Lenovo ThinkSystem RAID 940-16i 8GB Flash PCIe Gen4 12Gb, Installation And User Manual

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© Copyright Lenovo 2020 ThinkSystem RAID 940-16i 8GB Flash PCIe Gen4 12Gb Internal Adapter Installation
and User Guide
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
Global and dedicated hot spare with revertible hot spare support

Automatic rebuild
 Enclosure affinity

Emergency SATA hot spare for SAS arrays

Enclosure management
 SCSI Enclosure Services (SES) (inband)

SGPIO (sideband) or I2C (UBM) enclosure management

DataBolt bandwidth optimizer technology support for compatible expander-based enclosures
 Shield state drive diagnostic technology
1.2 Operating System Support
The adapter supports the operating systems in the following list.

Microsoft Windows
 VMware vSphere/ESXi

Red Hat Enterprise Linux
 SuSE Linux

Ubuntu Linux

Citrix XenServer
 CentOS Linux

Debian Linux

Oracle Enterprise Linux
 Fedora

FreeBSD
Visit http://support.lenovo.com , and download the latest firmware and driver for the adapter.
1.3 PCIe Host Interface
The adapter’s PCIe 4.0 host interface provides maximum transmission and reception rates of up to 128 GT/s (16 Gb/s per
lane). The tri-mode controller uses a packet-based communication protocol to communicate over the serial interconnect.
Other PCIe host interface features include the following:

Eight-lane PCIe host interface
 PCIe Hot Plug

Power management
– Supports the
PCI Bus Power Management Interface Specification Revision 1.2
– Supports Active State Power Management, including the L0 states, by placing links in a power-saving mode
during times of no link activity

Error handling

High bandwidth per pin with low overhead and low latency
 Lane reversal and polarity inversion

Single-phy (one-lane) link transfer rate of 16 GT/s, 8 GT/s, 5 GT/s, and 2.5 GT/s in each direction
 Eight-lane aggregate bandwidth of up to 16 GB/s (16,000 MB/s)

Support of x8, x4, x2, and x1 link widths