[CentOS] OT hardware issue: HP controller to 3rd party RAID

Wed Oct 7 19:44:11 UTC 2015
m.roth at 5-cent.us <m.roth at 5-cent.us>

John R Pierce wrote:
> On 10/7/2015 11:47 AM, Jack Bailey wrote:
>> On 10/07/15 11:13, m.roth at 5-cent.us wrote:
>>> Jack Bailey wrote:
>>>
>>>>> controller that expects to talk to individual SAS or SATA drives. you
>>>>> can manage it with hpssacli from centos.
>>>> I have the P822.  It has no JBOD or RAID 0.  hpacucli works with
>>>> CentOS 7.0, but is broken on 7.1 -- it cannot find the controller.
>>> Can it do RAID 6?
>>
>> This page says it does.
>> http://www8.hp.com/h20195/v2/GetHTML.aspx?docname=c04111199
>>
>> The page also says it does RAID 0, but I did not see that in the 5.42
>> BIOS.
>
> on many of those P4/P8 series raid cards, raid6 support is an extra cost
> option, but once its enabled for a given card, it continues to work on
> that card even if its moved.    The P420's I have support raid0
> (stripe)...

I have no idea - we got these from another Institute, and they're old.
>
> I googled JetStor, and saw a whole lineup of NAS/SAN boxes that support
> NFS, ISCSI, etc.     these wouldn't work with a raid card like a P800,
> but a SAS expansion tray from a JetStor should work if direct connected
> to the SmartArray card... a JetStor that has its own embedded raid
> controller with SAS host connectivity won't work with a hardware raid
> card like a P800, you would instead want a simple HBA card, such as a HP
> H221 Host Bus Adapter

My last resort might be to use one of the other controller cards, maybe
single-path the existing one, until the budget opens up....

       mark