CentOS - Oct 2015 - OT hardware issue: HP controller to 3rd party RAID

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.

Jack

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 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


-- 
john r pierce, recycling bits in santa cruz

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