Sun Enterprise 10000 SSP 3.5 User Guide
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| Sun Enterprise 10000 SSP 3.5 User Guide
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Glossary |
AP enables you to set up an alternate path to system components in case of failure, repair, or replacement.
See Alternate Pathing (AP).
application specific integrated circuit (ASIC)
In the Sun Enterprise 10000 system, any of the large main chips in the design, including the UltraSPARC processor and data buffer chips.
A condition that occurs when one of the ASICs on a Sun Enterprise 10000 system detects a parity error or equivalent fatal system error. Bus arbitration is frozen, so all bus activity stops. The system is down until the SSP detects the condition by polling the Control and Status Registers CSRs of the Address Arbiter ASICs through JTAG, and clears the error condition.
See application specific integrated circuit (ASIC).
Automated Dynamic Reconfiguration (ADR)
The dynamic reconfiguration of system boards accomplished through commands that can be used to automatically attach, move, or detach system boards and obtain board status information. You can run these commands interactively or in shell scripts.
The automatic switchover of the main SSP to its spare or the primary control board to its spare when a failure in the operation of the main SSP occurs.
See bootbus SRAM (BBSRAM).
A text file that hpost (1M) reads when it starts up. The blacklist file specifies the Sun Enterprise 10000 system components that are not to be used or configured into the system. The default path name for this file can be overridden in the .postrc file (see postrc (4)) and on the command line.
The description of the single configuration that hpost (1M) chooses. It is part of the structure handed off to OBP .
A slow-speed, byte-wide bus controlled by the processor port controller ASICs, used for running diagnostics and boot code. UltraSPARC starts running code from bootbus when it exits reset. In the Sun Enterprise 10000 system, the only component on the bootbus is the BBSRAM.
A 256-Kbyte static RAM attached to each processor PC ASIC. Through the PC, it can be accessed for reading and writing from JTAG or the processor. Bootbus SRAM is downloaded at various times with hpost (1M) and OBP startup code, and provides shared data between the downloaded code and the SSP.
The recovery of user- created commands interrupted by an automatic failover.
control and status register (CSR)
A general term for any embedded register in any of the ASICS in the Sun Enterprise 10000 system.
See control and status register (CSR).
The process of synchronizing SSP configuration and user-created files between the main and spare SSP for failover purposes.
See dual in-line memory module (DIMM).
A set of one or more system boards that acts as a separate system capable of booting the OS and running independently of any other domains.
See dynamic RAM (DRAM).
dual in-line memory module (DIMM)
A small printed circuit card containing memory chips and some support logic.
Redundant power supplies on the Sun Enterprise 10000 system. The power supplies are divided into two grids, with each grid wired to independent AC sources. Up to eight power supplies are available for each grid, for a total of 16 power supplies.
Hardware memory chips that require periodic rewriting to retain their contents. This process is called "refresh". In the Sun Enterprise 10000 system, DRAM is used only on main memory SIMMs and on the control boards.
The logical attachment and detachment of system boards to and from the operating system without causing machine downtime. This feature is used to add a new system board, reinstall a repaired system board, or modify the domain configuration on the Sun Enterprise 10000 system.
See external cache (Ecache).
A 0.5-Mbyte to 4-Mbyte synchronous static RAM second-level cache local to each processor module. Used for both code and data. This is a direct-mapped cache.
A serial scan interface specified by IEEE standard 1149.1. The name comes from Joint Test Action Group, which initially designed it. See JTAG+.
An extension of JTAG, developed by Sun Microsystems Inc., which adds a control line to signal that board and ring addresses are being shifted on the serial data line. Often referred to simply as JTAG.
High-speed networking supported between dynamic system domains within a single Sun Enterprise 10000 platform. Domains can communicate with each other using standard networking interfaces, such as Transmission Control Protocol/Internet Protocol (TCP/IP).
Internet Protocol multipathing. Enables continuous application availability by load balancing failures when multiple network interface cards are attached to a system. If a failure occurs in a network adapter, and if an alternate adapter is connected to the same IP link, the system switches all the network accesses from the failed adapter to the alternate adapter. When multiple network adapters are connected to the same IP link, any increases in network traffic are spread across multiple network adapters, which improves network throughput.
See OpenBoot PROM (OBP).
A layer of software that takes control of the configured Sun Enterprise 10000 system from hpost (1M), builds some data structures in memory, and boots the operating system.
See power-on self-test .
A test performed by hpost (1M). This is the program that takes uninitialized Sun Enterprise 10000 system hardware and probes and tests its components, configures what seems worthwhile into a coherent initialized system, and hands it off to OBP.
A text file that controls options in hpost (1M). Some of the functions can also be controlled from the command line. Arguments on the command line take precedence over lines in the .postrc file, which takes precedence over built-in defaults. hpost -? postrc gives a terse reminder of the .postrc options and syntax. See postrc (4).
A Sun Microsystems Inc. designed I/O bus, now an open standard.
See static RAM (SRAM) .
Memory chips that retain their contents as long as power is maintained.
See System Service Processor (SSP) .
System Service Processor (SSP)
A workstation or server containing software for controlling power sequencing, diagnostics, and booting of a Sun Enterprise 10000 system.
The UltraSPARC processor is the processor module used in the Sun Enterprise 10000 system.
| Sun Enterprise 10000 SSP 3.5 User Guide
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