15.1 Introduction to remote support 15.2 IBM policies for remote support 472  IBM DS8880 Architecture and Implementation Although the Management Console is based on a Linux operating system, IBM disabled or  removed all unnecessary services, processes, and IDs, including standard internet services,  such as Telnet (Telnet server is disabled on the HMC), File Transfer Protocol (FTP),  r commands (Berkeley r-commands and Remote Procedure Call (RPC) commands), and  RPC programs. The following guidelines are at the core of the IBM remote support strategies for the DS8880: The worksheets are holding information about your remote support preferences, and the  network communication requirements that needs to be fulfilled by your local network. During the installation and planning phase, complete the remote support worksheets and  supply them to the IBM SSR at the time of the installation.  IBM Service support access the DS8880 HMC through a network-based connection.  The following features can be enabled in the DS8880 for remote support: The benefits of the remote support are that IBM Support can respond quickly to events  reported by you or the system.  IBM provides remote support capabilities for the DS8880. The remote support enables the  storage to communicate with IBM, and allows IBM support to remotely connect to the system  when authorized by the client.  GLYPH<SM590000> Call home support (outbound remote support): – Reporting problems to IBM – Sending heartbeat information – Offloading data GLYPH<SM590000> Remote service (inbound) remote support GLYPH<SM590000> When the DS8880 transmits service data to IBM, only logs and process memory dumps  are gathered for troubleshooting.  GLYPH<SM590000> When a remote session with the DS8880 is needed, the HMC or Management Console  always initiates an outbound connection to predefined IBM servers or ports. GLYPH<SM590000> IBM maintains multiple-level internal authorizations for any privileged access to the  DS8880 components. Only approved IBM service personnel can gain access to the tools  that provide the security codes for HMC command-line access.