Specification; Controllers For Internal Storage - Lenovo ThinkSystem SN550 Product Manual

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 Feature
number code
7Y37A01093 AUMV
7N47A00129 AUUL
7N47A00130 AUUV
* 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

Part number
Recommended use
Interface
Flash Type
4KB Random Read/Write Performance
4KB Random Write Performance
Sequential Read Performance
Sequential Write Performance
Endurance (total bytes written / drive writes per day)
Vendor model
Dimensions
* 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.
Lenovo ThinkSystem SN550 Server
Description
ThinkSystem M.2 with Mirroring Enablement Kit
(contains the Dual M.2 Boot Adapter, supports 1 or 2 drives)
ThinkSystem M.2 CV1 32GB SATA 6Gbps Non-Hot-Swap SSD
ThinkSystem M.2 CV3 128GB SATA 6Gbps Non-Hot-Swap SSD
32 GB M.2
7N47A00129
Boot drive*
6Gb SATA
MLC NAND
25,000 IOPS
10,500 IOPS
260 MB/s
40 MB/s
37.92TB / 0.66 DWPD
LiteOn CV1
42 x 22 mm
Maximum
Supported
1
2*
2*
128 GB M.2
7N47A00130
Boot drive*
6Gb SATA
TLC NAND
72,000 IOPS
32,000 IOPS
530 MB/s
470 MB/s
63.9 TB / 0.28 DWPD
LiteOn CV3
80 x 22 mm
21