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
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 >
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. -- 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 >>