Hello K, I work for a company named polyserve (polyserve.com) -- we are in the business of making highly available clustered systems, based on linux and also some windows products. I work in the linux group and have much experience with setting up linux clusters.
K Jepson wrote: >I want to build a highly available cluster using HP DLx servers on an >Equallogic iSCSI Storage Area Network (SAN). > >One of my first concerns is regarding drivers. For instance, I >currently plan to use the QLogic Host Bus Adapter (HBA) QLA4010-C. >This adapter allows boot from SAN in addition to offloading the tcp/ >ip workload from the cpu. > > We also use qlogic hba's. For the most part the drivers are fine -- in some cases the drivers have proven insufficient for our needs and we have created some improvements in the qlogic drivers. These fixes are to suit some of the special needs of our own software -- I think the default qlogic drivers will be okay in most cases. >QLogic makes certain their driver stays built in to the RedHat >kernel. Does that mean it would also likely automatically be >supported in the TSL kernel? > > It is easy to recompile the Qlogic drivers -- they provide the source, and recompiling for a different platform is quite easy. >Second, I haven’t found any good posts in the archives re: building >Highly Available Clusters (H-A Clusters) using Trustix. Could anyone >point me in the right direction here? I’ll be happy to share my >experience with this project for others to benefit from, but I’m >hoping to find some initial information to get started. For instance, >is there any type of H-A Clustering support built-in to TSL? If not, >any ideas what is likely needed to make this work? > > There are many, many variables that need to be considered first: How many server accessing the san? What file system will you use? Plain resiser? A clustered f/s like GFS? What applications will you host on these severs -- H/A is not so easy with some applications, but easier with others. Do you want your servers to act in "hot stand by" mode, or do you want both servers performing workload at all times? Maybe you can provide more details about what you would like to accomplish and I would be happy to provide you with much more detail. Cheers, Dominic _______________________________________________ tsl-discuss mailing list [email protected] http://lists.trustix.org/mailman/listinfo/tsl-discuss
