RAID Introduction and Case Studies（Part 1）
With the development of RAID storage technology, significant breakthroughs have been made over the past few decades, providing higher reliability and performance for data storage. Future RAID storage will face greater challenges and opportunities, and new technologies and innovations will drive further advancements in RAID storage in terms of fault tolerance, performance, scalability, and cost-effectiveness
Network Interface Guide: From Technical Principles to LR-LINK Industrial-Grade Solutions
Today is digital age, the importance of network interfaces as the critical components connecting devices to networks is self-evident. Serving as the hardware/software interaction point for data exchange between devices and networks, network interfaces undertake key tasks such as protocol conversion, signal modulation, and data encapsulation.
LRES3040PF-OCP is an OCP 3.0 SFF Dual-port 25G ethernet network adapter. Virtualization applications with 1/10/25G connectivity for network infrastructure, native hardware support based on ethernet stateless offload engine, direct connection technology, etc.
The SR-IOV technology of LRES3040PF-OCP provides dedicated adapter resources for VMS in the server to meet the guarantee of isolation and protection. Meanwhile, I/O virtualization provides better server utilization in the data center and reduces the cost and cabling complexity. Allow more virtual machines to run on the same hardware to meet more user needs.
LRES3040PF-OCP uses NVGRE, VXLAN and GENEVE hardware uninstallation engines to effectively solve the problem of VM traffic transmission through the logical tunnel of packaging formats (such as NVGRE and VXLAN). The problem of network scalability and load on the host CPU is solved. These offload engines encapsulate and unencapsulate override protocol headers, enabling traditional offloads to be performed on encapsulated traffic of these and other tunnel protocols (geneva, MPLS, QinQ, etc.).
LRES3040PF-OCP provides a very economical and flexible Ethernet adapter solution for Web 2.0, cloud, data analytics, database, and storage platforms.
Specifications
Cable medium
Optical Fiber
Bracket Height
SFF
Power (max)
10.572 W
System Support
Windows 8 /8.1 /10 /11
Windows Server 2012 R2 /2016 R2 /2019 R2 /2022 R
RHEL/CentOS 7.3 /7.6 /7.9 /8.2 /8.3
Deepin 15.11/ 20 /20.6
Ubuntu 18.04.5 /16.04.3 /20.04.3
SUSE 12.5 /15
ZTE New Fulcrum 3.2.2 /5.0.5
Asianux Server V 7.0
Galaxy Unicorn V10 SP1
NeoKylin 7.6
Zhongke Fangde desktop operating system 4.0
Zhongke Fangde server operating system
Tongxin UOS 20
Emind OS
VMware ESXI 6.5 /6.7/ 7.0
iKuai router
Bus Type
OCP 3.0
Data rate per port
1Gbps、10Gbps、25Gbps
Connector
2*25G SFP28
Power Supply
OCP
Technical Features
Protocol Support
IEEE 802.3by-2016 25GBASE-X Ethernet
IEEE 802.3ae 10GBASE-X Ethernet
IEEE 802.3z 1GBASE-X Ethernet
IEEE 802.3ap
IEEE 802.3ad
IEEE 802.1Q
IEEE 802.1Qaz
IEEE 802.1Qbb
IEEE 802.1Qbg
IEEE 1588 PTP v2
IEEE 802.3az - Energy Efficient Ethernet
PXE
Yes
DPDK
Yes
WoL
No
iSCSI
No
Jumbo Frames
Yes
IEEE 1588
Yes
SR-IOV
Yes
Jumbo data frame MAX
9.2KB
FCoE
No
ESD_Contact discharge
±8KV (Class B)
ESD_Air discharge
±15KV (Class B)
ESD test classification
Class A: Normal performance within the limits specified by the manufacturer, commissioner, or purchaser.
Class B: Temporary loss or reduction of function or performance, but can be recovered by itself after the disturbance stops, without operator intervention;
Class C: Temporary loss or degradation of function or performance that requires operator intervention to restore;
Class D: irrecoverable loss of function or performance degradation due to damage to device hardware or software, or loss of data.
Environment Features
Operating Temperature
0℃ to 55℃ (32 ℉ to 131 ℉)
Storage Temperature
-40 ℃ to 70 ℃ (-40 ℉ to 158 ℉)
Storage Humidity
Maximum: 90% non-condensing relative humidity at 35 ℃
Certification
FCC, CE, RoHS
Physical Features
PCB Size(mm)
115*76*1.6
Package Size(mm)
179*150*30
Weight(g)
*
LED Indicators
1/10/25Gbps
LINK
Green Link
ACT
Green Blink
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