Table of Contents

Inspur Hotswap Cages

Taobao has many 2U hot-swap cages for sale with SAS expanders and daisy-chain capabilities. These are disassembled from 2U Inspur servers disposed by hyperscalers' reverse supply chains.

A cottage industry of accessories and enclosures for these hot-swap cages has also sprung up around them.

Accessories

FIXME TODO

SA5212M4

Usage

PHY Mapping

Front view of hotswap cage:

phy12 phy13 phy14 phy15
phy16 phy17 phy18 phy19
phy20 phy21 phy22 phy23

phy0-phy11 are mapped to the mini-SAS HD connectors.

LED Control

LEDs can be controlled by ledctl, e.g.:

Supported patterns:

Useful Utilities