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Chapter 6

SDR Repositories

IPMI systems keep information about their sensors and entities in an SDR repository. The SDR repository is a set of record; each record holding information about the sensor or entity. An SDR repository may also hold OEM records; those are system-specific and not discussed here.

IPMI systems have two types of SDR repositories. The IPMI spec does not give a name to the first type, but we shall refer to it here as the “main” SDR repository. A system should generally only have one of these. This repository is writable by the user using standard operations.

Each MC in an IPMI system may have a device SDR repository. IPMI does not have standard operations to write this repository, just to read it. This repository may also change dynamically. For instance, if some device is hot-plugged onto a board, the MC for that board may dynamically add or change sensors and entities for the new device.

The records in these two types of repositories are the same.

6.1

SDR Reservations

Both SDR repository types support the concept of a reservation.

6.2

The Main SDR Repository

TBD - write this

      • 6.2.1

        Modal and Non-Modal SDR Repositories

      • 6.2.2

        Commands for Main SDR Repositories

    • 6.3

      Device SDR Repositories

TBD - write this

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