What to read next OverviewLearn how to install and configure the SolutionPack for Ericsson IMS HSS SLF (Subscriber Locator Function). The Home Subscriber Server (HSS) is the central IMS user database that stores all IMS subscription information. The SolutionPack for Ericsson IMS HSS SLF reports on the information in the HSS, including user registration and user subscription. Technical specifications Where to find the latest SolutionPack software Collecting performance parametersBefore installing a SolutionPack, you must perform certain steps to ensure the SolutionPack is able to collect performance parameters from various IMS components. These parameters are transferred in 3GPP-compliant XML files from IMS to the host using SFTP. Node, performance category, default file name pattern and 3GPP format Configuring the user process limits for a Linux installationIncrease the user process limits for the apg user account to a maximum of 65534. This modification enables services to open 65534 files and 65534 processes when needed. This step is required for proper functioning of the core software. Installing a SolutionPackAfter you log in as an administrator, you can install a from Centralized Management. Confirming report creationAfter you install a , you can view its reports. Troubleshooting Parent topic: SolutionPacks for Mobile Devices