Servers - General

Dual controllers ? One HBA & one RAID

 
dhenzler
Occasional Advisor

Dual controllers ? One HBA & one RAID

I have a DL380e G8 server and just installed a riser board b320i (HBA H200) controller.  The machine came equipped with a 420i RAID controller.

Having 14 drive bays the two 2-1/2" bays make for a perfect RAID Mirror config for boot.  However I'd really like to use the 12 LFF bays for storage using HBA.  I'll be booting FreeNAS or TrueNAS on the system.

I found that I can have both plugged in without interaction, however don't quite know how to go about only servicing the two rear drives with the RAID controller.  I could use them without RAId using the SATA controler.  But would prefer the Mirroring feature.

How are the drive bays separated.  Cable 1 & Cable 2 ?  I really only need 6 of the front LFF bays for HBA  Could I just plug one cable into each of the controllers ?

Know that a dual purpose controller is available.  But probably costs way more than I paid for the server.

Dave - Down East North Carolina

3 REPLIES 3
Harsh_b
HPE Pro

Re: Dual controllers ? One HBA & one RAID

Hello Dhenzler.

I hope this article would help in cabling, if does not then please let me know exact card model (HBA) you wish to use for 6 of the front LFF bays.

https://support.hpe.com/hpesc/public/docDisplay?docId=emr_na-c03425477

Regards

I am an HPE employee
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Harsh_b
HPE Pro

Re: Dual controllers ? One HBA & one RAID

Hello dhenzler, 

Please let us know if you were able to setup the server with desired configuration?

 

Regards

I am an HPE employee
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dhenzler
Occasional Advisor

Re: Dual controllers ? One HBA & one RAID

Thanks for touching base... I haven't done anything yet, but will when I have a few hours to give it my full attention.  I'm reading that the b320i can only provide for 8 SAS drives.  This is not consistent with my experience.  Two of my 380e servers are using the "riser" version b320i and both have 12 drives.  Works just fine.  I am a bit hazy on how the two cables service the backplane, and the 2 rear mounted drives for a total of 14 drives.  Does each cable handle up to 8 drives?   Which cable connection would supply service to the two rear drives, and which of the front drives? 

Ideally I would have all dozen of the front LFF drives on SAS, and the two rear drives set for mirroring on a true RAID1 array.  Supporting hot swap.  I'd be using this configuration on FreeNAS.  I think the two SFF 73GB 10K rpm drives would work better than a USB drive for boot, and reboot of FreeNAS.  If I can get this configuration working I would move my production servers over to these two newer DL380eG8's and move the others to my "play room" for trying different things.  They also have 14 bays but are all LFF.

Right now am playing with a DL380pG8 which I have plans to evaluate Nginx reverse proxy web service for my dozen websites.  I'd like all to be SSL and as it stands can only support one on port 443 now.  Am investigating an method using Docker.  This would improve my hack resistance which will be increasingly important in days to come.

Thanks again for your info.  I'll let you know how it's going.

Dave