Subject: Re: urgenet question about shared-root + GFS - msg#00148

Previous Message by Date: click to view message preview

Re: urgenet question about shared-root + GFS

Hi,I have installed node 1 and node 2 with seperate root partitions, i mean each node has it's own root partition ( /boot /usr /home /var /tmp). Nodes are RAID 1+ 0.How do I setup my shared SAN storage to implement a shared GFS root for my cluster nodes ? My goal is to achieve ACTIVE/ACTIVE GFS cluster. Does open-sharedroot support RHEL ES v4 Update 2 ( kernel 2.6.9-22.ELsmp #1 SMP ). If not how do I setup the sym links for both nodes to share / partitions ? Thanks for your help,Much regards,Daniel On 1/4/06, Mark Hlawatschek <hlawatschek@xxxxxxx > wrote: Hi Sara,> we are planning to service 200000 customers for> internet services such as webhosting,email,DNS.We have> designed about 8 servers for each service to run a> share of the load.I want to use Clustersuit as well as > GFS as we are making use of SAN.Very good. We've built some solutions for internet services based on a GFSstorage cluster with great success. We also created a diskless shared rootcluster environment (cluster boots from SAN and shares the same root partition) for enhanced management and scalability. We determined that usinga shared root cluster extremely reduces the effort for system administration.Besides, the scalability of the cluster and replacement of cluster nodes can be done within minimum timeframe and minimum installation work. As you wantto create a cluster with 8 nodes and more, you should also think about that.We are in progress of releasing the shared root software at source forge site. The project's name will be open-sharedroot.> As I have studied mannuals of clustersuit , it seems> that there is only one service up in each> clustersystems , my question is we this high number of > users How can I rely just on one servers , I know that> another server in failoverdomain comesup incase of> first server failure , but what about load balancing?> how can I have all of me servers running in my > clustersystems ?> I have studied about pirnaha for IP load balancing but> it seems that I can not use GFS with Pirnaha?> I appreciate If any one could help me reagrding this> issue? As this topic has been already discussed, he're just a short sum-up:- You need an IP load-balancer in front of your cluster. You can use ahardware solution or a software solution like Piranha or other packages using LVS to implement this. To achieve highest availability you shoud create atleast an active/passive HA cluster. The nicest solution would be anactive/active loadbalancing.- To host the services you need to create the GFS storage cluster (also think about using shared root). Depending on the type of service, the applicationsare running in parallel on each cluster node (e.g. apache, tomcat, php), orare integrated into a failover configuration (e.g. mySQL). Best Regards,Mark--Gruss / Regards,Dipl.-Ing. Mark HlawatschekPhone: +49-89 121 409-55 http://www.atix.de/**ATIX - Ges. fuer Informationstechnologie und Consulting mbH Einsteinstr. 10 - 85716 Unterschleissheim - Germany--Linux-cluster mailing listLinux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster

