Am 17.08.2016 um 20:22 schrieb John R Pierce:
On 8/17/2016 7:46 AM, Fawzy Ibrhim wrote:
There's no option in BIOS to disable the RAID mode; this is NEC
servers !!
huh. i've never seen anyone using the lsi megaraid firmware with
intel SATA ports, so thats two things weird about NEC, kinda glad I
don't ever see those.
I have been working as a NEC partner and reseller and know very well
what NEC implements in their Express 5800 server line.
They do not ship anything from LSI which is fake RAID. The onboard SATA
controllers are Intel chip technology and can work with Windows drivers
in fake RAID mode. Not with Linux.
On the other hand when real RAID is wanted NEC sells LSI PCI
controllers. In the model R120b-2 it had been the LSI MegaRAID SAS
9264-8i. That controller has a BIOS where you define all the common
parameters which apply to a true RAID controller.
What NEC offers can easily be seen in the Configuration Guide for the
named server model:
http://www.nec.com/en/global/prod/express/rack/r120b-2/collateral/R120b-2_CG.pdf
NEC did some Linux compatibility testing:
http://www.nec.com/en/global/prod/express/linux/r120b-2/EN_R120b-2_CentOS64.html
http://www.nec.com/en/global/prod/express/linux/r120b-2/EN_R120b-2_RH64.html
It is pretty simple: if lspci does not print out a PCI RAID controller
card then there is simply no real RAID functionality and no LSI
component in that server model.
NEC engineers very solid and produces very reliable server hardware.
Many components are industry standard, as the Intel chipsets and
processors, OEM LSI RAID controller cards, Emulex FiberChannel HBAs, ...
NEC does not do any strange modification like implementing LSI firmware
into Intel chips. Though their motherboards are their own design and are
manufactured in Japan.
Regards
Alexander
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