Andrej Kristanc (2011) Ensuring high-availability of virtual tape libraries by implementing IBM TS7650G with WSFC cluster. EngD thesis.
Connection of two TS7650G nodes in order to achieve high availability of virtual tape library is presented in the following thesis. This means that one of the two TS7650G nodes is active and the other one is passive. When active TS7650G node for any reason cease to function, the other node must be automatically activated in a relatively short period of time. With the implementation of both nodes into the WSFC (Windows Server Fail-over Clustering) cluster using generic script resource, we have achieved high availability of virtual tape library. By creating special scripts we have linked WSFC cluster with both TS7650G nodes. Relationship between TS7650G nodes and WSFC cluster is working so that WSFC cluster is calling standard functions that are defined for generic script resource and are written in a scripting language Visual Basic Script. These standard functions then call external scripts, written in Perl scripting language, which manage both TS7650G nodes via SSH protocol.
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