Next Message by Date: click to view message preview

Re: urgenet question about shared-root + GFS

Hi Mark,Thanks for your prompt reply, I went to your website already, almost all is in german.From the slides I can see that shared-root can do the job for me. Next week will be good, but I have few time left for my project., but This weekend is already dead line for me. Thanks for your helpDanielOn 1/24/06, Mark Hlawatschek <hlawatschek@xxxxxxx> wrote: Hi Daniel,we are going to provide the HowTo and the required software to build up a GFS shared root cluster within the next week. You will find everything you needat http://www.open-sharedroot.orgThe main part of the process is to build an initrd that mounts the shared root. This is quite a complex thing to do. Therefore, we developed somescripts to do the job. Keep looking at the website ...Yes, you can use RHEL4 Update2 with open-sharedroot.Regards,Mark On Tuesday 24 January 2006 15:06, Daniel EPEE LEA wrote:> Hi,>> I have installed node 1 and node 2 with seperate root partitions, i mean> each node has it's own root partition ( /boot /usr /home /var /tmp). Nodes > are RAID 1+ 0.>> How do I setup my shared SAN storage to implement a shared GFS root for my> cluster nodes ?>> My goal is to achieve ACTIVE/ACTIVE GFS cluster. Does open-sharedroot > support RHEL ES v4 Update 2 ( kernel 2.6.9-22.ELsmp #1 SMP ). If not how do> I setup the sym links for both nodes to share / partitions ?>> Thanks for your help,>> Much regards, >> Daniel>> On 1/4/06, Mark Hlawatschek <hlawatschek@xxxxxxx> wrote:> > Hi Sara,> >> > > we are planning to service 200000 customers for > > > internet services such as webhosting,email,DNS.We have> > > designed about 8 servers for each service to run a> > > share of the load.I want to use Clustersuit as well as> > > GFS as we are making use of SAN. > >> > Very good. We've built some solutions for internet services based on a> > GFS storage cluster with great success. We also created a diskless shared> > root cluster environment (cluster boots from SAN and shares the same root > > partition) for enhanced management and scalability. We determined that> > using> > a shared root cluster extremely reduces the effort for system> > administration.> > Besides, the scalability of the cluster and replacement of cluster nodes > > can> > be done within minimum timeframe and minimum installation work. As you> > want> > to create a cluster with 8 nodes and more, you should also think about> > that. > > We are in progress of releasing the shared root software at source forge> > site.> > The project's name will be open-sharedroot.> >> > > As I have studied mannuals of clustersuit , it seems > > > that there is only one service up in each> > > clustersystems , my question is we this high number of> > > users How can I rely just on one servers , I know that> > > another server in failoverdomain comesup incase of > > > first server failure , but what about load balancing?> > > how can I have all of me servers running in my> > > clustersystems ?> > > I have studied about pirnaha for IP load balancing but > > > it seems that I can not use GFS with Pirnaha?> > > I appreciate If any one could help me reagrding this> > > issue?> >> > As this topic has been already discussed, he're just a short sum-up: > > - You need an IP load-balancer in front of your cluster. You can use a> > hardware solution or a software solution like Piranha or other packages> > using> > LVS to implement this. To achieve highest availability you shoud create > > at least an active/passive HA cluster. The nicest solution would be an> > active/active loadbalancing.> > - To host the services you need to create the GFS storage cluster (also> > think > > about using shared root). Depending on the type of service, the> > applications> > are running in parallel on each cluster node (e.g. apache, tomcat, php),> > or> > are integrated into a failover configuration ( e.g. mySQL).> >> > Best Regards,> > Mark> > --> > Gruss / Regards,> >> > Dipl.-Ing. Mark Hlawatschek> > Phone: +49-89 121 409-55> > http://www.atix.de/> >> > **> > ATIX - Ges. fuer Informationstechnologie und Consulting mbH> > Einsteinstr. 10 - 85716 Unterschleissheim - Germany > >> > --> > Linux-cluster mailing list> > Linux-cluster@xxxxxxxxxx> > https://www.redhat.com/mailman/listinfo/linux-cluster--Gruss / Regards,Dipl.-Ing. Mark HlawatschekPhone: +49-89 121 409-55http://www.atix.de/** ATIX - Ges. fuer Informationstechnologie und Consulting mbHEinsteinstr. 10 - 85716 Unterschleissheim - Germany--Linux-cluster mailing listLinux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster

Previous Message by Thread: click to view message preview

Re: urgenet question about shared-root + GFS

Hi,I have installed node 1 and node 2 with seperate root partitions, i mean each node has it's own root partition ( /boot /usr /home /var /tmp). Nodes are RAID 1+ 0.How do I setup my shared SAN storage to implement a shared GFS root for my cluster nodes ? My goal is to achieve ACTIVE/ACTIVE GFS cluster. Does open-sharedroot support RHEL ES v4 Update 2 ( kernel 2.6.9-22.ELsmp #1 SMP ). If not how do I setup the sym links for both nodes to share / partitions ? Thanks for your help,Much regards,Daniel On 1/4/06, Mark Hlawatschek <hlawatschek@xxxxxxx > wrote: Hi Sara,> we are planning to service 200000 customers for> internet services such as webhosting,email,DNS.We have> designed about 8 servers for each service to run a> share of the load.I want to use Clustersuit as well as > GFS as we are making use of SAN.Very good. We've built some solutions for internet services based on a GFSstorage cluster with great success. We also created a diskless shared rootcluster environment (cluster boots from SAN and shares the same root partition) for enhanced management and scalability. We determined that usinga shared root cluster extremely reduces the effort for system administration.Besides, the scalability of the cluster and replacement of cluster nodes can be done within minimum timeframe and minimum installation work. As you wantto create a cluster with 8 nodes and more, you should also think about that.We are in progress of releasing the shared root software at source forge site. The project's name will be open-sharedroot.> As I have studied mannuals of clustersuit , it seems> that there is only one service up in each> clustersystems , my question is we this high number of > users How can I rely just on one servers , I know that> another server in failoverdomain comesup incase of> first server failure , but what about load balancing?> how can I have all of me servers running in my > clustersystems ?> I have studied about pirnaha for IP load balancing but> it seems that I can not use GFS with Pirnaha?> I appreciate If any one could help me reagrding this> issue? As this topic has been already discussed, he're just a short sum-up:- You need an IP load-balancer in front of your cluster. You can use ahardware solution or a software solution like Piranha or other packages using LVS to implement this. To achieve highest availability you shoud create atleast an active/passive HA cluster. The nicest solution would be anactive/active loadbalancing.- To host the services you need to create the GFS storage cluster (also think about using shared root). Depending on the type of service, the applicationsare running in parallel on each cluster node (e.g. apache, tomcat, php), orare integrated into a failover configuration (e.g. mySQL). Best Regards,Mark--Gruss / Regards,Dipl.-Ing. Mark HlawatschekPhone: +49-89 121 409-55 http://www.atix.de/**ATIX - Ges. fuer Informationstechnologie und Consulting mbH Einsteinstr. 10 - 85716 Unterschleissheim - Germany--Linux-cluster mailing listLinux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster

