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, hosseinz8050@xxxxxxxxx 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. > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
 |