Features of the Dual M.2 Boot Adapter:
PCIe 2.0 x2 host interface (connects to the PCH)
Based on the Marvell 88SE9230 6 Gbps SATA controller
Supports two 6 Gbps SATA M.2 drives (it is not supported to have only one drive)
Supports 3 different physical sizes of M.2 drives: 42mm (2242), 60mm (2260) and 80mm (2280)*
RAID functionality provided by the M.2 adapter
RAID 1 by default; also supports RAID 0 and JBOD
UEFI-based settings to enable/disable RAID mode and to review inventory
Adapter and drive firmware update using Lenovo firmware tools
Management via I2C interface
* 2242, 2260 and 2280 are the industry terms for the M.2 drive dimensions. For example, 2280
corresponds to a drive that is 22mm wide and 80mm long.
The M.2 components are listed in the following table.
Table 16. M.2 components
Part
number
Feature
code Description
Maximum
Supported
7Y37A01093 AUMV ThinkSystem M.2 with Mirroring Enablement Kit
(contains the Dual M.2 Boot Adapter, supports 1 or 2 drives)
1
7N47A00129 AUUL ThinkSystem M.2 CV1 32GB SATA 6Gbps Non-Hot-Swap SSD 2*
7N47A00130 AUUV ThinkSystem M.2 CV3 128GB SATA 6Gbps Non-Hot-Swap SSD 2*
* 7Y37A01093 supports a maximum of two M.2 drives; drives must be identical.
The following table lists the specifications of the M.2 drives.
Table 17. M.2 drive specifications
Specification 32 GB M.2 128 GB M.2
Part number 7N47A00129 7N47A00130
Recommended use Boot drive* Boot drive*
Interface 6Gb SATA 6Gb SATA
Flash Type MLC NAND TLC NAND
4KB Random Read/Write Performance 25,000 IOPS 72,000 IOPS
4KB Random Write Performance 10,500 IOPS 32,000 IOPS
Sequential Read Performance 260 MB/s 530 MB/s
Sequential Write Performance 40 MB/s 470 MB/s
Endurance (total bytes written / drive writes per day) 37.92TB / 0.66 DWPD 63.9 TB / 0.28 DWPD
Vendor model LiteOn CV1 LiteOn CV3
Dimensions 42 x 22 mm 80 x 22 mm
* These drive options do not have power-loss capacitors, which means they do not have protection against
a potential loss of data when a write operation is underway just as a power outage occurs. As a result,
these drives are not recommended for general purpose storage functions.
Controllers for Internal Storage
In addition to the optional M.2 RAID-1 enabled adapter, the SN550 supports 3 different RAID controllers as
shown in the table below.
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