Next Message by Thread: click to view message preview

Re: urgenet question about shared-root + GFS

Hi Mark,Thanks for your prompt reply, I went to your website already, almost all is in german.From the slides I can see that shared-root can do the job for me. Next week will be good, but I have few time left for my project., but This weekend is already dead line for me. Thanks for your helpDanielOn 1/24/06, Mark Hlawatschek <hlawatschek@xxxxxxx> wrote: Hi Daniel,we are going to provide the HowTo and the required software to build up a GFS shared root cluster within the next week. You will find everything you needat http://www.open-sharedroot.orgThe main part of the process is to build an initrd that mounts the shared root. This is quite a complex thing to do. Therefore, we developed somescripts to do the job. Keep looking at the website ...Yes, you can use RHEL4 Update2 with open-sharedroot.Regards,Mark On Tuesday 24 January 2006 15:06, Daniel EPEE LEA wrote:> Hi,>> I have installed node 1 and node 2 with seperate root partitions, i mean> each node has it's own root partition ( /boot /usr /home /var /tmp). Nodes > are RAID 1+ 0.>> How do I setup my shared SAN storage to implement a shared GFS root for my> cluster nodes ?>> My goal is to achieve ACTIVE/ACTIVE GFS cluster. Does open-sharedroot > support RHEL ES v4 Update 2 ( kernel 2.6.9-22.ELsmp #1 SMP ). If not how do> I setup the sym links for both nodes to share / partitions ?>> Thanks for your help,>> Much regards, >> Daniel>> On 1/4/06, Mark Hlawatschek <hlawatschek@xxxxxxx> wrote:> > Hi Sara,> >> > > we are planning to service 200000 customers for > > > internet services such as webhosting,email,DNS.We have> > > designed about 8 servers for each service to run a> > > share of the load.I want to use Clustersuit as well as> > > GFS as we are making use of SAN. > >> > Very good. We've built some solutions for internet services based on a> > GFS storage cluster with great success. We also created a diskless shared> > root cluster environment (cluster boots from SAN and shares the same root > > partition) for enhanced management and scalability. We determined that> > using> > a shared root cluster extremely reduces the effort for system> > administration.> > Besides, the scalability of the cluster and replacement of cluster nodes > > can> > be done within minimum timeframe and minimum installation work. As you> > want> > to create a cluster with 8 nodes and more, you should also think about> > that. > > We are in progress of releasing the shared root software at source forge> > site.> > The project's name will be open-sharedroot.> >> > > As I have studied mannuals of clustersuit , it seems > > > that there is only one service up in each> > > clustersystems , my question is we this high number of> > > users How can I rely just on one servers , I know that> > > another server in failoverdomain comesup incase of > > > first server failure , but what about load balancing?> > > how can I have all of me servers running in my> > > clustersystems ?> > > I have studied about pirnaha for IP load balancing but > > > it seems that I can not use GFS with Pirnaha?> > > I appreciate If any one could help me reagrding this> > > issue?> >> > As this topic has been already discussed, he're just a short sum-up: > > - You need an IP load-balancer in front of your cluster. You can use a> > hardware solution or a software solution like Piranha or other packages> > using> > LVS to implement this. To achieve highest availability you shoud create > > at least an active/passive HA cluster. The nicest solution would be an> > active/active loadbalancing.> > - To host the services you need to create the GFS storage cluster (also> > think > > about using shared root). Depending on the type of service, the> > applications> > are running in parallel on each cluster node (e.g. apache, tomcat, php),> > or> > are integrated into a failover configuration ( e.g. mySQL).> >> > Best Regards,> > Mark> > --> > Gruss / Regards,> >> > Dipl.-Ing. Mark Hlawatschek> > Phone: +49-89 121 409-55> > http://www.atix.de/> >> > **> > ATIX - Ges. fuer Informationstechnologie und Consulting mbH> > Einsteinstr. 10 - 85716 Unterschleissheim - Germany > >> > --> > Linux-cluster mailing list> > Linux-cluster@xxxxxxxxxx> > https://www.redhat.com/mailman/listinfo/linux-cluster--Gruss / Regards,Dipl.-Ing. Mark HlawatschekPhone: +49-89 121 409-55http://www.atix.de/** ATIX - Ges. fuer Informationstechnologie und Consulting mbHEinsteinstr. 10 - 85716 Unterschleissheim - Germany--Linux-cluster mailing listLinux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster