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- Description
- Specifications
The #EMX0 is a 482.6 mm (19 in), 4U PCIe Gen3 I/O drawer that provides up to 12 PCIe Gen3 adapter slots. It attaches to the 9008-22L, 9009-22A, 9009-41A, 9009-42A, 9040-MR9, 9080-M9S, 9223-22H and 9223-42H, and carries two PCIe fan-out modules (#EMXG), each with six full-height, full-length slots labeled C1 to C6. Slots C1 and C4 are x16 and C2, C3, C5 and C6 are x8, and C1 and C4 are SR-IOV enabled.
Each expansion drawer cable pair provides a single x16 PCIe Gen3 link between the system and the drawer, and the number of cable pairs depends on the I/O module configuration. A PCIe3 cable adapter, such as the x16 #EJ08 on the Power E950, must be installed in the host system first. Full-height adapters sit in blind-swap cassettes, and the drawer ships with a full set of cassettes. Concurrent repair, addition and removal of adapters run through HMC guided menus or operating system utilities.
The drawer measures 444.5 mm (17.5 in) wide by 177.8 mm (7.0 in) high by 736.6 mm (29.0 in) deep. A second fan-out module is not a hot-plug addition. On the 9040-MR9 two processor modules support two drawers, three support three and four support four. Removing or relocating a drawer needs the system powered off.
| Feature code | #EMX0 |
| Description | PCIe Gen3 I/O expansion drawer |
| Form factor | 19-inch rack, 4U |
| Dimensions | 444.5 mm W x 177.8 mm H x 736.6 mm D |
| Fan-out modules | two PCIe fan-out modules (#EMXG) |
| Slots | 12 PCIe Gen3, full-height, full-length (two x16 and four x8 per module) |
| Link | one x16 PCIe Gen3 link per cable pair |
| Adapter housing | blind-swap cassettes |
| Machine types | 9008-22L, 9009-22A, 9009-41A, 9009-42A, 9040-MR9, 9080-M9S, 9223-22H, 9223-42H |