Mainboard Layout - Huawei RH2288 V3 User Manual

RH2288 V3 Server
User Guide
No. Compone
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2.6 Mainboard Layout

Figure 2-18
Issue 32 (2019-03-28)
Description
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SD card SD cards use flash memory and SPIs to store data. Currently, NAND
flash memory is mostly used in the industry. NAND flash memory
stores electrons on the floating gate to store data. However, electrons
frequently passing through the floating gate will weaken the gate's
ability to store electrons and eventually make the gate unable to store
electrons. This problem is common to NAND flash memory. The
amount of service data to be written needs to be assessed to prevent
component failures.
NOTE
l An SD card can be used only as a boot device for OSs.
l SD cards have weak endurance and cannot be used as data storage devices.
Use enterprise-level HDDs or SSDs to replace SD cards for data storage
when frequent data erasure operations are involved.
l Installing write-intensive service software on SD cards will accelerate the
write life consumption and result in perpetual damage of SD cards. SD
cards cannot be used for such services.
l SD cards cannot be used in cache scenarios.
Flexible Supported flexible NIC configurations:
NIC
l One GE flexible NIC with two or four GE ports, or one 10GE
flexible NIC with two 10GE electrical or optical ports. Both
flexible NICs support the Network Controller Sideband Interface
(NC-SI).
l One IB flexible NIC with one or two 56G IB optical ports. The
flexible NIC does not support NC-SI.
NOTE
To query information about the flexible NICs supported by the RH2288 V3, use
the Huawei Server Compatibility
shows the mainboard layout.
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