Home / Shop / IBM / Networking (IBM / Lenovo)
- Description
- Specifications
The ThinkSystem RAID 540-8i PCIe Gen4 12Gb Adapter is supplied under Lenovo FRU 03GX488, option number 4Y37A78834 and feature code BMFT. It serves as an internal RAID controller for SAS and SATA HDDs and SSDs attached to the server.
The Broadcom SAS3808 controller on this low-profile card corresponds to the MegaRAID 9540-8i, and the host interface is PCIe 4.0 x8. RAID levels 0, 1 and 10 are supported together with a JBOD drive state. The adapter has no cache and borrows server memory through Reserved Memory Region Reporting for its RAID functions.
Eight 12 Gb SAS ports arrive on one x8 SFF-8654 connector, and up to 63 drives can be reached with a SAS expander. HDDs, SSDs and self-encrypting drives are all accepted, with up to 32 virtual drives and a fixed 64 KB stripe size. FastPath acceleration and SafeStore are included, and TRIM is supported for SATA SSDs in JBOD mode. Operating conditions run from 10°C to 55°C at 20% to 90% humidity without condensation.
Through Tri-Mode support, this 8-port model also accepts NVMe U.3 drives for 7mm and M.2 boot use. Its 16-port sibling, the ThinkSystem RAID 540-16i adapter, is option 4Y37A78835 with its own spare number.
| Spare part number | 03GX488 |
| Manufacturer | Lenovo |
| Option number | 4Y37A78834 |
| Feature code | BMFT |
| Type | Internal SAS/SATA RAID adapter |
| Controller | Broadcom SAS3808 |
| Host interface | PCIe 4.0 x8 |
| Form factor | PCIe low profile |
| Ports | 8 on one x8 SFF-8654 |
| RAID levels | 0, 1, 10 |
| Cache | None |