Abstract: A method for adding a server to a storage area network, the method comprising identifying a set comprising one or more communication protocols for connecting a second server to a first storage device configured to communicate with a first server using a first protocol, wherein the set of protocols comprises protocols that are supported by both the second server and the first storage device; selecting a second protocol from the set of protocols; and configuring the first storage device, the second server, and associated connection devices, wherein the second server may communicate with the first storage device using the second protocol.

Abstract: A method for adding a server to a storage area network, the method comprising identifying a set comprising one or more communication protocols for connecting a second server to a first storage device configured to communicate with a first server using a first protocol, wherein the set of protocols comprises protocols that are supported by both the second server and the first storage device; selecting a second protocol from the set of protocols; and configuring the first storage device, the second server, and associated connection devices, wherein the second server may communicate with the first storage device using the second protocol.

Abstract: A method and apparatus that automatically generates and maintains resource groups for a clustered computer network configuration. Resource groups are said to be generated "automatically" because the system administrator preferably is not directly involved with defining what resources go within a particular group. Rather, the administrator merely identifies a set of resources that must be collocated with a given application in the event of a failure of a computer on which the application is then executing. One or more resource groups are then automatically generated using a set of collocation "constraints" or rules. A first collocation constraint preferably enforces any user-defined collocations for a given application, and a second constraint collocates disk partition resources residing on the same physical disk. A resource group generated is this manner ensures effective fault-tolerant operation.

Abstract: A data processing system stores and maintains a plurality of security levels for dynamically linked libraries. Upon loading of an application, and upon determination of which dynamically linked libraries are required by the application, the data processing system determines the predefined security level assigned to the application and loads dynamically linked libraries previously encoded with the predefined security level.

Abstract: Lazy loading of executable library objects reduces operating system overhead and memory commitment requirements by postponing object loading until object references are expected. Initial task loading allocates only the main executable and library objects referenced by that executable. Secondary referenced objects are not allocated. Object references cause page faults for allocated but not loaded pages. Page fault handling causes loading and fixup of executable objects. Page fault handling also determines the next level of object references and allocates memory for the next object level. Shared memory systems allow sharing of executable objects until explicitly referenced. Once referenced, memory fault causes copying and fixup to referencing task memory area.