG Type: image/jpeg Size: 55387 bytes Desc: not available Url : http://zresearch.com/pipermail/gluster-users/attachments/20080921/bc2b3ae8/attachment-0001.jpeg
