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- Description
- Specifications
Spare part 03GX489 stands for the ThinkSystem RAID 540-16i PCIe Gen4 12Gb Adapter, option number 4Y37A78835 with feature code BNM5. The card is an internal RAID controller that attaches sixteen SAS or SATA drives.
The Broadcom SAS3816 controller, equivalent to the MegaRAID 9540-16i, talks to the server over a PCIe 4.0 x8 interface in a low-profile form factor. RAID 0, 1 and 10 are the supported levels, and drives can also stay in a JBOD state. There is no onboard cache, and the RAID functions use reserved server memory instead.
Sixteen 12 Gb SAS ports are routed to two x8 SFF-8654 connectors that serve HDDs, SSDs and self-encrypting drives. With a SAS expander the controller addresses up to 63 physical drives and 32 virtual drives. A fixed 64 KB stripe, FastPath SSD acceleration and SafeStore encryption services belong to the feature set. The controller reads drives formatted with 512e, 512n or 4K sectors and supports UNMAP on SAS SSDs.
The eight-port sibling, the ThinkSystem RAID 540-8i adapter, carries option number 4Y37A78834 and a separate spare part number. Both cards are rated for 10°C to 55°C at 20% to 90% non-condensing humidity during operation.
| Spare part number | 03GX489 |
| Manufacturer | Lenovo |
| Option number | 4Y37A78835 |
| Feature code | BNM5 |
| Type | Internal SAS/SATA RAID adapter |
| Controller | Broadcom SAS3816 |
| Host interface | PCIe 4.0 x8 |
| Form factor | PCIe low profile |
| Ports | 16 on two x8 SFF-8654 |
| RAID levels | 0, 1, 10 |
| Cache | None |