Thanks a lot. You said HP is not a good solution for storage node. What is the
alternative? Which hardware model is better?Thanks.
On Sunday, January 1, 2023, 10:24:42 PM GMT+3:30, Sebastian
<[email protected]> wrote:
Definitely HBA mode.
In my opinion, it is good to use in a lab, but not for production.
Unfortunately, I have had bad experiences with p420 controllers. These
controllers had problems with internal (controller) restarts under high
workloads, which resulted in problems with Ceph. A firmware update helped, but
for a long time, we haven't used HP on Ceph clusters. Sometimes they are used
as compute nodes, but another problem we've had is spontaneous node restarts
during soft RAID 1 MD sync (also under high workloads). Many controllers had to
be replaced during the warranty period.
BR,
Sebastian
> On 1 Jan 2023, at 16:48, [email protected] wrote:
>
> Hi Experts,For my new ceph cluster, my existing storage nodes have Smart
> Array Raid Controller P420i (HP G8). I have 6 Enterprise-SSD Disks for every
> storage Node.From your experiences, activating HBA Mode is better than Raid 0
> or not?I know that Raid Controller and Raid Controller Cache are not
> recommended for Ceph. What is your experience?
> Do you recommend me to disable Raid cache and enable HBA mode?
>
> Thanks in advance.
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